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SubjectLinux 3.16.52
I'm announcing the release of the 3.16.52 kernel.

All users of the 3.16 kernel series should upgrade.

The updated 3.16.y git tree can be found at:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.16.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git

The diff from 3.16.51 is attached to this message.

Ben.

------------

Makefile | 2 +-
arch/alpha/kernel/ptrace.c | 2 +-
arch/arm/boot/dts/da850-evm.dts | 7 ++
arch/arm/include/asm/Kbuild | 1 -
arch/arm/include/asm/unaligned.h | 27 +++++
arch/arm/kernel/traps.c | 28 ++++--
arch/arm/kvm/emulate.c | 5 +-
arch/arm/kvm/mmio.c | 4 +-
arch/arm64/kernel/head.S | 1 +
arch/arm64/kernel/traps.c | 28 +++---
arch/arm64/kvm/inject_fault.c | 16 ++-
arch/arm64/mm/fault.c | 2 +-
arch/blackfin/kernel/ptrace.c | 4 +-
arch/cris/arch-v32/kernel/ptrace.c | 2 +-
arch/ia64/kernel/ptrace.c | 2 +-
arch/mips/ar7/platform.c | 1 +
arch/mips/include/asm/mips-cm.h | 4 +-
arch/mips/kernel/ptrace32.c | 4 +-
arch/mips/mm/uasm-micromips.c | 2 +-
arch/parisc/kernel/syscall.S | 6 +-
arch/powerpc/kernel/ptrace32.c | 4 +-
arch/powerpc/perf/core-book3s.c | 5 +
arch/powerpc/platforms/pseries/mobility.c | 4 +-
arch/s390/mm/gup.c | 7 +-
arch/sh/include/cpu-sh2a/cpu/sh7264.h | 4 +-
arch/sh/include/cpu-sh2a/cpu/sh7269.h | 4 +-
arch/sh/include/cpu-sh4/cpu/sh7722.h | 2 +-
arch/sh/include/cpu-sh4/cpu/sh7757.h | 8 +-
arch/tile/kernel/setup.c | 2 +-
arch/x86/crypto/salsa20_glue.c | 7 --
arch/x86/include/asm/uaccess.h | 14 ++-
arch/x86/kernel/amd_nb.c | 48 +++++++++
arch/x86/kernel/cpu/microcode/intel.c | 18 ++++
arch/x86/kvm/vmx.c | 7 +-
arch/x86/kvm/x86.c | 8 +-
arch/x86/oprofile/op_model_ppro.c | 4 +-
block/bio.c | 14 ++-
crypto/hmac.c | 6 +-
crypto/salsa20_generic.c | 7 --
crypto/shash.c | 13 ++-
drivers/block/rbd.c | 4 +-
drivers/bus/mvebu-mbus.c | 2 +-
drivers/crypto/talitos.c | 7 +-
drivers/gpio/gpiolib-acpi.c | 2 +-
drivers/gpu/drm/i915/intel_bios.c | 7 ++
drivers/hid/i2c-hid/i2c-hid.c | 3 +-
drivers/iio/adc/ad7793.c | 4 +-
drivers/iio/adc/ad_sigma_delta.c | 28 ++++++
drivers/iio/adc/mcp320x.c | 1 +
drivers/iio/industrialio-core.c | 4 +-
drivers/infiniband/hw/mlx5/mem.c | 49 ++++-----
drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 3 +
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 13 ---
drivers/input/ff-core.c | 13 ++-
drivers/input/misc/ims-pcu.c | 16 ++-
drivers/input/misc/uinput.c | 57 +++++++----
drivers/input/touchscreen/ti_am335x_tsc.c | 2 +-
drivers/iommu/amd_iommu.c | 1 +
drivers/iommu/exynos-iommu.c | 2 +-
drivers/net/can/c_can/c_can_pci.c | 1 -
drivers/net/can/c_can/c_can_platform.c | 1 -
drivers/net/can/usb/esd_usb2.c | 2 +-
drivers/net/can/usb/gs_usb.c | 10 +-
drivers/net/can/usb/kvaser_usb.c | 3 +-
drivers/net/macvtap.c | 6 +-
drivers/net/tun.c | 7 ++
drivers/net/wireless/brcm80211/brcmfmac/fweh.c | 58 +++--------
drivers/net/wireless/brcm80211/brcmfmac/fweh.h | 68 ++++++++++---
drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 10 ++
.../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 5 +
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 10 +-
drivers/pci/pci-sysfs.c | 11 ++-
drivers/s390/scsi/zfcp_aux.c | 5 +
drivers/s390/scsi/zfcp_erp.c | 18 ++--
drivers/s390/scsi/zfcp_scsi.c | 5 +
drivers/scsi/libiscsi.c | 2 +-
drivers/scsi/lpfc/lpfc_init.c | 1 +
drivers/scsi/scsi_scan.c | 3 +
drivers/scsi/sd.c | 16 ++-
drivers/staging/iio/adc/ad7192.c | 4 +-
drivers/staging/iio/meter/ade7759.c | 2 +-
drivers/usb/class/cdc-acm.c | 3 +
drivers/usb/core/config.c | 6 +-
drivers/usb/core/hub.c | 13 ++-
drivers/usb/core/quirks.c | 4 +
drivers/usb/gadget/composite.c | 5 +
drivers/usb/gadget/dummy_hcd.c | 81 +++++++++++----
drivers/usb/gadget/f_mass_storage.c | 31 ++----
drivers/usb/gadget/f_mass_storage.h | 14 ---
drivers/usb/gadget/inode.c | 55 +++++++++--
drivers/usb/gadget/mass_storage.c | 20 +---
drivers/usb/gadget/net2280.c | 5 +-
drivers/usb/host/pci-quirks.c | 8 +-
drivers/usb/host/xhci-hub.c | 22 ++++-
drivers/usb/host/xhci.h | 2 +-
drivers/usb/renesas_usbhs/fifo.c | 23 ++++-
drivers/usb/serial/cp210x.c | 1 +
drivers/usb/serial/ftdi_sio.c | 2 +
drivers/usb/serial/ftdi_sio_ids.h | 7 ++
drivers/usb/serial/metro-usb.c | 1 +
drivers/usb/serial/option.c | 2 +
drivers/usb/serial/qcserial.c | 4 +
drivers/usb/storage/transport.c | 14 ++-
drivers/usb/storage/unusual_devs.h | 7 ++
drivers/uwb/hwa-rc.c | 2 +
drivers/uwb/uwbd.c | 12 ++-
fs/block_dev.c | 6 +-
fs/btrfs/ioctl.c | 10 +-
fs/cifs/cifsfs.c | 2 +-
fs/cifs/connect.c | 8 ++
fs/cifs/file.c | 7 ++
fs/cifs/smb2pdu.c | 34 +++++--
fs/direct-io.c | 3 +-
fs/ecryptfs/ecryptfs_kernel.h | 25 +++--
fs/ecryptfs/keystore.c | 9 +-
fs/exec.c | 22 ++++-
fs/fscache/object-list.c | 7 ++
fs/fuse/dir.c | 3 +-
fs/mpage.c | 14 ++-
fs/ocfs2/alloc.c | 24 +++--
fs/read_write.c | 4 +-
fs/xattr.c | 2 +-
include/crypto/internal/hash.h | 8 ++
include/linux/buffer_head.h | 1 +
include/linux/capability.h | 2 +
include/linux/iio/adc/ad_sigma_delta.h | 3 +
include/linux/input.h | 1 +
include/linux/key.h | 2 +
include/linux/mbus.h | 4 +-
include/linux/mm.h | 2 +
include/linux/mm_types.h | 1 +
include/linux/mmzone.h | 10 +-
include/linux/netdevice.h | 3 +
include/linux/of.h | 10 ++
include/linux/pci_ids.h | 2 +
include/linux/preempt_mask.h | 21 ++--
include/linux/ptrace.h | 11 ++-
include/linux/sched.h | 1 +
include/linux/skbuff.h | 7 ++
include/net/protocol.h | 2 +-
include/net/route.h | 4 +-
include/net/tcp.h | 8 +-
include/net/udp.h | 2 +-
include/scsi/scsi_device.h | 1 +
include/scsi/scsi_devinfo.h | 1 +
include/sound/seq_kernel.h | 3 +-
include/sound/seq_virmidi.h | 1 +
include/sound/timer.h | 2 +
include/trace/events/kvm.h | 7 +-
include/uapi/linux/spi/spidev.h | 1 +
kernel/capability.c | 36 ++++++-
kernel/fork.c | 9 +-
kernel/params.c | 2 +-
kernel/ptrace.c | 91 +++++++++++------
kernel/sched/core.c | 21 ++--
kernel/sched/features.h | 1 -
kernel/sysctl.c | 3 +-
kernel/trace/trace.c | 12 ++-
kernel/workqueue.c | 37 +++----
kernel/workqueue_internal.h | 3 +-
lib/asn1_decoder.c | 7 +-
lib/digsig.c | 6 ++
mm/huge_memory.c | 14 +--
mm/init-mm.c | 2 +
mm/memory.c | 2 +-
mm/memory_hotplug.c | 6 +-
mm/nommu.c | 2 +-
net/8021q/vlan.c | 6 +-
net/bluetooth/bnep/core.c | 3 +
net/bluetooth/cmtp/core.c | 3 +
net/core/dev.c | 6 +-
net/core/rtnetlink.c | 5 +-
net/core/skbuff.c | 1 +
net/dccp/proto.c | 5 +
net/ipv4/ip_input.c | 22 +++--
net/ipv4/ip_vti.c | 3 +-
net/ipv4/route.c | 44 +++++----
net/ipv4/tcp_ipv4.c | 9 +-
net/ipv4/tcp_output.c | 12 ++-
net/ipv4/udp.c | 30 ++++--
net/ipv6/ip6_gre.c | 41 ++++----
net/ipv6/ip6_vti.c | 3 +-
net/l2tp/l2tp_core.c | 10 +-
net/l2tp/l2tp_core.h | 5 +-
net/l2tp/l2tp_eth.c | 51 +---------
net/l2tp/l2tp_ip.c | 20 ++--
net/l2tp/l2tp_ip6.c | 21 ++--
net/l2tp/l2tp_ppp.c | 10 +-
net/netfilter/ipset/ip_set_core.c | 23 +++--
net/netfilter/nfnetlink_cthelper.c | 10 ++
net/netfilter/x_tables.c | 4 +-
net/netfilter/xt_osf.c | 7 ++
net/netlink/af_netlink.c | 3 +
net/packet/af_packet.c | 4 +-
net/sched/sch_generic.c | 1 +
net/sctp/input.c | 2 +-
net/sctp/sm_sideeffect.c | 4 +-
net/unix/diag.c | 2 +
net/wireless/nl80211.c | 12 ++-
net/xfrm/xfrm_state.c | 1 +
net/xfrm/xfrm_user.c | 3 +-
security/keys/big_key.c | 2 +-
security/keys/encrypted-keys/encrypted.c | 7 ++
security/keys/internal.h | 2 +-
security/keys/key.c | 2 +
security/keys/keyctl.c | 8 +-
security/keys/keyring.c | 72 +++++++-------
security/keys/process_keys.c | 8 +-
security/keys/request_key.c | 46 +++++++--
security/keys/request_key_auth.c | 69 ++++++-------
security/keys/trusted.c | 69 ++++++-------
security/smack/smack_lsm.c | 65 ++++++------
security/yama/yama_lsm.c | 4 +-
sound/core/hrtimer.c | 1 +
sound/core/seq/oss/seq_oss_midi.c | 4 +-
sound/core/seq/oss/seq_oss_readq.c | 29 ++++++
sound/core/seq/oss/seq_oss_readq.h | 2 +
sound/core/seq/seq_clientmgr.c | 2 +-
sound/core/seq/seq_virmidi.c | 27 +++--
sound/core/timer.c | 109 ++++++++++++++-------
sound/core/timer_compat.c | 17 +++-
sound/pci/hda/hda_codec.c | 2 +-
sound/soc/codecs/adau17x1.c | 24 ++++-
sound/soc/codecs/adau17x1.h | 2 +
sound/usb/caiaq/device.c | 12 ++-
sound/usb/usx2y/usb_stream.c | 6 +-
226 files changed, 1732 insertions(+), 944 deletions(-)

Adrian Salido (1):
HID: i2c-hid: allocate hid buffers for real worst case

Al Viro (3):
more bio_map_user_iov() leak fixes
Bluetooth: cmtp: cmtp_add_connection() should verify that it's dealing with l2cap socket
Bluetooth: bnep: bnep_add_connection() should verify that it's dealing with l2cap socket

Alan Stern (11):
usb-storage: fix bogus hardware error messages for ATA pass-thru devices
usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
USB: gadgetfs: fix copy_to_user while holding spinlock
USB: gadgetfs: Fix crash caused by inadequate synchronization
USB: g_mass_storage: Fix deadlock when driver is unbound
USB: dummy-hcd: fix connection failures (wrong speed)
USB: dummy-hcd: fix infinite-loop resubmission bug
USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks
USB: dummy-hcd: Fix erroneous synchronization change
USB: dummy-hcd: Fix deadlock caused by disconnect detection
USB: core: prevent malicious bNumInterfaces overflow

Alex Estrin (1):
Revert "IB/ipoib: Update broadcast object if PKey value was changed in index 0"

Alexey Kodanev (1):
vti: fix use after free in vti_tunnel_xmit/vti6_tnl_xmit

Andreas Engel (1):
USB: serial: cp210x: add support for ELV TFD500

Andreas Gruenbacher (2):
vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets
direct-io: Prevent NULL pointer access in submit_page_section

Andrei Vagin (1):
net/unix: don't show information about sockets from other namespaces

Andrew Gabbasov (1):
usb: gadget: composite: Fix use-after-free in usb_composite_overwrite_options

Andrew Honig (1):
KVM: VMX: remove I/O port 0x80 bypass on Intel hosts

Andrey Konovalov (2):
uwb: ensure that endpoint is interrupt
uwb: properly check kthread_run return value

Aravind Gopalakrishnan (2):
pci_ids: Add PCI device IDs for F15h M60h
x86, amd_nb: Add device IDs to NB tables for F15h M60h

Arnd Bergmann (4):
gpio: acpi: work around false-positive -Wstring-overflow warning
usb: gadget: dummy: fix nonsensical comparisons
include/linux/of.h: provide of_n_{addr,size}_cells wrappers for !CONFIG_OF
ARM: 8715/1: add a private asm/unaligned.h

Ashish Samant (1):
ocfs2: fstrim: Fix start offset of first cluster group during fstrim

Baruch Siach (1):
spi: uapi: spidev: add missing ioctl header

Ben Hutchings (2):
ipsec: Fix aborted xfrm policy dump crash
Linux 3.16.52

Bo Yan (1):
tracing: Erase irqsoff trace with empty write

Borislav Petkov (3):
x86/microcode/intel: Disable late loading on model 79
x86/cpu/AMD: Apply the Erratum 688 fix when the BIOS doesn't
x86/oprofile/ppro: Do not use __this_cpu*() in preemptible context

Casey Schaufler (1):
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak

Christophe Jaillet (1):
IB/mlx5: Fix the size parameter to find_first_bit

Colin Ian King (2):
IB/ocrdma: fix incorrect fall-through on switch statement
staging: iio: ade7759: fix signed extension bug on shift of a u8

Cong Wang (2):
tun: call dev_get_valid_name() before register_netdevice()
vlan: fix a use-after-free in vlan_device_event()

Craig Gallek (1):
tun/tap: sanitize TUNSETSNDBUF input

Dan Carpenter (1):
tile: array underflow in setup_maxnodemem()

David Disseldorp (2):
SMB: fix leak of validate negotiate info response buffer
SMB: fix validate negotiate info uninitialised memory use

Dmitry Fleytman (1):
usb: Increase quirk delay for USB devices

Dmitry Torokhov (3):
Input: uinput - avoid FF flush when destroying device
Input: uinput - avoid crash when sending FF request to device going away
Input: ims-psu - check if CDC union descriptor is sane

Dongjiu Geng (1):
arm/arm64: KVM: set right LR register value for 32 bit guest when inject abort

Dragos Bogdan (2):
iio: ad_sigma_delta: Implement a dedicated reset function
iio: ad7793: Fix the serial interface reset

Eric Biggers (18):
KEYS: fix cred refcount leak in request_key_auth_new()
KEYS: don't revoke uninstantiated key in request_key_auth_new()
KEYS: fix key refcount leak in keyctl_assume_authority()
KEYS: fix key refcount leak in keyctl_read_key()
KEYS: fix writing past end of user-supplied buffer in keyring_read()
KEYS: prevent creating a different user's keyrings
KEYS: encrypted: fix dereference of NULL user_key_payload
FS-Cache: fix dereference of NULL user_key_payload
lib/digsig: fix dereference of NULL user_key_payload
ecryptfs: fix dereference of NULL user_key_payload
KEYS: return full count in keyring_read() if buffer is too small
KEYS: trusted: sanitize all key material
KEYS: trusted: fix writing past end of buffer in trusted_read()
KEYS: fix out-of-bounds read during ASN.1 parsing
KEYS: fix NULL pointer dereference during ASN.1 parsing [ver #2]
crypto: salsa20 - fix blkcipher_walk API usage
crypto: hmac - require that the underlying hash algorithm is unkeyed
KEYS: add missing permission check for request_key() destination

Eric Dumazet (3):
tcp: fastopen: fix on syn-data transmit failure
netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
tcp: fix tcp_mtu_probe() vs highest_sack

Eric W. Biederman (5):
mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
exec: Ensure mm->user_ns contains the execed files
ptrace: Don't allow accessing an undumpable mm
ptrace: Properly initialize ptracer_cred on fork

Ethan Zhao (1):
sched/sysctl: Check user input value of sysctl_sched_time_avg

Felipe Balbi (1):
usb: quirks: add quirk for WORLDE MINI MIDI keyboard

Florian Westphal (1):
netfilter: ipset: pernet ops must be unregistered last

Geert Uytterhoeven (4):
sh: sh7722: remove nonexistent GPIO_PTQ7 to fix pinctrl registration
sh: sh7757: remove nonexistent GPIO_PT[JLNQ]7_RESV to fix pinctrl registration
sh: sh7264: remove nonexistent GPIO_PH[0-7] to fix pinctrl registration
sh: sh7269: remove nonexistent GPIO_PH[0-7] to fix pinctrl registration

Gerald Schaefer (1):
s390/mm: fix write access check in gup_huge_pmd()

Guillaume Nault (6):
l2tp: fix l2tp_eth module loading
l2tp: check ps->sock before running pppol2tp_session_ioctl()
l2tp: hold tunnel in pppol2tp_connect()
l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
l2tp: hold tunnel socket when handling control frames in l2tp_ip and l2tp_ip6
l2tp: don't use l2tp_tunnel_find() in l2tp_ip and l2tp_ip6

Gustavo A. R. Silva (1):
MIPS: microMIPS: Fix incorrect mask in insn_table_MM

Hante Meuleman (1):
brcmfmac: Add length checks on firmware events

Haozhong Zhang (1):
KVM: nVMX: fix guest CR4 loading when emulating L2 to L1 exit

Henryk Heisig (1):
USB: serial: option: add support for TP-Link LTE module

Herbert Xu (1):
crypto: shash - Fix zero-length shash ahash digest crash

Ilya Dryomov (1):
rbd: use GFP_NOIO for parent stat and data requests

Ilya Lesokhin (1):
IB/mlx5: Simplify mlx5_ib_cont_pages

Jan Luebbe (1):
bus: mbus: fix window size calculation for 4GB windows

Jani Nikula (1):
drm/i915/bios: ignore HDMI on port A

Jann Horn (1):
security: let security modules use PTRACE_MODE_* with bitmasks

Jason A. Donenfeld (1):
security/keys: properly zero out sensitive key material in big_key

Jean Delvare (1):
kernel/params.c: align add_sysfs_param documentation with code

Jeff Lance (1):
Input: ti_am335x_tsc - fix incorrect step config for 5 wire touchscreen

Jeffrey Chu (1):
USB: serial: ftdi_sio: add id for Cypress WICED dev board

Jim Dickerson (1):
usb: pci-quirks.c: Corrected timeout values used in handshake

Jimmy Assarsson (1):
can: kvaser_usb: Correct return value in printout

Joerg Roedel (1):
iommu/amd: Finish TLB flush in amd_iommu_unmap()

Johan Hovold (1):
USB: serial: metro-usb: add MS7820 device id

Johannes Thumshirn (1):
scsi: libiscsi: fix shifting of DID_REQUEUE host byte

John David Anglin (1):
parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels

Jonathan Basseri (1):
xfrm: Clear sk_dst_cache when applying per-socket policy.

Kazuya Mizuguchi (1):
usb: renesas_usbhs: Fix DMAC sequence for receiving zero-length packet

Kevin Cernekee (4):
brcmfmac: Add check for short event packets
netfilter: nfnetlink_cthelper: Add missing permission checks
netlink: Add netns check on taps
netfilter: xt_osf: Add missing permission checks

Kirill A. Shutemov (1):
mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d()

Konstantin Khlebnikov (2):
net_sched: always reset qdisc backlog in qdisc_reset()
Smack: remove unneeded NULL-termination from securtity label

LEROY Christophe (2):
crypto: talitos - fix sha224
crypto: talitos - Don't provide setkey for non hmac hashing algs.

Lauro Ramos Venancio (1):
sched/topology: Optimize build_group_mask()

Li Bin (1):
workqueue: Fix NULL pointer dereference

Luca Coelho (1):
iwlwifi: mvm: use IWL_HCMD_NOCOPY for MCAST_FILTER_CMD

Lukas Wunner (1):
iio: adc: mcp320x: Fix oops on module unload

Maksim Salau (1):
usb: cdc_acm: Add quirk for Elatec TWN3

Marc Zyngier (1):
arm64: Make sure SPsel is always set

Marek Szyprowski (1):
iommu/exynos: Remove initconst attribute to avoid potential kernel oops

Mark Rutland (3):
arm64: fix dump_instr when PAN and UAO are in use
arm64: ensure __dump_instr() checks addr_limit
ARM: 8720/1: ensure dump_instr() checks addr_limit

Martin K. Petersen (1):
scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP

Mathias Nyman (2):
xhci: fix finding correct bus_state structure for USB 3.1 hosts
usb: hub: Allow reset retry for USB2 devices on connect bounce

Matt Bennett (1):
ip6_gre: Reduce log level in ip6gre_err() to debug

Matt Fornero (1):
iio: core: Return error for failed read_reg

Matthew Wilcox (1):
fs/mpage.c: fix mpage_writepage() for pages with buffers

Mayank Rana (1):
usb: xhci: Handle error condition in xhci_stop_device()

Michael S. Tsirkin (1):
macvtap: fix TUNSETSNDBUF values > 64k

Miklos Szeredi (1):
fuse: fix READDIRPLUS skipping an entry

Mohamed Ghannam (1):
dccp: CVE-2017-8824: use-after-free in DCCP code

Nicolai Stange (1):
PCI: Fix race condition with driver_override

Nicolas Dichtel (1):
net: enable interface alias removal via rtnl

Oleg Nesterov (1):
ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock

Omar Sandoval (1):
Btrfs: fix incorrect {node,sector}size endianness from BTRFS_IOC_FS_INFO

Oswald Buddenhagen (1):
MIPS: AR7: Ensure that serial ports are properly set up

Paolo Abeni (4):
ipv4: fix broadcast packets reception
IPv4: early demux can return an error code
udp: perform source validation for mcast early demux
udp: fix bcast packet reception

Paul Burton (1):
MIPS: Fix CM region target definitions

Peng Xu (1):
nl80211: Define policy for packet pattern attributes

Peter Zijlstra (3):
x86/uaccess, sched/preempt: Verify access_ok() context
sched/topology: Remove FORCE_SD_OVERLAP
sched/topology: Simplify build_overlap_sched_groups()

Ravi Bangoria (1):
powerpc/sysrq: Fix oops whem ppmu is not registered

Ricard Wanderlof (1):
ASoC: adau17x1: Workaround for noise bug in ADC

Richard Schütz (1):
can: c_can: don't indicate triple sampling support for D_CAN

Ronnie Sahlberg (1):
cifs: check rsp for NULL before dereferencing in SMB2_open

Sabrina Dubroca (1):
l2tp: fix race condition in l2tp_tunnel_delete

Sekhar Nori (1):
ARM: dts: da850-evm: add serial and ethernet aliases

Shrirang Bagul (1):
USB: serial: qcserial: add Dell DW5818, DW5819

Shu Wang (2):
cifs: release cifs root_cred after exit_cifs
cifs: release auth_key.response for reconnect.

Stefan Mätje (1):
can: esd_usb2: Fix can_dlc value for received RTR, frames

Stefan Popa (1):
staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.

Stefano Brivio (1):
scsi: lpfc: Don't return internal MBXERR_ERROR code from probe function

Steffen Maier (1):
scsi: zfcp: fix erp_action use-before-initialize in REC action trace

Steve French (3):
SMB: Validate negotiate (to protect against downgrade) even if signing off
SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
SMB3: Validate negotiate request must always be signed

Tahsin Erdogan (1):
tracing: Fix trace_pipe behavior for instance traces

Takashi Iwai (10):
ALSA: usx2y: Suppress kernel warning at page allocation failures
ALSA: seq: Fix copy_from_user() call inside lock
ALSA: caiaq: Fix stray URB at probe error path
ALSA: hda: Remove superfluous '-' added by printk conversion
ALSA: timer: Add missing mutex lock for compat ioctls
ALSA: seq: Fix nested rwsem annotation for lockdep splat
ALSA: timer: Protect the whole snd_timer_close() with open race
ALSA: timer: Limit max instances per timer
ALSA: seq: Avoid invalid lockdep class warning
ALSA: seq: Fix OSS sysex delivery in OSS emulation

Tejun Heo (1):
workqueue: replace pool->manager_arb mutex with a flag

Tyrel Datwyler (1):
powerpc/pseries: Fix parent_dn reference leak in add_dt_node()

Wanpeng Li (1):
KVM: Fix stack-out-of-bounds read in write_mmio

Will Deacon (1):
arm64: fault: Route pte translation faults via do_translation_fault

Willem de Bruijn (1):
packet: only test po->has_vnet_hdr once in packet_snd

Wolfgang Grandegger (1):
can: gs_usb: fix busy loop if no more TX context is available

Xin Long (4):
ip6_gre: skb_push ipv6hdr before packing the header in ip6gre_header
sctp: add the missing sock_owned_by_user check in sctp_icmp_redirect
ip6_gre: only increase err_count for some certain type icmpv6 in ip6gre_err
sctp: fix a type cast warnings that causes a_rwnd gets the wrong value

YASUAKI ISHIMATSU (2):
mm/memory_hotplug: change pfn_to_section_nr/section_nr_to_pfn macro to inline function
mm/memory_hotplug: define find_{smallest|biggest}_section_pfn as unsigned long

Yazen Ghannam (1):
x86/amd_nb: Add Fam17h Data Fabric as "Northbridge"

Ye Yin (1):
netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed

Yoshihiro Shimoda (2):
usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction

satoru takeuchi (1):
btrfs: prevent to set invalid default subvolid

diff --git a/Makefile b/Makefile
index fc9df28cecf1..5cf074eb43ed 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 16
-SUBLEVEL = 51
+SUBLEVEL = 52
EXTRAVERSION =
NAME = Museum of Fishiegoodies

diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 86d835157b54..292e6cae1d10 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -281,7 +281,7 @@ long arch_ptrace(struct task_struct *child, long request,
/* When I and D space are separate, these will need to be fixed. */
case PTRACE_PEEKTEXT: /* read word at location addr. */
case PTRACE_PEEKDATA:
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+ copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp), 0);
ret = -EIO;
if (copied != sizeof(tmp))
break;
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 21342ab78ff5..c2f242d122f0 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -14,6 +14,13 @@
compatible = "ti,da850-evm", "ti,da850";
model = "DA850/AM1808/OMAP-L138 EVM";

+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ ethernet0 = &eth0;
+ };
+
soc {
pmx_core: pinmux@1c14120 {
status = "okay";
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index f5a357601983..4d9849d22357 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -36,4 +36,3 @@ generic-y += termbits.h
generic-y += termios.h
generic-y += timex.h
generic-y += trace_clock.h
-generic-y += unaligned.h
diff --git a/arch/arm/include/asm/unaligned.h b/arch/arm/include/asm/unaligned.h
new file mode 100644
index 000000000000..ab905ffcf193
--- /dev/null
+++ b/arch/arm/include/asm/unaligned.h
@@ -0,0 +1,27 @@
+#ifndef __ASM_ARM_UNALIGNED_H
+#define __ASM_ARM_UNALIGNED_H
+
+/*
+ * We generally want to set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS on ARMv6+,
+ * but we don't want to use linux/unaligned/access_ok.h since that can lead
+ * to traps on unaligned stm/ldm or strd/ldrd.
+ */
+#include <asm/byteorder.h>
+
+#if defined(__LITTLE_ENDIAN)
+# include <linux/unaligned/le_struct.h>
+# include <linux/unaligned/be_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned __get_unaligned_le
+# define put_unaligned __put_unaligned_le
+#elif defined(__BIG_ENDIAN)
+# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/le_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned __get_unaligned_be
+# define put_unaligned __put_unaligned_be
+#else
+# error need to define endianess
+#endif
+
+#endif /* __ASM_ARM_UNALIGNED_H */
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 8dffc57a9f71..cba3cb0b1a47 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -129,30 +129,26 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,
set_fs(fs);
}

-static void dump_instr(const char *lvl, struct pt_regs *regs)
+static void __dump_instr(const char *lvl, struct pt_regs *regs)
{
unsigned long addr = instruction_pointer(regs);
const int thumb = thumb_mode(regs);
const int width = thumb ? 4 : 8;
- mm_segment_t fs;
char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
int i;

/*
- * We need to switch to kernel mode so that we can use __get_user
- * to safely read from kernel space. Note that we now dump the
- * code first, just in case the backtrace kills us.
+ * Note that we now dump the code first, just in case the backtrace
+ * kills us.
*/
- fs = get_fs();
- set_fs(KERNEL_DS);

for (i = -4; i < 1 + !!thumb; i++) {
unsigned int val, bad;

if (thumb)
- bad = __get_user(val, &((u16 *)addr)[i]);
+ bad = get_user(val, &((u16 *)addr)[i]);
else
- bad = __get_user(val, &((u32 *)addr)[i]);
+ bad = get_user(val, &((u32 *)addr)[i]);

if (!bad)
p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ",
@@ -163,8 +159,20 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
}
}
printk("%sCode: %s\n", lvl, str);
+}

- set_fs(fs);
+static void dump_instr(const char *lvl, struct pt_regs *regs)
+{
+ mm_segment_t fs;
+
+ if (!user_mode(regs)) {
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+ __dump_instr(lvl, regs);
+ set_fs(fs);
+ } else {
+ __dump_instr(lvl, regs);
+ }
}

#ifdef CONFIG_ARM_UNWIND
diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
index d6c005283678..ef0a11f8a9d1 100644
--- a/arch/arm/kvm/emulate.c
+++ b/arch/arm/kvm/emulate.c
@@ -295,7 +295,7 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu)
u32 return_offset = (is_thumb) ? 2 : 4;

new_spsr_value = cpsr;
- new_lr_value = *vcpu_pc(vcpu) - return_offset;
+ new_lr_value = *vcpu_pc(vcpu) + return_offset;

*vcpu_cpsr(vcpu) = (cpsr & ~MODE_MASK) | UND_MODE;
*vcpu_cpsr(vcpu) |= PSR_I_BIT;
@@ -324,9 +324,8 @@ static void inject_abt(struct kvm_vcpu *vcpu, bool is_pabt, unsigned long addr)
unsigned long new_spsr_value;
unsigned long cpsr = *vcpu_cpsr(vcpu);
u32 sctlr = vcpu->arch.cp15[c1_SCTLR];
- bool is_thumb = (cpsr & PSR_T_BIT);
u32 vect_offset;
- u32 return_offset = (is_thumb) ? 4 : 0;
+ u32 return_offset = (is_pabt) ? 4 : 8;
bool is_lpae;

new_spsr_value = cpsr;
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 4cb5a93182e9..c47f108c2b8a 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -113,7 +113,7 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
}

trace_kvm_mmio(KVM_TRACE_MMIO_READ, len, run->mmio.phys_addr,
- data);
+ &data);
data = vcpu_data_host_to_guest(vcpu, data, len);
*vcpu_reg(vcpu, vcpu->arch.mmio_decode.rt) = data;
}
@@ -192,7 +192,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
trace_kvm_mmio((mmio.is_write) ? KVM_TRACE_MMIO_WRITE :
KVM_TRACE_MMIO_READ_UNSATISFIED,
mmio.len, fault_ipa,
- (mmio.is_write) ? data : 0);
+ (mmio.is_write) ? &data : NULL);

if (mmio.is_write)
mmio_write_buf(mmio.data, mmio.len, data);
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index cb83c1aabae8..d15ed089bb83 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -269,6 +269,7 @@ ENDPROC(stext)
* booted in EL1 or EL2 respectively.
*/
ENTRY(el2_setup)
+ msr SPsel, #1 // We want to use SP_EL{1,2}
mrs x0, CurrentEL
cmp x0, #CurrentEL_EL2
b.ne 1f
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index c1c2ad6a1c94..ec1e323060e0 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -59,8 +59,7 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,

/*
* We need to switch to kernel mode so that we can use __get_user
- * to safely read from kernel space. Note that we now dump the
- * code first, just in case the backtrace kills us.
+ * to safely read from kernel space.
*/
fs = get_fs();
set_fs(KERNEL_DS);
@@ -97,25 +96,16 @@ static void dump_backtrace_entry(unsigned long where, unsigned long stack)
stack + sizeof(struct pt_regs));
}

-static void dump_instr(const char *lvl, struct pt_regs *regs)
+static void __dump_instr(const char *lvl, struct pt_regs *regs)
{
unsigned long addr = instruction_pointer(regs);
- mm_segment_t fs;
char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
int i;

- /*
- * We need to switch to kernel mode so that we can use __get_user
- * to safely read from kernel space. Note that we now dump the
- * code first, just in case the backtrace kills us.
- */
- fs = get_fs();
- set_fs(KERNEL_DS);
-
for (i = -4; i < 1; i++) {
unsigned int val, bad;

- bad = __get_user(val, &((u32 *)addr)[i]);
+ bad = get_user(val, &((u32 *)addr)[i]);

if (!bad)
p += sprintf(p, i == 0 ? "(%08x) " : "%08x ", val);
@@ -125,8 +115,18 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
}
}
printk("%sCode: %s\n", lvl, str);
+}

- set_fs(fs);
+static void dump_instr(const char *lvl, struct pt_regs *regs)
+{
+ if (!user_mode(regs)) {
+ mm_segment_t fs = get_fs();
+ set_fs(KERNEL_DS);
+ __dump_instr(lvl, regs);
+ set_fs(fs);
+ } else {
+ __dump_instr(lvl, regs);
+ }
}

static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index f527a37ac979..595d311affe8 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -29,12 +29,26 @@
PSR_I_BIT | PSR_D_BIT)
#define EL1_EXCEPT_SYNC_OFFSET 0x200

+/*
+ * Table taken from ARMv8 ARM DDI0487B-B, table G1-10.
+ */
+static const u8 return_offsets[8][2] = {
+ [0] = { 0, 0 }, /* Reset, unused */
+ [1] = { 4, 2 }, /* Undefined */
+ [2] = { 0, 0 }, /* SVC, unused */
+ [3] = { 4, 4 }, /* Prefetch abort */
+ [4] = { 8, 8 }, /* Data abort */
+ [5] = { 0, 0 }, /* HVC, unused */
+ [6] = { 4, 4 }, /* IRQ, unused */
+ [7] = { 4, 4 }, /* FIQ, unused */
+};
+
static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset)
{
unsigned long cpsr;
unsigned long new_spsr_value = *vcpu_cpsr(vcpu);
bool is_thumb = (new_spsr_value & COMPAT_PSR_T_BIT);
- u32 return_offset = (is_thumb) ? 4 : 0;
+ u32 return_offset = return_offsets[vect_offset >> 2][is_thumb];
u32 sctlr = vcpu_cp15(vcpu, c1_SCTLR);

cpsr = mode | COMPAT_PSR_I_BIT;
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 8fd2315bdf4d..ca1b882bc9e1 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -386,7 +386,7 @@ static struct fault_info {
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "input address range fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 1 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 2 translation fault" },
- { do_page_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
+ { do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
{ do_bad, SIGBUS, 0, "reserved access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 access flag fault" },
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 8b8fe671b1a6..7d8ece6a93fb 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -270,7 +270,7 @@ long arch_ptrace(struct task_struct *child, long request,
switch (bfin_mem_access_type(addr, to_copy)) {
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
- copied = access_process_vm(child, addr, &tmp,
+ copied = ptrace_access_vm(child, addr, &tmp,
to_copy, 0);
if (copied)
break;
@@ -323,7 +323,7 @@ long arch_ptrace(struct task_struct *child, long request,
switch (bfin_mem_access_type(addr, to_copy)) {
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
- copied = access_process_vm(child, addr, &data,
+ copied = ptrace_access_vm(child, addr, &data,
to_copy, 1);
break;
case BFIN_MEM_ACCESS_DMA:
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index f085229cf870..04251c6cb5f9 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -147,7 +147,7 @@ long arch_ptrace(struct task_struct *child, long request,
/* The trampoline page is globally mapped, no page table to traverse.*/
tmp = *(unsigned long*)addr;
} else {
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+ copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp), 0);

if (copied != sizeof(tmp))
break;
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index b7a5fffe0924..c218249c4792 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1156,7 +1156,7 @@ arch_ptrace (struct task_struct *child, long request,
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
/* read word at location addr */
- if (access_process_vm(child, addr, &data, sizeof(data), 0)
+ if (ptrace_access_vm(child, addr, &data, sizeof(data), 0)
!= sizeof(data))
return -EIO;
/* ensure return value is not mistaken for error code */
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 7e2356fd5fd6..e4f47d3e55bb 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -581,6 +581,7 @@ static int __init ar7_register_uarts(void)
uart_port.type = PORT_AR7;
uart_port.uartclk = clk_get_rate(bus_clk) / 2;
uart_port.iotype = UPIO_MEM32;
+ uart_port.flags = UPF_FIXED_TYPE;
uart_port.regshift = 2;

uart_port.line = 0;
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index 6a9d2dd005ca..79c882be9d17 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -173,8 +173,8 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_BASE_GCRBASE_MSK (_ULCAST_(0x1ffff) << 15)
#define CM_GCR_BASE_CMDEFTGT_SHF 0
#define CM_GCR_BASE_CMDEFTGT_MSK (_ULCAST_(0x3) << 0)
-#define CM_GCR_BASE_CMDEFTGT_DISABLED 0
-#define CM_GCR_BASE_CMDEFTGT_MEM 1
+#define CM_GCR_BASE_CMDEFTGT_MEM 0
+#define CM_GCR_BASE_CMDEFTGT_RESERVED 1
#define CM_GCR_BASE_CMDEFTGT_IOCU0 2
#define CM_GCR_BASE_CMDEFTGT_IOCU1 3

diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index a83fb730b387..fdd26c104c6c 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -69,7 +69,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
break;

- copied = access_process_vm(child, (u64)addrOthers, &tmp,
+ copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp), 0);
if (copied != sizeof(tmp))
break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
break;
ret = 0;
- if (access_process_vm(child, (u64)addrOthers, &data,
+ if (ptrace_access_vm(child, (u64)addrOthers, &data,
sizeof(data), 1) == sizeof(data))
break;
ret = -EIO;
diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index 8399ddf03a02..cab124e0572d 100644
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -83,7 +83,7 @@ static struct insn insn_table_MM[] = {
{ insn_jr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS },
{ insn_lb, M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
{ insn_ld, 0, 0 },
- { insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM },
+ { insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
{ insn_ll, M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM },
{ insn_lld, 0, 0 },
{ insn_lui, M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM },
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f716e9e65a49..df6ff75c03ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -742,7 +742,7 @@ ENTRY(linux_gateway_page)
10: ldd 0(%sr3,%r25), %r25
11: ldd 0(%sr3,%r24), %r24
#else
- /* Load new value into r22/r23 - high/low */
+ /* Load old value into r22/r23 - high/low */
10: ldw 0(%sr3,%r25), %r22
11: ldw 4(%sr3,%r25), %r23
/* Load new value into fr4 for atomic store later */
@@ -834,11 +834,11 @@ ENTRY(linux_gateway_page)
copy %r0, %r28
#else
/* Compare first word */
-19: ldw,ma 0(%sr3,%r26), %r29
+19: ldw 0(%sr3,%r26), %r29
sub,= %r29, %r22, %r0
b,n cas2_end
/* Compare second word */
-20: ldw,ma 4(%sr3,%r26), %r29
+20: ldw 4(%sr3,%r26), %r29
sub,= %r29, %r23, %r0
b,n cas2_end
/* Perform the store */
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index f52b7db327c8..2e4f01dc9d64 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -73,7 +73,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
break;

- copied = access_process_vm(child, (u64)addrOthers, &tmp,
+ copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp), 0);
if (copied != sizeof(tmp))
break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
break;
ret = 0;
- if (access_process_vm(child, (u64)addrOthers, &tmp,
+ if (ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp), 1) == sizeof(tmp))
break;
ret = -EIO;
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 97579de6853b..6b989c2d6e31 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -755,6 +755,11 @@ void perf_event_print_debug(void)
u32 pmcs[MAX_HWEVENTS];
int i;

+ if (!ppmu) {
+ pr_info("Performance monitor hardware not registered.\n");
+ return;
+ }
+
if (!ppmu->n_counter)
return;

diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index c70762e0daf1..eb4b07f3a505 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -224,8 +224,10 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
return -ENOENT;

dn = dlpar_configure_connector(drc_index, parent_dn);
- if (!dn)
+ if (!dn) {
+ of_node_put(parent_dn);
return -ENOENT;
+ }

rc = dlpar_attach_node(dn);
if (rc)
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 639fce464008..21e925e9845a 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -51,13 +51,12 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
{
- unsigned long mask, result;
struct page *head, *page, *tail;
+ unsigned long mask;
int refs;

- result = write ? 0 : _SEGMENT_ENTRY_PROTECT;
- mask = result | _SEGMENT_ENTRY_INVALID;
- if ((pmd_val(pmd) & mask) != result)
+ mask = (write ? _SEGMENT_ENTRY_PROTECT : 0) | _SEGMENT_ENTRY_INVALID;
+ if ((pmd_val(pmd) & mask) != 0)
return 0;
VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT));

diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7264.h b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
index 4d1ef6d74bd6..2ae0e938b657 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7264.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
@@ -43,9 +43,7 @@ enum {
GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,

- /* Port H */
- GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
- GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+ /* Port H - Port H does not have a Data Register */

/* Port I - not on device */

diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7269.h b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
index 2a0ca8780f0d..13c495a9fc00 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7269.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
@@ -45,9 +45,7 @@ enum {
GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,

- /* Port H */
- GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
- GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+ /* Port H - Port H does not have a Data Register */

/* Port I - not on device */

diff --git a/arch/sh/include/cpu-sh4/cpu/sh7722.h b/arch/sh/include/cpu-sh4/cpu/sh7722.h
index 3bb74e534d0f..78961ab78a5a 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7722.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7722.h
@@ -67,7 +67,7 @@ enum {
GPIO_PTN3, GPIO_PTN2, GPIO_PTN1, GPIO_PTN0,

/* PTQ */
- GPIO_PTQ7, GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
+ GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
GPIO_PTQ3, GPIO_PTQ2, GPIO_PTQ1, GPIO_PTQ0,

/* PTR */
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7757.h b/arch/sh/include/cpu-sh4/cpu/sh7757.h
index 5340f3bc1863..b40fb541e72a 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7757.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7757.h
@@ -40,7 +40,7 @@ enum {

/* PTJ */
GPIO_PTJ0, GPIO_PTJ1, GPIO_PTJ2, GPIO_PTJ3,
- GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6, GPIO_PTJ7_RESV,
+ GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6,

/* PTK */
GPIO_PTK0, GPIO_PTK1, GPIO_PTK2, GPIO_PTK3,
@@ -48,7 +48,7 @@ enum {

/* PTL */
GPIO_PTL0, GPIO_PTL1, GPIO_PTL2, GPIO_PTL3,
- GPIO_PTL4, GPIO_PTL5, GPIO_PTL6, GPIO_PTL7_RESV,
+ GPIO_PTL4, GPIO_PTL5, GPIO_PTL6,

/* PTM */
GPIO_PTM0, GPIO_PTM1, GPIO_PTM2, GPIO_PTM3,
@@ -56,7 +56,7 @@ enum {

/* PTN */
GPIO_PTN0, GPIO_PTN1, GPIO_PTN2, GPIO_PTN3,
- GPIO_PTN4, GPIO_PTN5, GPIO_PTN6, GPIO_PTN7_RESV,
+ GPIO_PTN4, GPIO_PTN5, GPIO_PTN6,

/* PTO */
GPIO_PTO0, GPIO_PTO1, GPIO_PTO2, GPIO_PTO3,
@@ -68,7 +68,7 @@ enum {

/* PTQ */
GPIO_PTQ0, GPIO_PTQ1, GPIO_PTQ2, GPIO_PTQ3,
- GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6, GPIO_PTQ7_RESV,
+ GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6,

/* PTR */
GPIO_PTR0, GPIO_PTR1, GPIO_PTR2, GPIO_PTR3,
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index d8a9df999da3..0ac4de510b42 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -139,7 +139,7 @@ static int __init setup_maxnodemem(char *str)
{
char *endp;
unsigned long long maxnodemem;
- long node;
+ unsigned long node;

node = str ? simple_strtoul(str, &endp, 0) : INT_MAX;
if (node >= MAX_NUMNODES || *endp != ':')
diff --git a/arch/x86/crypto/salsa20_glue.c b/arch/x86/crypto/salsa20_glue.c
index 399a29d067d6..cb91a64a99e7 100644
--- a/arch/x86/crypto/salsa20_glue.c
+++ b/arch/x86/crypto/salsa20_glue.c
@@ -59,13 +59,6 @@ static int encrypt(struct blkcipher_desc *desc,

salsa20_ivsetup(ctx, walk.iv);

- if (likely(walk.nbytes == nbytes))
- {
- salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
- walk.dst.virt.addr, nbytes);
- return blkcipher_walk_done(desc, &walk, 0);
- }
-
while (walk.nbytes >= 64) {
salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
walk.dst.virt.addr,
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 465504609869..887c0ea365a7 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -7,6 +7,7 @@
#include <linux/compiler.h>
#include <linux/thread_info.h>
#include <linux/string.h>
+#include <linux/preempt_mask.h>
#include <asm/asm.h>
#include <asm/page.h>
#include <asm/smap.h>
@@ -66,6 +67,12 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
__chk_range_not_ok((unsigned long __force)(addr), size, limit); \
})

+#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+# define WARN_ON_IN_IRQ() WARN_ON_ONCE(!in_task())
+#else
+# define WARN_ON_IN_IRQ()
+#endif
+
/**
* access_ok: - Checks if a user space pointer is valid
* @type: Type of access: %VERIFY_READ or %VERIFY_WRITE. Note that
@@ -85,8 +92,11 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
* checks that the pointer is in the user space range - after calling
* this function, memory access functions may still return -EFAULT.
*/
-#define access_ok(type, addr, size) \
- likely(!__range_not_ok(addr, size, user_addr_max()))
+#define access_ok(type, addr, size) \
+({ \
+ WARN_ON_IN_IRQ(); \
+ likely(!__range_not_ok(addr, size, user_addr_max())); \
+})

/*
* The exception table consists of pairs of addresses relative to the
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 29f0c55d6efc..3c9d268939af 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -13,16 +13,24 @@
#include <linux/spinlock.h>
#include <asm/amd_nb.h>

+#define PCI_DEVICE_ID_AMD_17H_DF_F3 0x1463
+#define PCI_DEVICE_ID_AMD_17H_DF_F4 0x1464
+
static u32 *flush_words;

+#define PCI_DEVICE_ID_AMD_CNB17H_F4 0x1704
+
const struct pci_device_id amd_nb_misc_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
{}
};
EXPORT_SYMBOL(amd_nb_misc_ids);
@@ -30,8 +38,11 @@ EXPORT_SYMBOL(amd_nb_misc_ids);
static const struct pci_device_id amd_nb_link_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F4) },
{}
};

@@ -278,6 +289,41 @@ void amd_flush_garts(void)
}
EXPORT_SYMBOL_GPL(amd_flush_garts);

+static void __fix_erratum_688(void *info)
+{
+#define MSR_AMD64_IC_CFG 0xC0011021
+
+ msr_set_bit(MSR_AMD64_IC_CFG, 3);
+ msr_set_bit(MSR_AMD64_IC_CFG, 14);
+}
+
+/* Apply erratum 688 fix so machines without a BIOS fix work. */
+static __init void fix_erratum_688(void)
+{
+ struct pci_dev *F4;
+ u32 val;
+
+ if (boot_cpu_data.x86 != 0x14)
+ return;
+
+ if (!amd_northbridges.num)
+ return;
+
+ F4 = node_to_amd_nb(0)->link;
+ if (!F4)
+ return;
+
+ if (pci_read_config_dword(F4, 0x164, &val))
+ return;
+
+ if (val & BIT(2))
+ return;
+
+ on_each_cpu(__fix_erratum_688, NULL, 0);
+
+ pr_info("x86/cpu/AMD: CPU erratum 688 worked around\n");
+}
+
static __init int init_amd_nbs(void)
{
int err = 0;
@@ -290,6 +336,8 @@ static __init int init_amd_nbs(void)
if (amd_cache_gart() < 0)
pr_notice("Cannot initialize GART flush words, GART support disabled\n");

+ fix_erratum_688();
+
return err;
}

diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index a276fa75d9b5..8eaa571cb5f6 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -267,6 +267,18 @@ static int get_ucode_fw(void *to, const void *from, size_t n)
return 0;
}

+static bool is_blacklisted(unsigned int cpu)
+{
+ struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+ if (c->x86 == 6 && c->x86_model == 0x4F) {
+ pr_err_once("late loading on model 79 is disabled.\n");
+ return true;
+ }
+
+ return false;
+}
+
static enum ucode_state request_microcode_fw(int cpu, struct device *device,
bool refresh_fw)
{
@@ -275,6 +287,9 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
const struct firmware *firmware;
enum ucode_state ret;

+ if (is_blacklisted(cpu))
+ return UCODE_NFOUND;
+
sprintf(name, "intel-ucode/%02x-%02x-%02x",
c->x86, c->x86_model, c->x86_mask);

@@ -299,6 +314,9 @@ static int get_ucode_user(void *to, const void *from, size_t n)
static enum ucode_state
request_microcode_user(int cpu, const void __user *buf, size_t size)
{
+ if (is_blacklisted(cpu))
+ return UCODE_NFOUND;
+
return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
}

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 50a1d48b1419..f9a6d8d68720 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8670,7 +8670,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
* (KVM doesn't change it)- no reason to call set_cr4_guest_host_mask();
*/
vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK);
- kvm_set_cr4(vcpu, vmcs12->host_cr4);
+ vmx_set_cr4(vcpu, vmcs12->host_cr4);

nested_ept_uninit_mmu_context(vcpu);

@@ -9029,12 +9029,7 @@ static int __init vmx_init(void)
memset(vmx_vmread_bitmap, 0xff, PAGE_SIZE);
memset(vmx_vmwrite_bitmap, 0xff, PAGE_SIZE);

- /*
- * Allow direct access to the PC debug port (it is often used for I/O
- * delays, but the vmexits simply slow things down).
- */
memset(vmx_io_bitmap_a, 0xff, PAGE_SIZE);
- clear_bit(0x80, vmx_io_bitmap_a);

memset(vmx_io_bitmap_b, 0xff, PAGE_SIZE);

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 77edfa6d0b54..2d7ccb5a2bdd 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4052,7 +4052,7 @@ static int vcpu_mmio_read(struct kvm_vcpu *vcpu, gpa_t addr, int len, void *v)
!kvm_iodevice_read(&vcpu->arch.apic->dev, addr, n, v))
&& kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, addr, n, v))
break;
- trace_kvm_mmio(KVM_TRACE_MMIO_READ, n, addr, *(u64 *)v);
+ trace_kvm_mmio(KVM_TRACE_MMIO_READ, n, addr, v);
handled += n;
addr += n;
len -= n;
@@ -4276,7 +4276,7 @@ static int read_prepare(struct kvm_vcpu *vcpu, void *val, int bytes)
{
if (vcpu->mmio_read_completed) {
trace_kvm_mmio(KVM_TRACE_MMIO_READ, bytes,
- vcpu->mmio_fragments[0].gpa, *(u64 *)val);
+ vcpu->mmio_fragments[0].gpa, val);
vcpu->mmio_read_completed = 0;
return 1;
}
@@ -4298,14 +4298,14 @@ static int write_emulate(struct kvm_vcpu *vcpu, gpa_t gpa,

static int write_mmio(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes, void *val)
{
- trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, bytes, gpa, *(u64 *)val);
+ trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, bytes, gpa, val);
return vcpu_mmio_write(vcpu, gpa, bytes, val);
}

static int read_exit_mmio(struct kvm_vcpu *vcpu, gpa_t gpa,
void *val, int bytes)
{
- trace_kvm_mmio(KVM_TRACE_MMIO_READ_UNSATISFIED, bytes, gpa, 0);
+ trace_kvm_mmio(KVM_TRACE_MMIO_READ_UNSATISFIED, bytes, gpa, NULL);
return X86EMUL_IO_NEEDED;
}

diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index d90528ea5412..12c051d19e4b 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -212,8 +212,8 @@ static void arch_perfmon_setup_counters(void)
eax.full = cpuid_eax(0xa);

/* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */
- if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 &&
- __this_cpu_read(cpu_info.x86_model) == 15) {
+ if (eax.split.version_id == 0 && boot_cpu_data.x86 == 6 &&
+ boot_cpu_data.x86_model == 15) {
eax.split.version_id = 2;
eax.split.num_counters = 2;
eax.split.bit_width = 40;
diff --git a/block/bio.c b/block/bio.c
index dcc6365bcc11..4218dab2bb47 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1286,6 +1286,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
struct bio *bio;
int cur_page = 0;
int ret, offset;
+ struct bio_vec *bvec;

for (i = 0; i < iov_count; i++) {
unsigned long uaddr = (unsigned long)iov[i].iov_base;
@@ -1329,7 +1330,12 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,

ret = get_user_pages_fast(uaddr, local_nr_pages,
write_to_vm, &pages[cur_page]);
- if (ret < local_nr_pages) {
+ if (unlikely(ret < local_nr_pages)) {
+ for (j = cur_page; j < page_limit; j++) {
+ if (!pages[j])
+ break;
+ put_page(pages[j]);
+ }
ret = -EFAULT;
goto out_unmap;
}
@@ -1384,10 +1390,8 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
return bio;

out_unmap:
- for (i = 0; i < nr_pages; i++) {
- if(!pages[i])
- break;
- page_cache_release(pages[i]);
+ bio_for_each_segment_all(bvec, bio, j) {
+ put_page(bvec->bv_page);
}
out:
kfree(pages);
diff --git a/crypto/hmac.c b/crypto/hmac.c
index ade790b454e9..758688b4bc6b 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -197,11 +197,15 @@ static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
salg = shash_attr_alg(tb[1], 0, 0);
if (IS_ERR(salg))
return PTR_ERR(salg);
+ alg = &salg->base;

+ /* The underlying hash algorithm must be unkeyed */
err = -EINVAL;
+ if (crypto_shash_alg_has_setkey(salg))
+ goto out_put_alg;
+
ds = salg->digestsize;
ss = salg->statesize;
- alg = &salg->base;
if (ds > alg->cra_blocksize ||
ss < alg->cra_blocksize)
goto out_put_alg;
diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c
index f550b5d94630..d7da0eea5622 100644
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -188,13 +188,6 @@ static int encrypt(struct blkcipher_desc *desc,

salsa20_ivsetup(ctx, walk.iv);

- if (likely(walk.nbytes == nbytes))
- {
- salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
- walk.src.virt.addr, nbytes);
- return blkcipher_walk_done(desc, &walk, 0);
- }
-
while (walk.nbytes >= 64) {
salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
walk.src.virt.addr,
diff --git a/crypto/shash.c b/crypto/shash.c
index 03fbcd4a82c4..73c065321867 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -24,11 +24,12 @@

static const struct crypto_type crypto_shash_type;

-static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
- unsigned int keylen)
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen)
{
return -ENOSYS;
}
+EXPORT_SYMBOL_GPL(shash_no_setkey);

static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
unsigned int keylen)
@@ -274,12 +275,14 @@ static int shash_async_finup(struct ahash_request *req)

int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
{
- struct scatterlist *sg = req->src;
- unsigned int offset = sg->offset;
unsigned int nbytes = req->nbytes;
+ struct scatterlist *sg;
+ unsigned int offset;
int err;

- if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
+ if (nbytes &&
+ (sg = req->src, offset = sg->offset,
+ nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) {
void *data;

data = kmap_atomic(sg_page(sg));
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6eea35b05f6a..d1c04f0f79b6 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2584,7 +2584,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
* from the parent.
*/
page_count = (u32)calc_pages_for(0, length);
- pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+ pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
if (IS_ERR(pages)) {
result = PTR_ERR(pages);
pages = NULL;
@@ -2711,7 +2711,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request)
*/
size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32);
page_count = (u32)calc_pages_for(0, size);
- pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+ pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
if (IS_ERR(pages))
return PTR_ERR(pages);

diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index d29f5ffdb0f4..d729c1cc7542 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -523,7 +523,7 @@ mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
if (mbus->hw_io_coherency)
w->mbus_attr |= ATTR_HW_COHERENCY;
w->base = base & DDR_BASE_CS_LOW_MASK;
- w->size = (size | ~DDR_SIZE_MASK) + 1;
+ w->size = (u64)(size | ~DDR_SIZE_MASK) + 1;
}
}
mvebu_mbus_dram_info.num_cs = cs;
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index c6bd28c59d65..0d3f3af79bde 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1581,9 +1581,9 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
req_ctx->swinit = 0;
} else {
desc->ptr[1] = zero_entry;
- /* Indicate next op is not the first. */
- req_ctx->first = 0;
}
+ /* Indicate next op is not the first. */
+ req_ctx->first = 0;

/* HMAC key */
if (ctx->keylen)
@@ -2550,7 +2550,8 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
t_alg->algt.alg.hash.final = ahash_final;
t_alg->algt.alg.hash.finup = ahash_finup;
t_alg->algt.alg.hash.digest = ahash_digest;
- t_alg->algt.alg.hash.setkey = ahash_setkey;
+ if (!strncmp(alg->cra_name, "hmac", 4))
+ t_alg->algt.alg.hash.setkey = ahash_setkey;

if (!(priv->features & TALITOS_FTR_HMAC_OK) &&
!strncmp(alg->cra_name, "hmac", 4)) {
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 86608585ec00..5b38f5aede59 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -130,7 +130,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,

if (pin <= 255) {
char ev_name[5];
- sprintf(ev_name, "_%c%02X",
+ sprintf(ev_name, "_%c%02hhX",
agpio->triggering == ACPI_EDGE_SENSITIVE ? 'E' : 'L',
pin);
if (ACPI_SUCCESS(acpi_get_handle(handle, ev_name, &evt_handle)))
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 07d72573fc60..e03526a10340 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -939,6 +939,13 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);

+ if (port == PORT_A && is_dvi) {
+ DRM_DEBUG_KMS("VBT claims port A supports DVI%s, ignoring\n",
+ is_hdmi ? "/HDMI" : "");
+ is_dvi = false;
+ is_hdmi = false;
+ }
+
info->supports_dvi = is_dvi;
info->supports_hdmi = is_hdmi;
info->supports_dp = is_dp;
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 23eebb7f31aa..149d1da033c0 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -526,7 +526,8 @@ static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
{
/* the worst case is computed from the set_report command with a
* reportID > 15 and the maximum report length */
- int args_len = sizeof(__u8) + /* optional ReportID byte */
+ int args_len = sizeof(__u8) + /* ReportID */
+ sizeof(__u8) + /* optional ReportID byte */
sizeof(__u16) + /* data register */
sizeof(__u16) + /* size of the report */
report_size; /* report */
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 5da07546e182..05ab5ad07df1 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -257,7 +257,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
unsigned int vref_mv)
{
struct ad7793_state *st = iio_priv(indio_dev);
- int i, ret = -1;
+ int i, ret;
unsigned long long scale_uv;
u32 id;

@@ -266,7 +266,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
return ret;

/* reset the serial interface */
- ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
+ ret = ad_sd_reset(&st->sd, 32);
if (ret < 0)
goto out;
usleep_range(500, 2000); /* Wait for at least 500us */
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index eb799a43aef0..dbcea7941059 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -177,6 +177,34 @@ int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta,
}
EXPORT_SYMBOL_GPL(ad_sd_read_reg);

+/**
+ * ad_sd_reset() - Reset the serial interface
+ *
+ * @sigma_delta: The sigma delta device
+ * @reset_length: Number of SCLKs with DIN = 1
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+ unsigned int reset_length)
+{
+ uint8_t *buf;
+ unsigned int size;
+ int ret;
+
+ size = DIV_ROUND_UP(reset_length, 8);
+ buf = kcalloc(size, sizeof(*buf), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ memset(buf, 0xff, size);
+ ret = spi_write(sigma_delta->spi, buf, size);
+ kfree(buf);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_reset);
+
static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
unsigned int mode, unsigned int channel)
{
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index 28a086e48776..662c930fb1c3 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -180,6 +180,7 @@ static int mcp320x_probe(struct spi_device *spi)
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &mcp320x_info;
+ spi_set_drvdata(spi, indio_dev);

chip_info = &mcp3208_chip_infos[spi_get_device_id(spi)->driver_data];
indio_dev->channels = chip_info->channels;
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index c6b0f1503366..4d1b400ed260 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -184,8 +184,10 @@ static ssize_t iio_debugfs_read_reg(struct file *file, char __user *userbuf,
ret = indio_dev->info->debugfs_reg_access(indio_dev,
indio_dev->cached_reg_addr,
0, &val);
- if (ret)
+ if (ret) {
dev_err(indio_dev->dev.parent, "%s: read failed\n", __func__);
+ return ret;
+ }

len = snprintf(buf, sizeof(buf), "0x%X\n", val);

diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c
index deff377934ff..474bcafe0684 100644
--- a/drivers/infiniband/hw/mlx5/mem.c
+++ b/drivers/infiniband/hw/mlx5/mem.c
@@ -46,46 +46,33 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
{
unsigned long tmp;
unsigned long m;
- int i, k;
- u64 base = 0;
- int p = 0;
- int skip;
- int mask;
- u64 len;
- u64 pfn;
+ u64 base = ~0, p = 0;
+ u64 len, pfn;
+ int i = 0;
struct scatterlist *sg;
int entry;

addr = addr >> PAGE_SHIFT;
tmp = (unsigned long)addr;
- m = find_first_bit(&tmp, sizeof(tmp));
- skip = 1 << m;
- mask = skip - 1;
- i = 0;
+ m = find_first_bit(&tmp, BITS_PER_LONG);
+
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
len = sg_dma_len(sg) >> PAGE_SHIFT;
pfn = sg_dma_address(sg) >> PAGE_SHIFT;
- for (k = 0; k < len; k++) {
- if (!(i & mask)) {
- tmp = (unsigned long)pfn;
- m = min_t(unsigned long, m, find_first_bit(&tmp, sizeof(tmp)));
- skip = 1 << m;
- mask = skip - 1;
- base = pfn;
- p = 0;
- } else {
- if (base + p != pfn) {
- tmp = (unsigned long)p;
- m = find_first_bit(&tmp, sizeof(tmp));
- skip = 1 << m;
- mask = skip - 1;
- base = pfn;
- p = 0;
- }
- }
- p++;
- i++;
+ if (base + p != pfn) {
+ /* If either the offset or the new
+ * base are unaligned update m
+ */
+ tmp = (unsigned long)(pfn | p);
+ if (!IS_ALIGNED(tmp, 1 << m))
+ m = find_first_bit(&tmp, BITS_PER_LONG);
+
+ base = pfn;
+ p = 0;
}
+
+ p += len;
+ i += len;
}

if (i) {
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index 3bbf2010a821..e682c79c41c1 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -235,7 +235,10 @@ static int ocrdma_get_mbx_errno(u32 status)
case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES:
err_num = -EAGAIN;
break;
+ default:
+ err_num = -EFAULT;
}
+ break;
default:
err_num = -EFAULT;
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 27fe62e2fd95..fcbfdda0e585 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -961,19 +961,6 @@ static inline int update_parent_pkey(struct ipoib_dev_priv *priv)
*/
priv->dev->broadcast[8] = priv->pkey >> 8;
priv->dev->broadcast[9] = priv->pkey & 0xff;
-
- /*
- * Update the broadcast address in the priv->broadcast object,
- * in case it already exists, otherwise no one will do that.
- */
- if (priv->broadcast) {
- spin_lock_irq(&priv->lock);
- memcpy(priv->broadcast->mcmember.mgid.raw,
- priv->dev->broadcast + 4,
- sizeof(union ib_gid));
- spin_unlock_irq(&priv->lock);
- }
-
return 0;
}

diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index f50f6dd92274..b0e2de131b76 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -239,9 +239,15 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
EXPORT_SYMBOL_GPL(input_ff_erase);

/*
- * flush_effects - erase all effects owned by a file handle
+ * input_ff_flush - erase all effects owned by a file handle
+ * @dev: input device to erase effect from
+ * @file: purported owner of the effects
+ *
+ * This function erases all force-feedback effects associated with
+ * the given owner from specified device. Note that @file may be %NULL,
+ * in which case all effects will be erased.
*/
-static int flush_effects(struct input_dev *dev, struct file *file)
+int input_ff_flush(struct input_dev *dev, struct file *file)
{
struct ff_device *ff = dev->ff;
int i;
@@ -257,6 +263,7 @@ static int flush_effects(struct input_dev *dev, struct file *file)

return 0;
}
+EXPORT_SYMBOL_GPL(input_ff_flush);

/**
* input_ff_event() - generic handler for force-feedback events
@@ -340,7 +347,7 @@ int input_ff_create(struct input_dev *dev, unsigned int max_effects)
mutex_init(&ff->mutex);

dev->ff = ff;
- dev->flush = flush_effects;
+ dev->flush = input_ff_flush;
dev->event = input_ff_event;
__set_bit(EV_FF, dev->evbit);

diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index f19375acfeec..ea8c48a9e09d 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1635,13 +1635,25 @@ ims_pcu_get_cdc_union_desc(struct usb_interface *intf)
return NULL;
}

- while (buflen > 0) {
+ while (buflen >= sizeof(*union_desc)) {
union_desc = (struct usb_cdc_union_desc *)buf;

+ if (union_desc->bLength > buflen) {
+ dev_err(&intf->dev, "Too large descriptor\n");
+ return NULL;
+ }
+
if (union_desc->bDescriptorType == USB_DT_CS_INTERFACE &&
union_desc->bDescriptorSubType == USB_CDC_UNION_TYPE) {
dev_dbg(&intf->dev, "Found union header\n");
- return union_desc;
+
+ if (union_desc->bLength >= sizeof(*union_desc))
+ return union_desc;
+
+ dev_err(&intf->dev,
+ "Union descriptor to short (%d vs %zd\n)",
+ union_desc->bLength, sizeof(*union_desc));
+ return NULL;
}

buflen -= union_desc->bLength;
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 5a63c274ae1c..08cf73e92cb3 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -98,14 +98,15 @@ static int uinput_request_reserve_slot(struct uinput_device *udev,
uinput_request_alloc_id(udev, request));
}

-static void uinput_request_done(struct uinput_device *udev,
- struct uinput_request *request)
+static void uinput_request_release_slot(struct uinput_device *udev,
+ unsigned int id)
{
/* Mark slot as available */
- udev->requests[request->id] = NULL;
- wake_up(&udev->requests_waitq);
+ spin_lock(&udev->requests_lock);
+ udev->requests[id] = NULL;
+ spin_unlock(&udev->requests_lock);

- complete(&request->done);
+ wake_up(&udev->requests_waitq);
}

static int uinput_request_send(struct uinput_device *udev,
@@ -138,20 +139,22 @@ static int uinput_request_send(struct uinput_device *udev,
static int uinput_request_submit(struct uinput_device *udev,
struct uinput_request *request)
{
- int error;
+ int retval;

- error = uinput_request_reserve_slot(udev, request);
- if (error)
- return error;
+ retval = uinput_request_reserve_slot(udev, request);
+ if (retval)
+ return retval;

- error = uinput_request_send(udev, request);
- if (error) {
- uinput_request_done(udev, request);
- return error;
- }
+ retval = uinput_request_send(udev, request);
+ if (retval)
+ goto out;

wait_for_completion(&request->done);
- return request->retval;
+ retval = request->retval;
+
+ out:
+ uinput_request_release_slot(udev, request->id);
+ return retval;
}

/*
@@ -169,7 +172,7 @@ static void uinput_flush_requests(struct uinput_device *udev)
request = udev->requests[i];
if (request) {
request->retval = -ENODEV;
- uinput_request_done(udev, request);
+ complete(&request->done);
}
}

@@ -230,6 +233,18 @@ static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
return uinput_request_submit(udev, &request);
}

+static int uinput_dev_flush(struct input_dev *dev, struct file *file)
+{
+ /*
+ * If we are called with file == NULL that means we are tearing
+ * down the device, and therefore we can not handle FF erase
+ * requests: either we are handling UI_DEV_DESTROY (and holding
+ * the udev->mutex), or the file descriptor is closed and there is
+ * nobody on the other side anymore.
+ */
+ return file ? input_ff_flush(dev, file) : 0;
+}
+
static void uinput_destroy_device(struct uinput_device *udev)
{
const char *name, *phys;
@@ -273,6 +288,12 @@ static int uinput_create_device(struct uinput_device *udev)
dev->ff->playback = uinput_dev_playback;
dev->ff->set_gain = uinput_dev_set_gain;
dev->ff->set_autocenter = uinput_dev_set_autocenter;
+ /*
+ * The standard input_ff_flush() implementation does
+ * not quite work for uinput as we can't reasonably
+ * handle FF requests during device teardown.
+ */
+ dev->flush = uinput_dev_flush;
}

error = input_register_device(udev->dev);
@@ -840,7 +861,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
}

req->retval = ff_up.retval;
- uinput_request_done(udev, req);
+ complete(&req->done);
goto out;

case UI_END_FF_ERASE:
@@ -856,7 +877,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
}

req->retval = ff_erase.retval;
- uinput_request_done(udev, req);
+ complete(&req->done);
goto out;
}

diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 2ce649520fe0..092fa8b31c67 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -157,7 +157,7 @@ static void titsc_step_config(struct titsc *ts_dev)
break;
case 5:
config |= ts_dev->bit_xp | STEPCONFIG_INP_AN4 |
- ts_dev->bit_xn | ts_dev->bit_yp;
+ STEPCONFIG_XNP | STEPCONFIG_YPN;
break;
case 8:
config |= ts_dev->bit_yp | STEPCONFIG_INP(ts_dev->inp_xp);
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 07af55cc2dcc..353417c95502 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3440,6 +3440,7 @@ static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
mutex_unlock(&domain->api_lock);

domain_flush_tlb_pde(domain);
+ domain_flush_complete(domain);

return unmap_size;
}
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 99054d2c040d..e7434b1b1d62 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -676,7 +676,7 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev)
return 0;
}

-static const struct of_device_id sysmmu_of_match[] __initconst = {
+static const struct of_device_id sysmmu_of_match[] = {
{ .compatible = "samsung,exynos-sysmmu", },
{ },
};
diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index b997508ea7c6..913a1c5ad1b4 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -178,7 +178,6 @@ static int c_can_pci_probe(struct pci_dev *pdev,
break;
case BOSCH_D_CAN:
priv->regs = reg_map_d_can;
- priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
break;
default:
ret = -EINVAL;
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 12430be6448a..660404f5ebac 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -266,7 +266,6 @@ static int c_can_plat_probe(struct platform_device *pdev)
break;
case BOSCH_D_CAN:
priv->regs = reg_map_d_can;
- priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
priv->write_reg = c_can_plat_write_reg_aligned_to_16bit;
priv->read_reg32 = d_can_plat_read_reg32;
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index 7a90075529c3..0cbf2d7eeb7c 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -334,7 +334,7 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv,
}

cf->can_id = id & ESD_IDMASK;
- cf->can_dlc = get_can_dlc(msg->msg.rx.dlc);
+ cf->can_dlc = get_can_dlc(msg->msg.rx.dlc & ~ESD_RTR);

if (id & ESD_EXTID)
cf->can_id |= CAN_EFF_FLAG;
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index b16c5a2d92fb..a864951dfc43 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -356,6 +356,8 @@ static void gs_usb_recieve_bulk_callback(struct urb *urb)

gs_free_tx_context(txc);

+ atomic_dec(&dev->active_tx_urbs);
+
netif_wake_queue(netdev);
}

@@ -444,14 +446,6 @@ static void gs_usb_xmit_callback(struct urb *urb)
urb->transfer_buffer_length,
urb->transfer_buffer,
urb->transfer_dma);
-
- atomic_dec(&dev->active_tx_urbs);
-
- if (!netif_device_present(netdev))
- return;
-
- if (netif_queue_stopped(netdev))
- netif_wake_queue(netdev);
}

static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, struct net_device *netdev)
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 4d47f224d705..0c2c23c7dfe0 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -1263,7 +1263,8 @@ static int kvaser_usb_close(struct net_device *netdev)
if (err)
netdev_warn(netdev, "Cannot flush queue, error %d\n", err);

- if (kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel))
+ err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel);
+ if (err)
netdev_warn(netdev, "Cannot reset card, error %d\n", err);

err = kvaser_usb_stop_chip(priv);
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index b787d1ceeba6..47eba38ae526 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1051,10 +1051,12 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
return 0;

case TUNSETSNDBUF:
- if (get_user(u, up))
+ if (get_user(s, sp))
return -EFAULT;
+ if (s <= 0)
+ return -EINVAL;

- q->sk.sk_sndbuf = u;
+ q->sk.sk_sndbuf = s;
return 0;

case TUNGETVNETHDRSZ:
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 1c843a4ac7a4..a87b76341502 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1647,6 +1647,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)

if (!dev)
return -ENOMEM;
+ err = dev_get_valid_name(net, dev, name);
+ if (err)
+ goto err_free_dev;

dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
@@ -2051,6 +2054,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
ret = -EFAULT;
break;
}
+ if (sndbuf <= 0) {
+ ret = -EINVAL;
+ break;
+ }

tun->sndbuf = sndbuf;
tun_set_sndbuf(tun);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
index 3f9cb894d001..b53ba992767b 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
@@ -25,50 +25,6 @@
#include "fweh.h"
#include "fwil.h"

-/**
- * struct brcm_ethhdr - broadcom specific ether header.
- *
- * @subtype: subtype for this packet.
- * @length: TODO: length of appended data.
- * @version: version indication.
- * @oui: OUI of this packet.
- * @usr_subtype: subtype for this OUI.
- */
-struct brcm_ethhdr {
- __be16 subtype;
- __be16 length;
- u8 version;
- u8 oui[3];
- __be16 usr_subtype;
-} __packed;
-
-struct brcmf_event_msg_be {
- __be16 version;
- __be16 flags;
- __be32 event_type;
- __be32 status;
- __be32 reason;
- __be32 auth_type;
- __be32 datalen;
- u8 addr[ETH_ALEN];
- char ifname[IFNAMSIZ];
- u8 ifidx;
- u8 bsscfgidx;
-} __packed;
-
-/**
- * struct brcmf_event - contents of broadcom event packet.
- *
- * @eth: standard ether header.
- * @hdr: broadcom specific ether header.
- * @msg: common part of the actual event message.
- */
-struct brcmf_event {
- struct ethhdr eth;
- struct brcm_ethhdr hdr;
- struct brcmf_event_msg_be msg;
-} __packed;
-
/**
* struct brcmf_fweh_queue_item - event item on event queue.
*
@@ -85,6 +41,7 @@ struct brcmf_fweh_queue_item {
u8 ifidx;
u8 ifaddr[ETH_ALEN];
struct brcmf_event_msg_be emsg;
+ u32 datalen;
u8 data[0];
};

@@ -292,6 +249,11 @@ static void brcmf_fweh_event_worker(struct work_struct *work)
brcmf_dbg_hex_dump(BRCMF_EVENT_ON(), event->data,
min_t(u32, emsg.datalen, 64),
"event payload, len=%d\n", emsg.datalen);
+ if (emsg.datalen > event->datalen) {
+ brcmf_err("event invalid length header=%d, msg=%d\n",
+ event->datalen, emsg.datalen);
+ goto event_free;
+ }

/* special handling of interface event */
if (event->code == BRCMF_E_IF) {
@@ -423,7 +385,8 @@ int brcmf_fweh_activate_events(struct brcmf_if *ifp)
* dispatch the event to a registered handler (using worker).
*/
void brcmf_fweh_process_event(struct brcmf_pub *drvr,
- struct brcmf_event *event_packet)
+ struct brcmf_event *event_packet,
+ u32 packet_len)
{
enum brcmf_fweh_event_code code;
struct brcmf_fweh_info *fweh = &drvr->fweh;
@@ -443,6 +406,10 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
if (code != BRCMF_E_IF && !fweh->evt_handler[code])
return;

+ if (datalen > BRCMF_DCMD_MAXLEN ||
+ datalen + sizeof(*event_packet) > packet_len)
+ return;
+
if (in_interrupt())
alloc_flag = GFP_ATOMIC;

@@ -456,6 +423,7 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
/* use memcpy to get aligned event message */
memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
memcpy(event->data, data, datalen);
+ event->datalen = datalen;
memcpy(event->ifaddr, event_packet->eth.h_dest, ETH_ALEN);

brcmf_fweh_queue_event(fweh, event);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index d26b47698f68..9b5416193bf6 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -27,7 +27,6 @@
struct brcmf_pub;
struct brcmf_if;
struct brcmf_cfg80211_info;
-struct brcmf_event;

/* list of firmware events */
#define BRCMF_FWEH_EVENT_ENUM_DEFLIST \
@@ -173,12 +172,54 @@ enum brcmf_fweh_event_code {
/**
* definitions for event packet validation.
*/
-#define BRCMF_EVENT_OUI_OFFSET 19
-#define BRCM_OUI "\x00\x10\x18"
-#define DOT11_OUI_LEN 3
-#define BCMILCP_BCM_SUBTYPE_EVENT 1
+#define BRCM_OUI "\x00\x10\x18"
+#define BCMILCP_BCM_SUBTYPE_EVENT 1


+/**
+ * struct brcm_ethhdr - broadcom specific ether header.
+ *
+ * @subtype: subtype for this packet.
+ * @length: TODO: length of appended data.
+ * @version: version indication.
+ * @oui: OUI of this packet.
+ * @usr_subtype: subtype for this OUI.
+ */
+struct brcm_ethhdr {
+ __be16 subtype;
+ __be16 length;
+ u8 version;
+ u8 oui[3];
+ __be16 usr_subtype;
+} __packed;
+
+struct brcmf_event_msg_be {
+ __be16 version;
+ __be16 flags;
+ __be32 event_type;
+ __be32 status;
+ __be32 reason;
+ __be32 auth_type;
+ __be32 datalen;
+ u8 addr[ETH_ALEN];
+ char ifname[IFNAMSIZ];
+ u8 ifidx;
+ u8 bsscfgidx;
+} __packed;
+
+/**
+ * struct brcmf_event - contents of broadcom event packet.
+ *
+ * @eth: standard ether header.
+ * @hdr: broadcom specific ether header.
+ * @msg: common part of the actual event message.
+ */
+struct brcmf_event {
+ struct ethhdr eth;
+ struct brcm_ethhdr hdr;
+ struct brcmf_event_msg_be msg;
+} __packed;
+
/**
* struct brcmf_event_msg - firmware event message.
*
@@ -247,33 +288,34 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr,
enum brcmf_fweh_event_code code);
int brcmf_fweh_activate_events(struct brcmf_if *ifp);
void brcmf_fweh_process_event(struct brcmf_pub *drvr,
- struct brcmf_event *event_packet);
+ struct brcmf_event *event_packet,
+ u32 packet_len);

static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
struct sk_buff *skb)
{
struct brcmf_event *event_packet;
- u8 *data;
u16 usr_stype;

/* only process events when protocol matches */
if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL))
return;

+ if ((skb->len + ETH_HLEN) < sizeof(*event_packet))
+ return;
+
/* check for BRCM oui match */
event_packet = (struct brcmf_event *)skb_mac_header(skb);
- data = (u8 *)event_packet;
- data += BRCMF_EVENT_OUI_OFFSET;
- if (memcmp(BRCM_OUI, data, DOT11_OUI_LEN))
+ if (memcmp(BRCM_OUI, &event_packet->hdr.oui[0],
+ sizeof(event_packet->hdr.oui)))
return;

/* final match on usr_subtype */
- data += DOT11_OUI_LEN;
- usr_stype = get_unaligned_be16(data);
+ usr_stype = get_unaligned_be16(&event_packet->hdr.usr_subtype);
if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
return;

- brcmf_fweh_process_event(drvr, event_packet);
+ brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN);
}

#endif /* FWEH_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index f3445ac627e4..b489476532df 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -1363,6 +1363,11 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
u16 mgmt_type;
u8 action;

+ if (e->datalen < sizeof(*rxframe)) {
+ brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+ return 0;
+ }
+
ch.chspec = be16_to_cpu(rxframe->chanspec);
cfg->d11inf.decchspec(&ch);
/* Check if wpa_supplicant has registered for this frame */
@@ -1861,6 +1866,11 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code,
e->reason);

+ if (e->datalen < sizeof(*rxframe)) {
+ brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+ return 0;
+ }
+
ch.chspec = be16_to_cpu(rxframe->chanspec);
cfg->d11inf.decchspec(&ch);

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 26c5f3bdf2c5..c3e0a9aecd42 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -3036,6 +3036,11 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,

brcmf_dbg(SCAN, "Enter\n");

+ if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
+ brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+ return 0;
+ }
+
if (e->event_code == BRCMF_E_PFN_NET_LOST) {
brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
return 0;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index e83644dfaa6c..15175dd0cf86 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1004,6 +1004,11 @@ static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
struct iwl_mvm_mc_iter_data *data = _data;
struct iwl_mvm *mvm = data->mvm;
struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
+ struct iwl_host_cmd hcmd = {
+ .id = MCAST_FILTER_CMD,
+ .flags = CMD_ASYNC,
+ .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
+ };
int ret, len;

/* if we don't have free ports, mcast frames will be dropped */
@@ -1018,7 +1023,10 @@ static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);

- ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
+ hcmd.len[0] = len;
+ hcmd.data[0] = cmd;
+
+ ret = iwl_mvm_send_cmd(mvm, &hcmd);
if (ret)
IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
}
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 0ca2961a56a2..a8c9a4a361fb 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -514,7 +514,7 @@ static ssize_t driver_override_store(struct device *dev,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
- char *driver_override, *old = pdev->driver_override, *cp;
+ char *driver_override, *old, *cp;

/* We need to keep extra room for a newline */
if (count >= (PAGE_SIZE - 1))
@@ -528,12 +528,15 @@ static ssize_t driver_override_store(struct device *dev,
if (cp)
*cp = '\0';

+ device_lock(dev);
+ old = pdev->driver_override;
if (strlen(driver_override)) {
pdev->driver_override = driver_override;
} else {
kfree(driver_override);
pdev->driver_override = NULL;
}
+ device_unlock(dev);

kfree(old);

@@ -544,8 +547,12 @@ static ssize_t driver_override_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
+ ssize_t len;

- return snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+ device_lock(dev);
+ len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+ device_unlock(dev);
+ return len;
}
static DEVICE_ATTR_RW(driver_override);

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 8004b071a9f2..a7a0b3e4f5ea 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -356,6 +356,8 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);
INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update);

+ adapter->erp_action.adapter = adapter;
+
if (zfcp_qdio_setup(adapter))
goto failed;

@@ -512,6 +514,9 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
port->dev.groups = zfcp_port_attr_groups;
port->dev.release = zfcp_port_release;

+ port->erp_action.adapter = adapter;
+ port->erp_action.port = port;
+
if (dev_set_name(&port->dev, "0x%016llx", (unsigned long long)wwpn)) {
kfree(port);
goto err_out;
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index acb0b8c3989d..d9b2949de543 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -193,9 +193,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE,
&zfcp_sdev->status);
erp_action = &zfcp_sdev->erp_action;
- memset(erp_action, 0, sizeof(struct zfcp_erp_action));
- erp_action->port = port;
- erp_action->sdev = sdev;
+ WARN_ON_ONCE(erp_action->port != port);
+ WARN_ON_ONCE(erp_action->sdev != sdev);
if (!(atomic_read(&zfcp_sdev->status) &
ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -208,8 +207,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
zfcp_erp_action_dismiss_port(port);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);
erp_action = &port->erp_action;
- memset(erp_action, 0, sizeof(struct zfcp_erp_action));
- erp_action->port = port;
+ WARN_ON_ONCE(erp_action->port != port);
+ WARN_ON_ONCE(erp_action->sdev != NULL);
if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
break;
@@ -219,7 +218,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
zfcp_erp_action_dismiss_adapter(adapter);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);
erp_action = &adapter->erp_action;
- memset(erp_action, 0, sizeof(struct zfcp_erp_action));
+ WARN_ON_ONCE(erp_action->port != NULL);
+ WARN_ON_ONCE(erp_action->sdev != NULL);
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING))
act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -229,7 +229,11 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
return NULL;
}

- erp_action->adapter = adapter;
+ WARN_ON_ONCE(erp_action->adapter != adapter);
+ memset(&erp_action->list, 0, sizeof(erp_action->list));
+ memset(&erp_action->timer, 0, sizeof(erp_action->timer));
+ erp_action->step = ZFCP_ERP_STEP_UNINITIALIZED;
+ erp_action->fsf_req_id = 0;
erp_action->action = need;
erp_action->status = act_status;

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index b495c085a0b5..0c03ae19b689 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -136,10 +136,15 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
struct zfcp_unit *unit;
int npiv = adapter->connection_features & FSF_FEATURE_NPIV_MODE;

+ zfcp_sdev->erp_action.adapter = adapter;
+ zfcp_sdev->erp_action.sdev = sdev;
+
port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
if (!port)
return -ENXIO;

+ zfcp_sdev->erp_action.port = port;
+
unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev));
if (unit)
put_device(&unit->dev);
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 877fd93766ce..fc6801fe134e 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1727,7 +1727,7 @@ int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc)

if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) {
reason = FAILURE_SESSION_IN_RECOVERY;
- sc->result = DID_REQUEUE;
+ sc->result = DID_REQUEUE << 16;
goto fault;
}

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 0813a2dcd3d1..83ff6cba873e 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -5242,6 +5242,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2999 Unsupported SLI4 Parameters "
"Extents and RPI headers enabled.\n");
+ rc = -EIO;
goto out_free_bsmbx;
}
}
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index c31e1cb009af..cf13b561af83 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -962,6 +962,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
if (*bflags & BLIST_NO_DIF)
sdev->no_dif = 1;

+ if (*bflags & BLIST_UNMAP_LIMIT_WS)
+ sdev->unmap_limit_for_ws = 1;
+
sdev->eh_timeout = SCSI_DEFAULT_EH_TIMEOUT;

if (*bflags & BLIST_TRY_VPD_PAGES)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3dcb3c080c1e..c50cfd16a976 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -651,13 +651,21 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode)
break;

case SD_LBP_WS16:
- max_blocks = min_not_zero(sdkp->max_ws_blocks,
- (u32)SD_MAX_WS16_BLOCKS);
+ if (sdkp->device->unmap_limit_for_ws)
+ max_blocks = sdkp->max_unmap_blocks;
+ else
+ max_blocks = sdkp->max_ws_blocks;
+
+ max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS16_BLOCKS);
break;

case SD_LBP_WS10:
- max_blocks = min_not_zero(sdkp->max_ws_blocks,
- (u32)SD_MAX_WS10_BLOCKS);
+ if (sdkp->device->unmap_limit_for_ws)
+ max_blocks = sdkp->max_unmap_blocks;
+ else
+ max_blocks = sdkp->max_ws_blocks;
+
+ max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS10_BLOCKS);
break;

case SD_LBP_ZERO:
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 26b2cdca29ad..c7aaf2bb1018 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -206,11 +206,9 @@ static int ad7192_setup(struct ad7192_state *st,
struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
unsigned long long scale_uv;
int i, ret, id;
- u8 ones[6];

/* reset the serial interface */
- memset(&ones, 0xFF, 6);
- ret = spi_write(st->sd.spi, &ones, 6);
+ ret = ad_sd_reset(&st->sd, 48);
if (ret < 0)
goto out;
msleep(1); /* Wait for at least 500us */
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index ea0c9debf8bf..14e3eca3ff35 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -124,7 +124,7 @@ static int ade7759_spi_read_reg_40(struct device *dev,
reg_address);
goto error_ret;
}
- *val = ((u64)st->rx[1] << 32) | (st->rx[2] << 24) |
+ *val = ((u64)st->rx[1] << 32) | ((u64)st->rx[2] << 24) |
(st->rx[3] << 16) | (st->rx[4] << 8) | st->rx[5];

error_ret:
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index ef71827f92a3..58034df6351b 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1775,6 +1775,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
},
+ { USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */
+ .driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */
+ },

{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
.driver_info = CLEAR_HALT_CONDITIONS,
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 063d9767d6fe..13d31422d6b7 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -519,6 +519,9 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx,
unsigned iad_num = 0;

memcpy(&config->desc, buffer, USB_DT_CONFIG_SIZE);
+ nintf = nintf_orig = config->desc.bNumInterfaces;
+ config->desc.bNumInterfaces = 0; // Adjusted later
+
if (config->desc.bDescriptorType != USB_DT_CONFIG ||
config->desc.bLength < USB_DT_CONFIG_SIZE ||
config->desc.bLength > size) {
@@ -532,7 +535,6 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx,
buffer += config->desc.bLength;
size -= config->desc.bLength;

- nintf = nintf_orig = config->desc.bNumInterfaces;
if (nintf > USB_MAXINTERFACES) {
dev_warn(ddev, "config %d has too many interfaces: %d, "
"using maximum allowed: %d\n",
@@ -824,7 +826,7 @@ int usb_get_configuration(struct usb_device *dev)
}

if (dev->quirks & USB_QUIRK_DELAY_INIT)
- msleep(100);
+ msleep(200);

result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
bigbuffer, length);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 598e9adf8858..b4dd4821d1fd 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2625,13 +2625,16 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
if (!(portstatus & USB_PORT_STAT_CONNECTION))
return -ENOTCONN;

- /* bomb out completely if the connection bounced. A USB 3.0
- * connection may bounce if multiple warm resets were issued,
+ /* Retry if connect change is set but status is still connected.
+ * A USB 3.0 connection may bounce if multiple warm resets were issued,
* but the device may have successfully re-connected. Ignore it.
*/
if (!hub_is_superspeed(hub->hdev) &&
- (portchange & USB_PORT_STAT_C_CONNECTION))
- return -ENOTCONN;
+ (portchange & USB_PORT_STAT_C_CONNECTION)) {
+ usb_clear_port_feature(hub->hdev, port1,
+ USB_PORT_FEAT_C_CONNECTION);
+ return -EAGAIN;
+ }

if (!(portstatus & USB_PORT_STAT_ENABLE))
return -EBUSY;
@@ -4699,7 +4702,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
goto loop;

if (udev->quirks & USB_QUIRK_DELAY_INIT)
- msleep(1000);
+ msleep(2000);

/* consecutive bus-powered hubs aren't reliable; they can
* violate the voltage drop budget. if the new child has
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index c9b564e362c8..25d0eed708a3 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -218,6 +218,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Corsair Strafe RGB */
{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },

+ /* MIDI keyboard WORLDE MINI */
+ { USB_DEVICE(0x1c75, 0x0204), .driver_info =
+ USB_QUIRK_CONFIG_INTF_STRINGS },
+
/* Acer C120 LED Projector */
{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index b8a961ba1d2b..38042f6d9c04 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1815,6 +1815,8 @@ static DEVICE_ATTR_RO(suspended);
static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver)
{
struct usb_composite_dev *cdev = get_gadget_data(gadget);
+ struct usb_gadget_strings *gstr = cdev->driver->strings[0];
+ struct usb_string *dev_str = gstr->strings;

/* composite_disconnect() must already have been called
* by the underlying peripheral controller driver!
@@ -1834,6 +1836,9 @@ static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver)

composite_dev_cleanup(cdev);

+ if (dev_str[USB_GADGET_MANUFACTURER_IDX].s == cdev->def_manufacturer)
+ dev_str[USB_GADGET_MANUFACTURER_IDX].s = "";
+
kfree(cdev->def_manufacturer);
kfree(cdev);
set_gadget_data(gadget, NULL);
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index d20222e56419..8c73186fc0e8 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -173,6 +173,8 @@ struct dummy_hcd {

struct usb_device *udev;
struct list_head urbp_list;
+ struct urbp *next_frame_urbp;
+
u32 stream_en_ep;
u8 num_stream[30 / 2];

@@ -189,11 +191,13 @@ struct dummy {
*/
struct dummy_ep ep[DUMMY_ENDPOINTS];
int address;
+ int callback_usage;
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct dummy_request fifo_req;
u8 fifo_buf[FIFO_SIZE];
u16 devstatus;
+ unsigned ints_enabled:1;
unsigned udc_suspended:1;
unsigned pullup:1;

@@ -311,11 +315,10 @@ static void set_link_state_by_speed(struct dummy_hcd *dum_hcd)
USB_PORT_STAT_CONNECTION) == 0)
dum_hcd->port_status |=
(USB_PORT_STAT_C_CONNECTION << 16);
- if ((dum_hcd->port_status &
- USB_PORT_STAT_ENABLE) == 1 &&
- (dum_hcd->port_status &
- USB_SS_PORT_LS_U0) == 1 &&
- dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
+ if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) &&
+ (dum_hcd->port_status &
+ USB_PORT_STAT_LINK_STATE) == USB_SS_PORT_LS_U0 &&
+ dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
dum_hcd->active = 1;
}
} else {
@@ -352,6 +355,7 @@ static void set_link_state_by_speed(struct dummy_hcd *dum_hcd)
static void set_link_state(struct dummy_hcd *dum_hcd)
{
struct dummy *dum = dum_hcd->dum;
+ unsigned int power_bit;

dum_hcd->active = 0;
if (dum->pullup)
@@ -362,36 +366,40 @@ static void set_link_state(struct dummy_hcd *dum_hcd)
return;

set_link_state_by_speed(dum_hcd);
+ power_bit = (dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3 ?
+ USB_SS_PORT_STAT_POWER : USB_PORT_STAT_POWER);

if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0 ||
dum_hcd->active)
dum_hcd->resuming = 0;

/* if !connected or reset */
- if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0 ||
+ if ((dum_hcd->port_status & power_bit) == 0 ||
(dum_hcd->port_status & USB_PORT_STAT_RESET) != 0) {
/*
* We're connected and not reset (reset occurred now),
* and driver attached - disconnect!
*/
- if ((dum_hcd->old_status & USB_PORT_STAT_CONNECTION) != 0 &&
+ if ((dum_hcd->old_status & power_bit) != 0 &&
(dum_hcd->old_status & USB_PORT_STAT_RESET) == 0 &&
- dum->driver) {
+ dum->ints_enabled) {
stop_activity(dum);
+ ++dum->callback_usage;
spin_unlock(&dum->lock);
dum->driver->disconnect(&dum->gadget);
spin_lock(&dum->lock);
+ --dum->callback_usage;
}
- } else if (dum_hcd->active != dum_hcd->old_active) {
- if (dum_hcd->old_active && dum->driver->suspend) {
- spin_unlock(&dum->lock);
+ } else if (dum_hcd->active != dum_hcd->old_active &&
+ dum->ints_enabled) {
+ ++dum->callback_usage;
+ spin_unlock(&dum->lock);
+ if (dum_hcd->old_active && dum->driver->suspend)
dum->driver->suspend(&dum->gadget);
- spin_lock(&dum->lock);
- } else if (!dum_hcd->old_active && dum->driver->resume) {
- spin_unlock(&dum->lock);
+ else if (!dum_hcd->old_active && dum->driver->resume)
dum->driver->resume(&dum->gadget);
- spin_lock(&dum->lock);
- }
+ spin_lock(&dum->lock);
+ --dum->callback_usage;
}

dum_hcd->old_status = dum_hcd->port_status;
@@ -907,9 +915,12 @@ static int dummy_udc_start(struct usb_gadget *g,
* can't enumerate without help from the driver we're binding.
*/

+ spin_lock_irq(&dum->lock);
dum->devstatus = 0;

dum->driver = driver;
+ dum->ints_enabled = 1;
+ spin_unlock_irq(&dum->lock);
dev_dbg(udc_dev(dum), "binding gadget driver '%s'\n",
driver->driver.name);
return 0;
@@ -925,7 +936,19 @@ static int dummy_udc_stop(struct usb_gadget *g,
dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
driver->driver.name);

+ spin_lock_irq(&dum->lock);
+ dum->ints_enabled = 0;
+ stop_activity(dum);
+
+ /* emulate synchronize_irq(): wait for callbacks to finish */
+ while (dum->callback_usage > 0) {
+ spin_unlock_irq(&dum->lock);
+ usleep_range(1000, 2000);
+ spin_lock_irq(&dum->lock);
+ }
+
dum->driver = NULL;
+ spin_unlock_irq(&dum->lock);

return 0;
}
@@ -974,7 +997,12 @@ static int dummy_udc_probe(struct platform_device *pdev)
dum = *((void **)dev_get_platdata(&pdev->dev));
dum->gadget.name = gadget_name;
dum->gadget.ops = &dummy_ops;
- dum->gadget.max_speed = USB_SPEED_SUPER;
+ if (mod_data.is_super_speed)
+ dum->gadget.max_speed = USB_SPEED_SUPER;
+ else if (mod_data.is_high_speed)
+ dum->gadget.max_speed = USB_SPEED_HIGH;
+ else
+ dum->gadget.max_speed = USB_SPEED_FULL;

dum->gadget.dev.parent = &pdev->dev;
init_dummy_udc_hw(dum);
@@ -1184,6 +1212,8 @@ static int dummy_urb_enqueue(

list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list);
urb->hcpriv = urbp;
+ if (!dum_hcd->next_frame_urbp)
+ dum_hcd->next_frame_urbp = urbp;
if (usb_pipetype(urb->pipe) == PIPE_CONTROL)
urb->error_count = 1; /* mark as a new urb */

@@ -1446,6 +1476,8 @@ static struct dummy_ep *find_endpoint(struct dummy *dum, u8 address)
if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ?
dum->ss_hcd : dum->hs_hcd)))
return NULL;
+ if (!dum->ints_enabled)
+ return NULL;
if ((address & ~USB_DIR_IN) == 0)
return &dum->ep[0];
for (i = 1; i < DUMMY_ENDPOINTS; i++) {
@@ -1687,6 +1719,7 @@ static void dummy_timer(unsigned long _dum_hcd)
spin_unlock_irqrestore(&dum->lock, flags);
return;
}
+ dum_hcd->next_frame_urbp = NULL;

for (i = 0; i < DUMMY_ENDPOINTS; i++) {
if (!ep_name[i])
@@ -1703,6 +1736,10 @@ static void dummy_timer(unsigned long _dum_hcd)
int type;
int status = -EINPROGRESS;

+ /* stop when we reach URBs queued after the timer interrupt */
+ if (urbp == dum_hcd->next_frame_urbp)
+ break;
+
urb = urbp->urb;
if (urb->unlinked)
goto return_urb;
@@ -1782,10 +1819,12 @@ static void dummy_timer(unsigned long _dum_hcd)
* until setup() returns; no reentrancy issues etc.
*/
if (value > 0) {
+ ++dum->callback_usage;
spin_unlock(&dum->lock);
value = dum->driver->setup(&dum->gadget,
&setup);
spin_lock(&dum->lock);
+ --dum->callback_usage;

if (value >= 0) {
/* no delays (max 64KB data stage) */
@@ -2490,8 +2529,6 @@ static struct hc_driver dummy_hcd = {
.product_desc = "Dummy host controller",
.hcd_priv_size = sizeof(struct dummy_hcd),

- .flags = HCD_USB3 | HCD_SHARED,
-
.reset = dummy_setup,
.start = dummy_start,
.stop = dummy_stop,
@@ -2520,8 +2557,12 @@ static int dummy_hcd_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc);
dum = *((void **)dev_get_platdata(&pdev->dev));

- if (!mod_data.is_super_speed)
+ if (mod_data.is_super_speed)
+ dummy_hcd.flags = HCD_USB3 | HCD_SHARED;
+ else if (mod_data.is_high_speed)
dummy_hcd.flags = HCD_USB2;
+ else
+ dummy_hcd.flags = HCD_USB11;
hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev));
if (!hs_hcd)
return -ENOMEM;
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 2234c3a5ed8e..f0db2ca816c0 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -307,8 +307,6 @@ struct fsg_common {
struct completion thread_notifier;
struct task_struct *thread_task;

- /* Callback functions. */
- const struct fsg_operations *ops;
/* Gadget's private data. */
void *private_data;

@@ -2498,6 +2496,8 @@ static void handle_exception(struct fsg_common *common)
static int fsg_main_thread(void *common_)
{
struct fsg_common *common = common_;
+ struct fsg_lun **curlun_it;
+ unsigned i;

/*
* Allow the thread to be killed by a signal, but set the signal mask
@@ -2559,22 +2559,18 @@ static int fsg_main_thread(void *common_)
common->thread_task = NULL;
spin_unlock_irq(&common->lock);

- if (!common->ops || !common->ops->thread_exits
- || common->ops->thread_exits(common) < 0) {
- struct fsg_lun **curlun_it = common->luns;
- unsigned i = common->nluns;
+ /* Eject media from all LUNs */
+ curlun_it = common->luns;
+ i = common->nluns;

- down_write(&common->filesem);
- for (; i--; ++curlun_it) {
- struct fsg_lun *curlun = *curlun_it;
- if (!curlun || !fsg_lun_is_open(curlun))
- continue;
+ down_write(&common->filesem);
+ for (; i--; ++curlun_it) {
+ struct fsg_lun *curlun = *curlun_it;

+ if (curlun && fsg_lun_is_open(curlun))
fsg_lun_close(curlun);
- curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
- }
- up_write(&common->filesem);
}
+ up_write(&common->filesem);

/* Let fsg_unbind() know the thread has exited */
complete_and_exit(&common->thread_notifier, 0);
@@ -2842,13 +2838,6 @@ int fsg_common_set_nluns(struct fsg_common *common, int nluns)
}
EXPORT_SYMBOL_GPL(fsg_common_set_nluns);

-void fsg_common_set_ops(struct fsg_common *common,
- const struct fsg_operations *ops)
-{
- common->ops = ops;
-}
-EXPORT_SYMBOL_GPL(fsg_common_set_ops);
-
void fsg_common_free_buffers(struct fsg_common *common)
{
_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index b4866fcef30b..bf0fe5cda863 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -60,17 +60,6 @@ struct fsg_module_parameters {
struct fsg_common;

/* FSF callback functions */
-struct fsg_operations {
- /*
- * Callback function to call when thread exits. If no
- * callback is set or it returns value lower then zero MSF
- * will force eject all LUNs it operates on (including those
- * marked as non-removable or with prevent_medium_removal flag
- * set).
- */
- int (*thread_exits)(struct fsg_common *common);
-};
-
struct fsg_lun_opts {
struct config_group group;
struct fsg_lun *lun;
@@ -145,9 +134,6 @@ void fsg_common_free_luns(struct fsg_common *common);

int fsg_common_set_nluns(struct fsg_common *common, int nluns);

-void fsg_common_set_ops(struct fsg_common *common,
- const struct fsg_operations *ops);
-
int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
unsigned int id, const char *name,
const char **name_pfx);
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index ac3c91c7e627..0225e6dafaad 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -26,7 +26,7 @@
#include <linux/poll.h>
#include <linux/mmu_context.h>
#include <linux/aio.h>
-
+#include <linux/delay.h>
#include <linux/device.h>
#include <linux/moduleparam.h>

@@ -113,6 +113,7 @@ enum ep0_state {
struct dev_data {
spinlock_t lock;
atomic_t count;
+ int udc_usage;
enum ep0_state state; /* P: lock */
struct usb_gadgetfs_event event [N_EVENT];
unsigned ev_next;
@@ -620,9 +621,9 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
priv->actual = req->actual;
schedule_work(&priv->work);
}
- spin_unlock(&epdata->dev->lock);

usb_ep_free_request(ep, req);
+ spin_unlock(&epdata->dev->lock);
put_ep(epdata);
}

@@ -1011,9 +1012,11 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
struct usb_request *req = dev->req;

if ((retval = setup_req (ep, req, 0)) == 0) {
+ ++dev->udc_usage;
spin_unlock_irq (&dev->lock);
retval = usb_ep_queue (ep, req, GFP_KERNEL);
spin_lock_irq (&dev->lock);
+ --dev->udc_usage;
}
dev->state = STATE_DEV_CONNECTED;

@@ -1055,11 +1058,14 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
retval = -EIO;
else {
len = min (len, (size_t)dev->req->actual);
-// FIXME don't call this with the spinlock held ...
+ ++dev->udc_usage;
+ spin_unlock_irq(&dev->lock);
if (copy_to_user (buf, dev->req->buf, len))
retval = -EFAULT;
else
retval = len;
+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
clean_req (dev->gadget->ep0, dev->req);
/* NOTE userspace can't yet choose to stall */
}
@@ -1205,6 +1211,7 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
retval = setup_req (dev->gadget->ep0, dev->req, len);
if (retval == 0) {
dev->state = STATE_DEV_CONNECTED;
+ ++dev->udc_usage;
spin_unlock_irq (&dev->lock);
if (copy_from_user (dev->req->buf, buf, len))
retval = -EFAULT;
@@ -1215,12 +1222,13 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
dev->gadget->ep0, dev->req,
GFP_KERNEL);
}
+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
if (retval < 0) {
- spin_lock_irq (&dev->lock);
clean_req (dev->gadget->ep0, dev->req);
- spin_unlock_irq (&dev->lock);
} else
retval = len;
+ spin_unlock_irq(&dev->lock);

return retval;
}
@@ -1313,9 +1321,21 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value)
struct usb_gadget *gadget = dev->gadget;
long ret = -ENOTTY;

- if (gadget->ops->ioctl)
+ spin_lock_irq(&dev->lock);
+ if (dev->state == STATE_DEV_OPENED ||
+ dev->state == STATE_DEV_UNBOUND) {
+ /* Not bound to a UDC */
+ } else if (gadget->ops->ioctl) {
+ ++dev->udc_usage;
+ spin_unlock_irq(&dev->lock);
+
ret = gadget->ops->ioctl (gadget, code, value);

+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
+ }
+ spin_unlock_irq(&dev->lock);
+
return ret;
}

@@ -1546,10 +1566,12 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
if (value < 0)
break;

+ ++dev->udc_usage;
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0, dev->req,
GFP_KERNEL);
spin_lock (&dev->lock);
+ --dev->udc_usage;
if (value < 0) {
clean_req (gadget->ep0, dev->req);
break;
@@ -1573,8 +1595,12 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
req->length = value;
req->zero = value < w_length;

+ ++dev->udc_usage;
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0, req, GFP_KERNEL);
+ spin_lock(&dev->lock);
+ --dev->udc_usage;
+ spin_unlock(&dev->lock);
if (value < 0) {
DBG (dev, "ep_queue --> %d\n", value);
req->status = 0;
@@ -1601,21 +1627,24 @@ static void destroy_ep_files (struct dev_data *dev)
/* break link to FS */
ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
list_del_init (&ep->epfiles);
+ spin_unlock_irq (&dev->lock);
+
dentry = ep->dentry;
ep->dentry = NULL;
parent = dentry->d_parent->d_inode;

/* break link to controller */
+ mutex_lock(&ep->lock);
if (ep->state == STATE_EP_ENABLED)
(void) usb_ep_disable (ep->ep);
ep->state = STATE_EP_UNBOUND;
usb_ep_free_request (ep->ep, ep->req);
ep->ep = NULL;
+ mutex_unlock(&ep->lock);
+
wake_up (&ep->wait);
put_ep (ep);

- spin_unlock_irq (&dev->lock);
-
/* break link to dcache */
mutex_lock (&parent->i_mutex);
d_delete (dentry);
@@ -1688,6 +1717,11 @@ gadgetfs_unbind (struct usb_gadget *gadget)

spin_lock_irq (&dev->lock);
dev->state = STATE_DEV_UNBOUND;
+ while (dev->udc_usage > 0) {
+ spin_unlock_irq(&dev->lock);
+ usleep_range(1000, 2000);
+ spin_lock_irq(&dev->lock);
+ }
spin_unlock_irq (&dev->lock);

destroy_ep_files (dev);
@@ -1764,9 +1798,10 @@ static void
gadgetfs_suspend (struct usb_gadget *gadget)
{
struct dev_data *dev = get_gadget_data (gadget);
+ unsigned long flags;

INFO (dev, "suspended from state %d\n", dev->state);
- spin_lock (&dev->lock);
+ spin_lock_irqsave(&dev->lock, flags);
switch (dev->state) {
case STATE_DEV_SETUP: // VERY odd... host died??
case STATE_DEV_CONNECTED:
@@ -1777,7 +1812,7 @@ gadgetfs_suspend (struct usb_gadget *gadget)
default:
break;
}
- spin_unlock (&dev->lock);
+ spin_unlock_irqrestore(&dev->lock, flags);
}

static struct usb_gadget_driver gadgetfs_driver = {
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 8e27a8c96444..c7ca12a109e1 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -121,15 +121,6 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;

FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);

-static unsigned long msg_registered;
-static void msg_cleanup(void);
-
-static int msg_thread_exits(struct fsg_common *common)
-{
- msg_cleanup();
- return 0;
-}
-
static int __init msg_do_config(struct usb_configuration *c)
{
struct fsg_opts *opts;
@@ -172,9 +163,6 @@ static struct usb_configuration msg_config_driver = {

static int __init msg_bind(struct usb_composite_dev *cdev)
{
- static const struct fsg_operations ops = {
- .thread_exits = msg_thread_exits,
- };
struct fsg_opts *opts;
struct fsg_config config;
int status;
@@ -195,8 +183,6 @@ static int __init msg_bind(struct usb_composite_dev *cdev)
if (status)
goto fail_set_nluns;

- fsg_common_set_ops(opts->common, &ops);
-
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
@@ -221,7 +207,6 @@ static int __init msg_bind(struct usb_composite_dev *cdev)
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&cdev->gadget->dev,
DRIVER_DESC ", version: " DRIVER_VERSION "\n");
- set_bit(0, &msg_registered);
return 0;

fail_string_ids:
@@ -268,9 +253,8 @@ static int __init msg_init(void)
}
module_init(msg_init);

-static void msg_cleanup(void)
+static void __exit msg_cleanup(void)
{
- if (test_and_clear_bit(0, &msg_registered))
- usb_composite_unregister(&msg_driver);
+ usb_composite_unregister(&msg_driver);
}
module_exit(msg_cleanup);
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 300b3a71383b..b464ed5e129e 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1941,11 +1941,8 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
nuke (&dev->ep [i]);

/* report disconnect; the driver is already quiesced */
- if (driver) {
- spin_unlock(&dev->lock);
+ if (driver)
driver->disconnect(&dev->gadget);
- spin_lock(&dev->lock);
- }

usb_reinit (dev);
}
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 677b3714557e..67733f044c22 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -1024,7 +1024,7 @@ EXPORT_SYMBOL_GPL(usb_disable_xhci_ports);
*
* Takes care of the handoff between the Pre-OS (i.e. BIOS) and the OS.
* It signals to the BIOS that the OS wants control of the host controller,
- * and then waits 5 seconds for the BIOS to hand over control.
+ * and then waits 1 second for the BIOS to hand over control.
* If we timeout, assume the BIOS is broken and take control anyway.
*/
static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
@@ -1070,9 +1070,9 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
if (val & XHCI_HC_BIOS_OWNED) {
writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);

- /* Wait for 5 seconds with 10 microsecond polling interval */
+ /* Wait for 1 second with 10 microsecond polling interval */
timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED,
- 0, 5000, 10);
+ 0, 1000000, 10);

/* Assume a buggy BIOS and take HC ownership anyway */
if (timeout) {
@@ -1100,7 +1100,7 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
* operational or runtime registers. Wait 5 seconds and no more.
*/
timeout = handshake(op_reg_base + XHCI_STS_OFFSET, XHCI_STS_CNR, 0,
- 5000, 10);
+ 5000000, 10);
/* Assume a buggy HC and start HC initialization anyway */
if (timeout) {
val = readl(op_reg_base + XHCI_STS_OFFSET);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 76628f9e39ba..f16bf70b54ba 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -293,15 +293,25 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
GFP_NOWAIT);
if (!command) {
spin_unlock_irqrestore(&xhci->lock, flags);
- xhci_free_command(xhci, cmd);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto cmd_cleanup;
+ }

+ ret = xhci_queue_stop_endpoint(xhci, command, slot_id,
+ i, suspend);
+ if (ret) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_free_command(xhci, command);
+ goto cmd_cleanup;
}
- xhci_queue_stop_endpoint(xhci, command, slot_id, i,
- suspend);
}
}
- xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+ ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+ if (ret) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ goto cmd_cleanup;
+ }
+
xhci_ring_cmd_db(xhci);
spin_unlock_irqrestore(&xhci->lock, flags);

@@ -312,6 +322,8 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
ret = -ETIME;
}
+
+cmd_cleanup:
xhci_free_command(xhci, cmd);
return ret;
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 746ffa720ae4..08057459c8e6 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1437,7 +1437,7 @@ struct xhci_bus_state {

static inline unsigned int hcd_index(struct usb_hcd *hcd)
{
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
return 0;
else
return 1;
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 2a540e4b5c61..70d4b6ed21a3 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -261,11 +261,26 @@ static void usbhsf_fifo_clear(struct usbhs_pipe *pipe,
struct usbhs_fifo *fifo)
{
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ int ret = 0;

- if (!usbhs_pipe_is_dcp(pipe))
- usbhsf_fifo_barrier(priv, fifo);
+ if (!usbhs_pipe_is_dcp(pipe)) {
+ /*
+ * This driver checks the pipe condition first to avoid -EBUSY
+ * from usbhsf_fifo_barrier() with about 10 msec delay in
+ * the interrupt handler if the pipe is RX direction and empty.
+ */
+ if (usbhs_pipe_is_dir_in(pipe))
+ ret = usbhs_pipe_is_accessible(pipe);
+ if (!ret)
+ ret = usbhsf_fifo_barrier(priv, fifo);
+ }

- usbhs_write(priv, fifo->ctr, BCLR);
+ /*
+ * if non-DCP pipe, this driver should set BCLR when
+ * usbhsf_fifo_barrier() returns 0.
+ */
+ if (!ret)
+ usbhs_write(priv, fifo->ctr, BCLR);
}

static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv,
@@ -813,9 +828,9 @@ static void xfer_work(struct work_struct *work)
dev_dbg(dev, " %s %d (%d/ %d)\n",
fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);

- usbhsf_dma_start(pipe, fifo);
usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
dma_async_issue_pending(chan);
+ usbhsf_dma_start(pipe, fifo);
usbhs_pipe_enable(pipe);

xfer_work_end:
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 8f8f4aed5fbb..13395320f9bc 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -170,6 +170,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+ { USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
{ USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 9c0cfba2c803..bf2fbb0798fb 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1028,6 +1028,8 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(WICED_VID, WICED_USB20706V2_PID) },
{ USB_DEVICE(TI_VID, TI_CC3200_LAUNCHPAD_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) },
+ { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) },
{ } /* Terminating entry */
};

diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index f34bc435d90a..c03449e3665a 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -609,6 +609,13 @@
#define ADI_GNICE_PID 0xF000
#define ADI_GNICEPLUS_PID 0xF001

+/*
+ * Cypress WICED USB UART
+ */
+#define CYPRESS_VID 0x04B4
+#define CYPRESS_WICED_BT_USB_PID 0x009B
+#define CYPRESS_WICED_WL_USB_PID 0xF900
+
/*
* Microchip Technology, Inc.
*
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 39e683096e94..45182c65fa1f 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -45,6 +45,7 @@ struct metrousb_private {
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) },
{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
+ { USB_DEVICE_INTERFACE_CLASS(0x0c2e, 0x0730, 0xff) }, /* MS7820 */
{ }, /* Terminating entry. */
};
MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 17d28273e03c..ed203e1a4d96 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -524,6 +524,7 @@ static void option_instat_callback(struct urb *urb);

/* TP-LINK Incorporated products */
#define TPLINK_VENDOR_ID 0x2357
+#define TPLINK_PRODUCT_LTE 0x000D
#define TPLINK_PRODUCT_MA180 0x0201

/* Changhong products */
@@ -2022,6 +2023,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) },
{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) },
+ { USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, TPLINK_PRODUCT_LTE, 0xff, 0x00, 0x00) }, /* TP-Link LTE Module */
{ USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180),
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(TPLINK_VENDOR_ID, 0x9000), /* TP-Link MA260 */
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 23c303b2a3a2..996dc09b00b8 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -172,6 +172,10 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
{DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */
{DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */
+ {DEVICE_SWI(0x413c, 0x81cf)}, /* Dell Wireless 5819 */
+ {DEVICE_SWI(0x413c, 0x81d0)}, /* Dell Wireless 5819 */
+ {DEVICE_SWI(0x413c, 0x81d1)}, /* Dell Wireless 5818 */
+ {DEVICE_SWI(0x413c, 0x81d2)}, /* Dell Wireless 5818 */

/* Huawei devices */
{DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 8988b268a69a..f848f52a756e 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -808,12 +808,24 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
if (result == USB_STOR_TRANSPORT_GOOD) {
srb->result = SAM_STAT_GOOD;
srb->sense_buffer[0] = 0x0;
+ }
+
+ /*
+ * ATA-passthru commands use sense data to report
+ * the command completion status, and often devices
+ * return Check Condition status when nothing is
+ * wrong.
+ */
+ else if (srb->cmnd[0] == ATA_16 ||
+ srb->cmnd[0] == ATA_12) {
+ /* leave the data alone */
+ }

/* If there was a problem, report an unspecified
* hardware error to prevent the higher layers from
* entering an infinite retry loop.
*/
- } else {
+ else {
srb->result = DID_ERROR << 16;
if ((sshdr.response_code & 0x72) == 0x72)
srb->sense_buffer[1] = HARDWARE_ERROR;
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 96379e715d4b..825625d62982 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1360,6 +1360,13 @@ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_SANE_SENSE ),

+/* Reported by Kris Lindgren <kris.lindgren@gmail.com> */
+UNUSUAL_DEV( 0x0bc2, 0x3332, 0x0000, 0x9999,
+ "Seagate",
+ "External",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_NO_WP_DETECT ),
+
UNUSUAL_DEV( 0x0d49, 0x7310, 0x0000, 0x9999,
"Maxtor",
"USB to SATA",
diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c
index e75bbe5a10cd..1212b4b3c5a9 100644
--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -827,6 +827,8 @@ static int hwarc_probe(struct usb_interface *iface,

if (iface->cur_altsetting->desc.bNumEndpoints < 1)
return -ENODEV;
+ if (!usb_endpoint_xfer_int(&iface->cur_altsetting->endpoint[0].desc))
+ return -ENODEV;

result = -ENOMEM;
uwb_rc = uwb_rc_alloc();
diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c
index bdcb13cc1d54..5c9828370217 100644
--- a/drivers/uwb/uwbd.c
+++ b/drivers/uwb/uwbd.c
@@ -303,18 +303,22 @@ static int uwbd(void *param)
/** Start the UWB daemon */
void uwbd_start(struct uwb_rc *rc)
{
- rc->uwbd.task = kthread_run(uwbd, rc, "uwbd");
- if (rc->uwbd.task == NULL)
+ struct task_struct *task = kthread_run(uwbd, rc, "uwbd");
+ if (IS_ERR(task)) {
+ rc->uwbd.task = NULL;
printk(KERN_ERR "UWB: Cannot start management daemon; "
"UWB won't work\n");
- else
+ } else {
+ rc->uwbd.task = task;
rc->uwbd.pid = rc->uwbd.task->pid;
+ }
}

/* Stop the UWB daemon and free any unprocessed events */
void uwbd_stop(struct uwb_rc *rc)
{
- kthread_stop(rc->uwbd.task);
+ if (rc->uwbd.task)
+ kthread_stop(rc->uwbd.task);
uwbd_flush(rc);
}

diff --git a/fs/block_dev.c b/fs/block_dev.c
index ab8652b89577..6b9811823b72 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -419,10 +419,12 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
return -EOPNOTSUPP;
set_page_writeback(page);
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, rw);
- if (result)
+ if (result) {
end_page_writeback(page);
- else
+ } else {
+ clean_page_buffers(page);
unlock_page(page);
+ }
return result;
}
EXPORT_SYMBOL_GPL(bdev_write_page);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 04972508c98b..10d36d0dae33 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2745,9 +2745,9 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
}
mutex_unlock(&fs_devices->device_list_mutex);

- fi_args->nodesize = root->fs_info->super_copy->nodesize;
- fi_args->sectorsize = root->fs_info->super_copy->sectorsize;
- fi_args->clone_alignment = root->fs_info->super_copy->sectorsize;
+ fi_args->nodesize = root->nodesize;
+ fi_args->sectorsize = root->sectorsize;
+ fi_args->clone_alignment = root->sectorsize;

if (copy_to_user(arg, fi_args, sizeof(*fi_args)))
ret = -EFAULT;
@@ -3980,6 +3980,10 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
ret = PTR_ERR(new_root);
goto out;
}
+ if (!is_fstree(new_root->objectid)) {
+ ret = -ENOENT;
+ goto out;
+ }

path = btrfs_alloc_path();
if (!path) {
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 281358942b64..a0bf3f135a92 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1294,7 +1294,7 @@ exit_cifs(void)
exit_cifs_idmap();
#endif
#ifdef CONFIG_CIFS_UPCALL
- unregister_key_type(&cifs_spnego_key_type);
+ exit_cifs_spnego();
#endif
cifs_destroy_request_bufs();
cifs_destroy_mids();
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2959522238c5..d7be06289ff8 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3956,6 +3956,14 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
cifs_dbg(FYI, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d\n",
server->sec_mode, server->capabilities, server->timeAdj);

+ if (ses->auth_key.response) {
+ cifs_dbg(VFS, "Free previous auth_key.response = %p\n",
+ ses->auth_key.response);
+ kfree(ses->auth_key.response);
+ ses->auth_key.response = NULL;
+ ses->auth_key.len = 0;
+ }
+
if (server->ops->sess_setup)
rc = server->ops->sess_setup(xid, ses, nls_info);

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0ae3f55290e9..a1feb13c7590 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -225,6 +225,13 @@ cifs_nt_open(char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;

+ /* O_SYNC also has bit for O_DSYNC so following check picks up either */
+ if (f_flags & O_SYNC)
+ create_options |= CREATE_WRITE_THROUGH;
+
+ if (f_flags & O_DIRECT)
+ create_options |= CREATE_NO_BUFFER;
+
oparms.tcon = tcon;
oparms.cifs_sb = cifs_sb;
oparms.desired_access = desired_access;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 8add863a81fd..038e428b5173 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -479,22 +479,29 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
{
int rc = 0;
struct validate_negotiate_info_req vneg_inbuf;
- struct validate_negotiate_info_rsp *pneg_rsp;
+ struct validate_negotiate_info_rsp *pneg_rsp = NULL;
u32 rsplen;

cifs_dbg(FYI, "validate negotiate\n");

/*
* validation ioctl must be signed, so no point sending this if we
- * can not sign it. We could eventually change this to selectively
+ * can not sign it (ie are not known user). Even if signing is not
+ * required (enabled but not negotiated), in those cases we selectively
* sign just this, the first and only signed request on a connection.
- * This is good enough for now since a user who wants better security
- * would also enable signing on the mount. Having validation of
- * negotiate info for signed connections helps reduce attack vectors
+ * Having validation of negotiate info helps reduce attack vectors.
*/
- if (tcon->ses->server->sign == false)
+ if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
return 0; /* validation requires signing */

+ if (tcon->ses->user_name == NULL) {
+ cifs_dbg(FYI, "Can't validate negotiate: null user mount\n");
+ return 0; /* validation requires signing */
+ }
+
+ if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
+ cifs_dbg(VFS, "Unexpected null user (anonymous) auth flag sent by server\n");
+
vneg_inbuf.Capabilities =
cpu_to_le32(tcon->ses->server->vals->req_capabilities);
memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid,
@@ -528,8 +535,9 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
rsplen);

/* relax check since Mac returns max bufsize allowed on ioctl */
- if (rsplen > CIFSMaxBufSize)
- return -EIO;
+ if ((rsplen > CIFSMaxBufSize)
+ || (rsplen < sizeof(struct validate_negotiate_info_rsp)))
+ goto err_rsp_free;
}

/* check validate negotiate info response matches what we got earlier */
@@ -548,10 +556,13 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)

/* validate negotiate successful */
cifs_dbg(FYI, "validate negotiate info successful\n");
+ kfree(pneg_rsp);
return 0;

vneg_out:
cifs_dbg(VFS, "protocol revalidation - security settings mismatch\n");
+err_rsp_free:
+ kfree(pneg_rsp);
return -EIO;
}

@@ -1114,7 +1125,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
struct TCP_Server_Info *server;
struct cifs_tcon *tcon = oparms->tcon;
struct cifs_ses *ses = tcon->ses;
- struct kvec iov[4];
+ struct kvec iov[4] = {{NULL, 0}};
int resp_buftype;
int uni_path_len;
__le16 *copy_path = NULL;
@@ -1215,7 +1226,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,

if (rc != 0) {
cifs_stats_fail_inc(tcon, SMB2_CREATE_HE);
- if (err_buf)
+ if (err_buf && rsp)
*err_buf = kmemdup(rsp, get_rfc1002_length(rsp) + 4,
GFP_KERNEL);
goto creat_exit;
@@ -1331,6 +1342,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
} else
iov[0].iov_len = get_rfc1002_length(req) + 4;

+ /* validate negotiate request must be signed - see MS-SMB2 3.2.5.5 */
+ if (opcode == FSCTL_VALIDATE_NEGOTIATE_INFO)
+ req->hdr.Flags |= SMB2_FLAGS_SIGNED;

rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);
rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index e181b6b2e297..a325d8c5ec2d 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -812,7 +812,8 @@ submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page,
*/
if (sdio->boundary) {
ret = dio_send_cur_page(dio, sdio, map_bh);
- dio_bio_submit(dio, sdio);
+ if (sdio->bio)
+ dio_bio_submit(dio, sdio);
page_cache_release(sdio->cur_page);
sdio->cur_page = NULL;
}
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 90d1882b306f..4682bef34bb6 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -84,11 +84,16 @@ struct ecryptfs_page_crypt_context {
static inline struct ecryptfs_auth_tok *
ecryptfs_get_encrypted_key_payload_data(struct key *key)
{
- if (key->type == &key_type_encrypted)
- return (struct ecryptfs_auth_tok *)
- (&((struct encrypted_key_payload *)key->payload.data)->payload_data);
- else
+ struct encrypted_key_payload *payload;
+
+ if (key->type != &key_type_encrypted)
return NULL;
+
+ payload = key->payload.data;
+ if (!payload)
+ return ERR_PTR(-EKEYREVOKED);
+
+ return (struct ecryptfs_auth_tok *)payload->payload_data;
}

static inline struct key *ecryptfs_get_encrypted_key(char *sig)
@@ -114,13 +119,17 @@ static inline struct ecryptfs_auth_tok *
ecryptfs_get_key_payload_data(struct key *key)
{
struct ecryptfs_auth_tok *auth_tok;
+ struct user_key_payload *ukp;

auth_tok = ecryptfs_get_encrypted_key_payload_data(key);
- if (!auth_tok)
- return (struct ecryptfs_auth_tok *)
- (((struct user_key_payload *)key->payload.data)->data);
- else
+ if (auth_tok)
return auth_tok;
+
+ ukp = key->payload.data;
+ if (!ukp)
+ return ERR_PTR(-EKEYREVOKED);
+
+ return (struct ecryptfs_auth_tok *)ukp->data;
}

#define ECRYPTFS_MAX_KEYSET_SIZE 1024
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 4725a07f003c..bb10b3158b49 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -459,7 +459,8 @@ static int ecryptfs_verify_version(u16 version)
* @auth_tok_key: key containing the authentication token
* @auth_tok: authentication token
*
- * Returns zero on valid auth tok; -EINVAL otherwise
+ * Returns zero on valid auth tok; -EINVAL if the payload is invalid; or
+ * -EKEYREVOKED if the key was revoked before we acquired its semaphore.
*/
static int
ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
@@ -468,6 +469,12 @@ ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
int rc = 0;

(*auth_tok) = ecryptfs_get_key_payload_data(auth_tok_key);
+ if (IS_ERR(*auth_tok)) {
+ rc = PTR_ERR(*auth_tok);
+ *auth_tok = NULL;
+ goto out;
+ }
+
if (ecryptfs_verify_version((*auth_tok)->version)) {
printk(KERN_ERR "Data structure version mismatch. Userspace "
"tools must match eCryptfs kernel module with major "
diff --git a/fs/exec.c b/fs/exec.c
index fa3604731bae..70c31796a314 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -56,6 +56,7 @@
#include <linux/pipe_fs_i.h>
#include <linux/oom.h>
#include <linux/compat.h>
+#include <linux/user_namespace.h>

#include <asm/uaccess.h>
#include <asm/mmu_context.h>
@@ -1129,8 +1130,22 @@ EXPORT_SYMBOL(flush_old_exec);

void would_dump(struct linux_binprm *bprm, struct file *file)
{
- if (inode_permission(file_inode(file), MAY_READ) < 0)
+ struct inode *inode = file_inode(file);
+ if (inode_permission(inode, MAY_READ) < 0) {
+ struct user_namespace *old, *user_ns;
bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+
+ /* Ensure mm->user_ns contains the executable */
+ user_ns = old = bprm->mm->user_ns;
+ while ((user_ns != &init_user_ns) &&
+ !privileged_wrt_inode_uidgid(user_ns, inode))
+ user_ns = user_ns->parent;
+
+ if (old != user_ns) {
+ bprm->mm->user_ns = get_user_ns(user_ns);
+ put_user_ns(old);
+ }
+ }
}
EXPORT_SYMBOL(would_dump);

@@ -1160,7 +1175,6 @@ void setup_new_exec(struct linux_binprm * bprm)
!gid_eq(bprm->cred->gid, current_egid())) {
current->pdeath_signal = 0;
} else {
- would_dump(bprm, bprm->file);
if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)
set_dumpable(current->mm, suid_dumpable);
}
@@ -1259,7 +1273,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
unsigned n_fs;

if (p->ptrace) {
- if (p->ptrace & PT_PTRACE_CAP)
+ if (ptracer_capable(p, current_user_ns()))
bprm->unsafe |= LSM_UNSAFE_PTRACE_CAP;
else
bprm->unsafe |= LSM_UNSAFE_PTRACE;
@@ -1564,6 +1578,8 @@ static int do_execve_common(struct filename *filename,
if (retval < 0)
goto out;

+ would_dump(bprm, bprm->file);
+
retval = exec_binprm(bprm);
if (retval < 0)
goto out;
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index b8179ca6bf9d..8a96aeb2391f 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -330,6 +330,13 @@ static void fscache_objlist_config(struct fscache_objlist_data *data)
rcu_read_lock();

confkey = key->payload.data;
+ if (!confkey) {
+ /* key was revoked */
+ rcu_read_unlock();
+ key_put(key);
+ goto no_config;
+ }
+
buf = confkey->data;

for (len = confkey->datalen - 1; len >= 0; len--) {
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index a5c32420bfc8..373494f247b1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1382,7 +1382,8 @@ static int parse_dirplusfile(char *buf, size_t nbytes, struct file *file,
*/
over = !dir_emit(ctx, dirent->name, dirent->namelen,
dirent->ino, dirent->type);
- ctx->pos = dirent->off;
+ if (!over)
+ ctx->pos = dirent->off;
}

buf += reclen;
diff --git a/fs/mpage.c b/fs/mpage.c
index 5f9ed622274f..895ee9af5be3 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -457,6 +457,16 @@ static void clean_buffers(struct page *page, unsigned first_unmapped)
try_to_free_buffers(page);
}

+/*
+ * For situations where we want to clean all buffers attached to a page.
+ * We don't need to calculate how many buffers are attached to the page,
+ * we just need to specify a number larger than the maximum number of buffers.
+ */
+void clean_page_buffers(struct page *page)
+{
+ clean_buffers(page, ~0U);
+}
+
static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
void *data)
{
@@ -594,10 +604,8 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
if (bio == NULL) {
if (first_unmapped == blocks_per_page) {
if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
- page, wbc)) {
- clean_buffers(page, first_unmapped);
+ page, wbc))
goto out;
- }
}
bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH);
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 9d8fcf2f3b94..296f48c6f43d 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7226,13 +7226,24 @@ int ocfs2_truncate_inline(struct inode *inode, struct buffer_head *di_bh,

static int ocfs2_trim_extent(struct super_block *sb,
struct ocfs2_group_desc *gd,
- u32 start, u32 count)
+ u64 group, u32 start, u32 count)
{
u64 discard, bcount;
+ struct ocfs2_super *osb = OCFS2_SB(sb);

bcount = ocfs2_clusters_to_blocks(sb, count);
- discard = le64_to_cpu(gd->bg_blkno) +
- ocfs2_clusters_to_blocks(sb, start);
+ discard = ocfs2_clusters_to_blocks(sb, start);
+
+ /*
+ * For the first cluster group, the gd->bg_blkno is not at the start
+ * of the group, but at an offset from the start. If we add it while
+ * calculating discard for first group, we will wrongly start fstrim a
+ * few blocks after the desried start block and the range can cross
+ * over into the next cluster group. So, add it only if this is not
+ * the first cluster group.
+ */
+ if (group != osb->first_cluster_group_blkno)
+ discard += le64_to_cpu(gd->bg_blkno);

trace_ocfs2_trim_extent(sb, (unsigned long long)discard, bcount);

@@ -7240,7 +7251,7 @@ static int ocfs2_trim_extent(struct super_block *sb,
}

static int ocfs2_trim_group(struct super_block *sb,
- struct ocfs2_group_desc *gd,
+ struct ocfs2_group_desc *gd, u64 group,
u32 start, u32 max, u32 minbits)
{
int ret = 0, count = 0, next;
@@ -7259,7 +7270,7 @@ static int ocfs2_trim_group(struct super_block *sb,
next = ocfs2_find_next_bit(bitmap, max, start);

if ((next - start) >= minbits) {
- ret = ocfs2_trim_extent(sb, gd,
+ ret = ocfs2_trim_extent(sb, gd, group,
start, next - start);
if (ret < 0) {
mlog_errno(ret);
@@ -7357,7 +7368,8 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
}

gd = (struct ocfs2_group_desc *)gd_bh->b_data;
- cnt = ocfs2_trim_group(sb, gd, first_bit, last_bit, minlen);
+ cnt = ocfs2_trim_group(sb, gd, group,
+ first_bit, last_bit, minlen);
brelse(gd_bh);
gd_bh = NULL;
if (cnt < 0) {
diff --git a/fs/read_write.c b/fs/read_write.c
index 009d8542a889..07053752c148 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -116,7 +116,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
* In the generic case the entire file is data, so as long as
* offset isn't at the end of the file then the offset is data.
*/
- if (offset >= eof)
+ if ((unsigned long long)offset >= eof)
return -ENXIO;
break;
case SEEK_HOLE:
@@ -124,7 +124,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
* There is a virtual hole at the end of the file, so as long as
* offset isn't i_size or larger, return i_size.
*/
- if (offset >= eof)
+ if ((unsigned long long)offset >= eof)
return -ENXIO;
offset = eof;
break;
diff --git a/fs/xattr.c b/fs/xattr.c
index 7325e2ecbae9..6b57cbd8c962 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -163,7 +163,7 @@ xattr_getsecurity(struct inode *inode, const char *name, void *value,
}
memcpy(value, buffer, len);
out:
- security_release_secctx(buffer, len);
+ kfree(buffer);
out_noalloc:
return len;
}
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 66fc42c57aff..27f5fa488ad0 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -83,6 +83,14 @@ int ahash_register_instance(struct crypto_template *tmpl,
struct ahash_instance *inst);
void ahash_free_instance(struct crypto_instance *inst);

+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+
+static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+ return alg->setkey != shash_no_setkey;
+}
+
int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
struct hash_alg_common *alg,
struct crypto_instance *inst);
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index e6797ded700e..f8d39f7a56f2 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -222,6 +222,7 @@ int generic_write_end(struct file *, struct address_space *,
loff_t, unsigned, unsigned,
struct page *, void *);
void page_zero_new_buffers(struct page *page, unsigned from, unsigned to);
+void clean_page_buffers(struct page *page);
int cont_write_begin(struct file *, struct address_space *, loff_t,
unsigned, unsigned, struct page **, void **,
get_block_t *, loff_t *);
diff --git a/include/linux/capability.h b/include/linux/capability.h
index aa93e5ef594c..4a12b8d51f1b 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -213,8 +213,10 @@ extern bool has_ns_capability_noaudit(struct task_struct *t,
struct user_namespace *ns, int cap);
extern bool capable(int cap);
extern bool ns_capable(struct user_namespace *ns, int cap);
+extern bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode);
extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
+extern bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns);

/* audit system wants to get cap info from files as well */
extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index e7fdec4db9da..6cc48ac55fd2 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -111,6 +111,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
unsigned int size, unsigned int *val);

+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+ unsigned int reset_length);
+
int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *val);
int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
diff --git a/include/linux/input.h b/include/linux/input.h
index 82ce323b9986..25476b19ea54 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -527,6 +527,7 @@ int input_ff_event(struct input_dev *dev, unsigned int type, unsigned int code,

int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, struct file *file);
int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file);
+int input_ff_flush(struct input_dev *dev, struct file *file);

int input_ff_create_memless(struct input_dev *dev, void *data,
int (*play_effect)(struct input_dev *, void *, struct ff_effect *));
diff --git a/include/linux/key.h b/include/linux/key.h
index 017b0826642f..f04f6dd6c6f7 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -170,6 +170,7 @@ struct key {
#define KEY_FLAG_INVALIDATED 7 /* set if key has been invalidated */
#define KEY_FLAG_TRUSTED 8 /* set if key is trusted */
#define KEY_FLAG_TRUSTED_ONLY 9 /* set if keyring only accepts links to trusted keys */
+#define KEY_FLAG_UID_KEYRING 11 /* set if key is a user or user session keyring */

/* the key type and key description string
* - the desc is used to match a key against search criteria
@@ -221,6 +222,7 @@ extern struct key *key_alloc(struct key_type *type,
#define KEY_ALLOC_QUOTA_OVERRUN 0x0001 /* add to quota, permit even if overrun */
#define KEY_ALLOC_NOT_IN_QUOTA 0x0002 /* not in quota */
#define KEY_ALLOC_TRUSTED 0x0004 /* Key should be flagged as trusted */
+#define KEY_ALLOC_UID_KEYRING 0x0010 /* allocating a user or user session keyring */

extern void key_revoke(struct key *key);
extern void key_invalidate(struct key *key);
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index 550c88fb0267..0ae20395bf5a 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -29,8 +29,8 @@ struct mbus_dram_target_info
struct mbus_dram_window {
u8 cs_index;
u8 mbus_attr;
- u32 base;
- u32 size;
+ u64 base;
+ u64 size;
} cs[4];
};

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 35f8b59b37a7..65a4dc2da9de 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1209,6 +1209,8 @@ static inline int fixup_user_fault(struct task_struct *tsk,
extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
void *buf, int len, int write);
+extern int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+ unsigned long addr, void *buf, int len, int write);

long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 761fc630f150..489c1307f81e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -419,6 +419,7 @@ struct mm_struct {
*/
struct task_struct __rcu *owner;
#endif
+ struct user_namespace *user_ns;

/* store ref to file /proc/<pid>/exe symlink points to */
struct file *exe_file;
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 6cbd1b6c3d20..c7eb42235fbe 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1094,8 +1094,14 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
#error Allocator MAX_ORDER exceeds SECTION_SIZE
#endif

-#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
-#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
+static inline unsigned long pfn_to_section_nr(unsigned long pfn)
+{
+ return pfn >> PFN_SECTION_SHIFT;
+}
+static inline unsigned long section_nr_to_pfn(unsigned long sec)
+{
+ return sec << PFN_SECTION_SHIFT;
+}

#define SECTION_ALIGN_UP(pfn) (((pfn) + PAGES_PER_SECTION - 1) & PAGE_SECTION_MASK)
#define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e5145f8e4004..1d2c25984890 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3000,6 +3000,9 @@ void ether_setup(struct net_device *dev);
struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
void (*setup)(struct net_device *),
unsigned int txqs, unsigned int rxqs);
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+ const char *name);
+
#define alloc_netdev(sizeof_priv, name, setup) \
alloc_netdev_mqs(sizeof_priv, name, setup, 1, 1)

diff --git a/include/linux/of.h b/include/linux/of.h
index 55452d38ae06..0c220cf91e92 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -503,6 +503,16 @@ static inline struct device_node *of_get_cpu_node(int cpu,
return NULL;
}

+static inline int of_n_addr_cells(struct device_node *np)
+{
+ return 0;
+
+}
+static inline int of_n_size_cells(struct device_node *np)
+{
+ return 0;
+}
+
static inline int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value)
{
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 32709bcecfdd..0117cdf84e95 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -520,6 +520,8 @@
#define PCI_DEVICE_ID_AMD_15H_M10H_F3 0x1403
#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F3 0x141d
#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F4 0x141e
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F3 0x1573
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F4 0x1574
#define PCI_DEVICE_ID_AMD_15H_NB_F0 0x1600
#define PCI_DEVICE_ID_AMD_15H_NB_F1 0x1601
#define PCI_DEVICE_ID_AMD_15H_NB_F2 0x1602
diff --git a/include/linux/preempt_mask.h b/include/linux/preempt_mask.h
index 5cb25f17331a..7ee3562f70f4 100644
--- a/include/linux/preempt_mask.h
+++ b/include/linux/preempt_mask.h
@@ -57,19 +57,24 @@

/*
* Are we doing bottom half or hardware interrupt processing?
- * Are we in a softirq context? Interrupt context?
- * in_softirq - Are we currently processing softirq or have bh disabled?
- * in_serving_softirq - Are we currently processing softirq?
+ *
+ * in_irq() - We're in (hard) IRQ context
+ * in_softirq() - We have BH disabled, or are processing softirqs
+ * in_interrupt() - We're in NMI,IRQ,SoftIRQ context or have BH disabled
+ * in_serving_softirq() - We're in softirq context
+ * in_nmi() - We're in NMI context
+ * in_task() - We're in task context
+ *
+ * Note: due to the BH disabled confusion: in_softirq(),in_interrupt() really
+ * should not be used in new code.
*/
#define in_irq() (hardirq_count())
#define in_softirq() (softirq_count())
#define in_interrupt() (irq_count())
#define in_serving_softirq() (softirq_count() & SOFTIRQ_OFFSET)
-
-/*
- * Are we in NMI context?
- */
-#define in_nmi() (preempt_count() & NMI_MASK)
+#define in_nmi() (preempt_count() & NMI_MASK)
+#define in_task() (!(preempt_count() & \
+ (NMI_MASK | HARDIRQ_MASK | SOFTIRQ_OFFSET)))

/*
* The preempt_count offset after preempt_disable();
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 608d90444b6f..5af4994cac23 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -8,6 +8,9 @@
#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
#include <uapi/linux/ptrace.h>

+extern int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+ void *buf, int len, int write);
+
/*
* Ptrace flags
*
@@ -19,7 +22,6 @@
#define PT_SEIZED 0x00010000 /* SEIZE used, enable new behavior */
#define PT_PTRACED 0x00000001
#define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */
-#define PT_PTRACE_CAP 0x00000004 /* ptracer can follow suid-exec */

#define PT_OPT_FLAG_SHIFT 3
/* PT_TRACE_* event enable flags */
@@ -50,7 +52,8 @@ extern int ptrace_request(struct task_struct *child, long request,
unsigned long addr, unsigned long data);
extern void ptrace_notify(int exit_code);
extern void __ptrace_link(struct task_struct *child,
- struct task_struct *new_parent);
+ struct task_struct *new_parent,
+ const struct cred *ptracer_cred);
extern void __ptrace_unlink(struct task_struct *child);
extern void exit_ptrace(struct task_struct *tracer);
#define PTRACE_MODE_READ 0x01
@@ -202,7 +205,7 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace)

if (unlikely(ptrace) && current->ptrace) {
child->ptrace = current->ptrace;
- __ptrace_link(child, current->parent);
+ __ptrace_link(child, current->parent, current->ptracer_cred);

if (child->ptrace & PT_SEIZED)
task_set_jobctl_pending(child, JOBCTL_TRAP_STOP);
@@ -211,6 +214,8 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace)

set_tsk_thread_flag(child, TIF_SIGPENDING);
}
+ else
+ child->ptracer_cred = NULL;
}

/**
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 25ad8f0bbdcb..ca9589027893 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1385,6 +1385,7 @@ struct task_struct {
struct list_head cpu_timers[3];

/* process credentials */
+ const struct cred __rcu *ptracer_cred; /* Tracer's credentials at attach */
const struct cred __rcu *real_cred; /* objective and real subjective task
* credentials (COW) */
const struct cred __rcu *cred; /* effective (overridable) subjective task
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 63c9d381e0d9..93431a42f2f9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2965,6 +2965,13 @@ static inline void nf_reset_trace(struct sk_buff *skb)
#endif
}

+static inline void ipvs_reset(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_IP_VS)
+ skb->ipvs_property = 0;
+#endif
+}
+
/* Note: This doesn't put any conntrack and bridge info in dst. */
static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
{
diff --git a/include/net/protocol.h b/include/net/protocol.h
index d6fcc1fcdb5b..035971919ced 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -39,7 +39,7 @@

/* This is used to register protocols. */
struct net_protocol {
- void (*early_demux)(struct sk_buff *skb);
+ int (*early_demux)(struct sk_buff *skb);
int (*handler)(struct sk_buff *skb);
void (*err_handler)(struct sk_buff *skb, u32 info);
unsigned int no_policy:1,
diff --git a/include/net/route.h b/include/net/route.h
index b17cf28f996e..671d5b1c813b 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -159,7 +159,9 @@ static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4
fl4->fl4_gre_key = gre_key;
return ip_route_output_key(net, fl4);
}
-
+int ip_mc_validate_source(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+ u8 tos, struct net_device *dev,
+ struct in_device *in_dev, u32 *itag);
int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
u8 tos, struct net_device *devin);

diff --git a/include/net/tcp.h b/include/net/tcp.h
index ceaa03fdccf2..6f404e98876a 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -350,7 +350,7 @@ void tcp_v4_err(struct sk_buff *skb, u32);

void tcp_shutdown(struct sock *sk, int how);

-void tcp_v4_early_demux(struct sk_buff *skb);
+int tcp_v4_early_demux(struct sk_buff *skb);
int tcp_v4_rcv(struct sk_buff *skb);

int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
@@ -1515,12 +1515,12 @@ static inline void tcp_highest_sack_reset(struct sock *sk)
tcp_sk(sk)->highest_sack = tcp_write_queue_head(sk);
}

-/* Called when old skb is about to be deleted (to be combined with new skb) */
-static inline void tcp_highest_sack_combine(struct sock *sk,
+/* Called when old skb is about to be deleted and replaced by new skb */
+static inline void tcp_highest_sack_replace(struct sock *sk,
struct sk_buff *old,
struct sk_buff *new)
{
- if (tcp_sk(sk)->sacked_out && (old == tcp_sk(sk)->highest_sack))
+ if (old == tcp_highest_sack(sk))
tcp_sk(sk)->highest_sack = new;
}

diff --git a/include/net/udp.h b/include/net/udp.h
index 68a1fefe3dfe..12f4f5b02986 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -177,7 +177,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
unsigned int hash2_nulladdr);

/* net/ipv4/udp.c */
-void udp_v4_early_demux(struct sk_buff *skb);
+int udp_v4_early_demux(struct sk_buff *skb);
int udp_get_port(struct sock *sk, unsigned short snum,
int (*saddr_cmp)(const struct sock *,
const struct sock *));
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 6868a5ca183c..ab5bfaa8f9de 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -175,6 +175,7 @@ struct scsi_device {
unsigned wce_default_on:1; /* Cache is ON by default */
unsigned no_dif:1; /* T10 PI (DIF) should be disabled */
unsigned broken_fua:1; /* Don't set FUA bit */
+ unsigned unmap_limit_for_ws:1; /* Use the UNMAP limit for WRITE SAME */

atomic_t disk_events_disable_depth; /* disable depth for disk events */

diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 96e3f56519e7..b29faa3471ed 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -37,5 +37,6 @@
#define BLIST_TRY_VPD_PAGES 0x10000000 /* Attempt to read VPD pages */
#define BLIST_NO_RSOC 0x20000000 /* don't try to issue RSOC */
#define BLIST_MAX_1024 0x40000000 /* maximum 1024 sector cdb length */
+#define BLIST_UNMAP_LIMIT_WS 0x80000000 /* Use UNMAP limit for WRITE SAME */

#endif
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h
index 2398521f0998..d06bb8109cdc 100644
--- a/include/sound/seq_kernel.h
+++ b/include/sound/seq_kernel.h
@@ -55,7 +55,8 @@ typedef union snd_seq_timestamp snd_seq_timestamp_t;
#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200

/* max delivery path length */
-#define SNDRV_SEQ_MAX_HOPS 10
+/* NOTE: this shouldn't be greater than MAX_LOCKDEP_SUBCLASSES */
+#define SNDRV_SEQ_MAX_HOPS 8

/* max size of event size */
#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
diff --git a/include/sound/seq_virmidi.h b/include/sound/seq_virmidi.h
index a03acd0d398a..695257ae64ac 100644
--- a/include/sound/seq_virmidi.h
+++ b/include/sound/seq_virmidi.h
@@ -60,6 +60,7 @@ struct snd_virmidi_dev {
int port; /* created/attached port */
unsigned int flags; /* SNDRV_VIRMIDI_* */
rwlock_t filelist_lock;
+ struct rw_semaphore filelist_sem;
struct list_head filelist;
};

diff --git a/include/sound/timer.h b/include/sound/timer.h
index 7990469a44ce..b0489b850c93 100644
--- a/include/sound/timer.h
+++ b/include/sound/timer.h
@@ -90,6 +90,8 @@ struct snd_timer {
struct list_head ack_list_head;
struct list_head sack_list_head; /* slow ack list head */
struct tasklet_struct task_queue;
+ int max_instances; /* upper limit of timer instances */
+ int num_instances; /* current number of timer instances */
};

struct snd_timer_instance {
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 131a0bda7aec..bb71db2d884d 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -163,7 +163,7 @@ TRACE_EVENT(kvm_ack_irq,
{ KVM_TRACE_MMIO_WRITE, "write" }

TRACE_EVENT(kvm_mmio,
- TP_PROTO(int type, int len, u64 gpa, u64 val),
+ TP_PROTO(int type, int len, u64 gpa, void *val),
TP_ARGS(type, len, gpa, val),

TP_STRUCT__entry(
@@ -177,7 +177,10 @@ TRACE_EVENT(kvm_mmio,
__entry->type = type;
__entry->len = len;
__entry->gpa = gpa;
- __entry->val = val;
+ __entry->val = 0;
+ if (val)
+ memcpy(&__entry->val, val,
+ min_t(u32, sizeof(__entry->val), len));
),

TP_printk("mmio %s len %u gpa 0x%llx val 0x%llx",
diff --git a/include/uapi/linux/spi/spidev.h b/include/uapi/linux/spi/spidev.h
index dd5f21e75805..856de39d0b89 100644
--- a/include/uapi/linux/spi/spidev.h
+++ b/include/uapi/linux/spi/spidev.h
@@ -23,6 +23,7 @@
#define SPIDEV_H

#include <linux/types.h>
+#include <linux/ioctl.h>

/* User space versions of kernel symbols for SPI clocking modes,
* matching <linux/spi/spi.h>
diff --git a/kernel/capability.c b/kernel/capability.c
index 989f5bfc57dc..4a840b038303 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -427,6 +427,19 @@ bool capable(int cap)
}
EXPORT_SYMBOL(capable);

+/**
+ * privileged_wrt_inode_uidgid - Do capabilities in the namespace work over the inode?
+ * @ns: The user namespace in question
+ * @inode: The inode in question
+ *
+ * Return true if the inode uid and gid are within the namespace.
+ */
+bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode)
+{
+ return kuid_has_mapping(ns, inode->i_uid) &&
+ kgid_has_mapping(ns, inode->i_gid);
+}
+
/**
* capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
* @inode: The inode in question
@@ -440,7 +453,26 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
{
struct user_namespace *ns = current_user_ns();

- return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
- kgid_has_mapping(ns, inode->i_gid);
+ return ns_capable(ns, cap) && privileged_wrt_inode_uidgid(ns, inode);
}
EXPORT_SYMBOL(capable_wrt_inode_uidgid);
+
+/**
+ * ptracer_capable - Determine if the ptracer holds CAP_SYS_PTRACE in the namespace
+ * @tsk: The task that may be ptraced
+ * @ns: The user namespace to search for CAP_SYS_PTRACE in
+ *
+ * Return true if the task that is ptracing the current task had CAP_SYS_PTRACE
+ * in the specified user namespace.
+ */
+bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns)
+{
+ int ret = 0; /* An absent tracer adds no restrictions */
+ const struct cred *cred;
+ rcu_read_lock();
+ cred = rcu_dereference(tsk->ptracer_cred);
+ if (cred)
+ ret = security_capable_noaudit(cred, ns, CAP_SYS_PTRACE);
+ rcu_read_unlock();
+ return (ret == 0);
+}
diff --git a/kernel/fork.c b/kernel/fork.c
index f6422f07d133..0a2f907b1302 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -527,7 +527,8 @@ static void mm_init_aio(struct mm_struct *mm)
#endif
}

-static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
+static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
+ struct user_namespace *user_ns)
{
atomic_set(&mm->mm_users, 1);
atomic_set(&mm->mm_count, 1);
@@ -551,6 +552,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)

if (likely(!mm_alloc_pgd(mm))) {
mmu_notifier_mm_init(mm);
+ mm->user_ns = get_user_ns(user_ns);
return mm;
}

@@ -588,7 +590,7 @@ struct mm_struct *mm_alloc(void)

memset(mm, 0, sizeof(*mm));
mm_init_cpumask(mm);
- return mm_init(mm, current);
+ return mm_init(mm, current, current_user_ns());
}

/*
@@ -603,6 +605,7 @@ void __mmdrop(struct mm_struct *mm)
destroy_context(mm);
mmu_notifier_mm_destroy(mm);
check_mm(mm);
+ put_user_ns(mm->user_ns);
free_mm(mm);
}
EXPORT_SYMBOL_GPL(__mmdrop);
@@ -822,7 +825,7 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)
#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
mm->pmd_huge_pte = NULL;
#endif
- if (!mm_init(mm, tsk))
+ if (!mm_init(mm, tsk, mm->user_ns))
goto fail_nomem;

if (init_new_context(tsk, mm))
diff --git a/kernel/params.c b/kernel/params.c
index 1e52ca233fd9..20b5f8fe7eef 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -581,7 +581,7 @@ EXPORT_SYMBOL(__kernel_param_unlock);
/*
* add_sysfs_param - add a parameter to sysfs
* @mk: struct module_kobject
- * @kparam: the actual parameter definition to add to sysfs
+ * @kp: the actual parameter definition to add to sysfs
* @name: name of parameter
*
* Create a kobject if for a (per-module) parameter if mp NULL, and
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 7660e8eae6f6..96a418e507e6 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -27,6 +27,35 @@
#include <linux/cn_proc.h>
#include <linux/compat.h>

+/*
+ * Access another process' address space via ptrace.
+ * Source/target buffer must be kernel space,
+ * Do not walk the page table directly, use get_user_pages
+ */
+int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+ void *buf, int len, int write)
+{
+ struct mm_struct *mm;
+ int ret;
+
+ mm = get_task_mm(tsk);
+ if (!mm)
+ return 0;
+
+ if (!tsk->ptrace ||
+ (current != tsk->parent) ||
+ ((get_dumpable(mm) != SUID_DUMP_USER) &&
+ !ptracer_capable(tsk, mm->user_ns))) {
+ mmput(mm);
+ return 0;
+ }
+
+ ret = __access_remote_vm(tsk, mm, addr, buf, len, write);
+ mmput(mm);
+
+ return ret;
+}
+

static int ptrace_trapping_sleep_fn(void *flags)
{
@@ -34,17 +63,26 @@ static int ptrace_trapping_sleep_fn(void *flags)
return 0;
}

+void __ptrace_link(struct task_struct *child, struct task_struct *new_parent,
+ const struct cred *ptracer_cred)
+{
+ BUG_ON(!list_empty(&child->ptrace_entry));
+ list_add(&child->ptrace_entry, &new_parent->ptraced);
+ child->parent = new_parent;
+ child->ptracer_cred = get_cred(ptracer_cred);
+}
+
/*
* ptrace a task: make the debugger its new parent and
* move it to the ptrace list.
*
* Must be called with the tasklist lock write-held.
*/
-void __ptrace_link(struct task_struct *child, struct task_struct *new_parent)
+static void ptrace_link(struct task_struct *child, struct task_struct *new_parent)
{
- BUG_ON(!list_empty(&child->ptrace_entry));
- list_add(&child->ptrace_entry, &new_parent->ptraced);
- child->parent = new_parent;
+ rcu_read_lock();
+ __ptrace_link(child, new_parent, __task_cred(new_parent));
+ rcu_read_unlock();
}

/**
@@ -77,14 +115,17 @@ void __ptrace_link(struct task_struct *child, struct task_struct *new_parent)
*/
void __ptrace_unlink(struct task_struct *child)
{
+ const struct cred *old_cred;
BUG_ON(!child->ptrace);

- child->ptrace = 0;
child->parent = child->real_parent;
list_del_init(&child->ptrace_entry);
+ old_cred = child->ptracer_cred;
+ child->ptracer_cred = NULL;
+ put_cred(old_cred);

spin_lock(&child->sighand->siglock);
-
+ child->ptrace = 0;
/*
* Clear all pending traps and TRAPPING. TRAPPING should be
* cleared regardless of JOBCTL_STOP_PENDING. Do it explicitly.
@@ -231,7 +272,7 @@ static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
{
const struct cred *cred = current_cred(), *tcred;
- int dumpable = 0;
+ struct mm_struct *mm;
kuid_t caller_uid;
kgid_t caller_gid;

@@ -282,16 +323,11 @@ static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
return -EPERM;
ok:
rcu_read_unlock();
- smp_rmb();
- if (task->mm)
- dumpable = get_dumpable(task->mm);
- rcu_read_lock();
- if (dumpable != SUID_DUMP_USER &&
- !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
- rcu_read_unlock();
- return -EPERM;
- }
- rcu_read_unlock();
+ mm = task->mm;
+ if (mm &&
+ ((get_dumpable(mm) != SUID_DUMP_USER) &&
+ !ptrace_has_cap(mm->user_ns, mode)))
+ return -EPERM;

return security_ptrace_access_check(task, mode);
}
@@ -355,13 +391,9 @@ static int ptrace_attach(struct task_struct *task, long request,

if (seize)
flags |= PT_SEIZED;
- rcu_read_lock();
- if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
- flags |= PT_PTRACE_CAP;
- rcu_read_unlock();
task->ptrace = flags;

- __ptrace_link(task, current);
+ ptrace_link(task, current);

/* SEIZE doesn't trap tracee on attach */
if (!seize)
@@ -428,7 +460,7 @@ static int ptrace_traceme(void)
*/
if (!ret && !(current->real_parent->flags & PF_EXITING)) {
current->ptrace = PT_PTRACED;
- __ptrace_link(current, current->real_parent);
+ ptrace_link(current, current->real_parent);
}
}
write_unlock_irq(&tasklist_lock);
@@ -561,7 +593,8 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
int this_len, retval;

this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
- retval = access_process_vm(tsk, src, buf, this_len, 0);
+ retval = ptrace_access_vm(tsk, src, buf, this_len, 0);
+
if (!retval) {
if (copied)
break;
@@ -588,7 +621,7 @@ int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long ds
this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
if (copy_from_user(buf, src, this_len))
return -EFAULT;
- retval = access_process_vm(tsk, dst, buf, this_len, 1);
+ retval = ptrace_access_vm(tsk, dst, buf, this_len, 1);
if (!retval) {
if (copied)
break;
@@ -1133,7 +1166,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
unsigned long tmp;
int copied;

- copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
+ copied = ptrace_access_vm(tsk, addr, &tmp, sizeof(tmp), 0);
if (copied != sizeof(tmp))
return -EIO;
return put_user(tmp, (unsigned long __user *)data);
@@ -1144,7 +1177,7 @@ int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
{
int copied;

- copied = access_process_vm(tsk, addr, &data, sizeof(data), 1);
+ copied = ptrace_access_vm(tsk, addr, &data, sizeof(data), 1);
return (copied == sizeof(data)) ? 0 : -EIO;
}

@@ -1162,7 +1195,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
switch (request) {
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
- ret = access_process_vm(child, addr, &word, sizeof(word), 0);
+ ret = ptrace_access_vm(child, addr, &word, sizeof(word), 0);
if (ret != sizeof(word))
ret = -EIO;
else
@@ -1171,7 +1204,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,

case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data), 1);
+ ret = ptrace_access_vm(child, addr, &data, sizeof(data), 1);
ret = (ret != sizeof(data) ? -EIO : 0);
break;

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0940ee9603ae..e6c9458f4b49 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5782,14 +5782,14 @@ enum s_alloc {
static void
build_group_mask(struct sched_domain *sd, struct sched_group *sg, struct cpumask *mask)
{
- const struct cpumask *span = sched_domain_span(sd);
+ const struct cpumask *sg_span = sched_group_cpus(sg);
struct sd_data *sdd = sd->private;
struct sched_domain *sibling;
int i;

cpumask_clear(mask);

- for_each_cpu(i, span) {
+ for_each_cpu(i, sg_span) {
sibling = *per_cpu_ptr(sdd->sd, i);

/*
@@ -5801,7 +5801,7 @@ build_group_mask(struct sched_domain *sd, struct sched_group *sg, struct cpumask
continue;

/* If we would not end up here, we can't continue from here */
- if (!cpumask_equal(span, sched_domain_span(sibling->child)))
+ if (!cpumask_equal(sg_span, sched_domain_span(sibling->child)))
continue;

cpumask_set_cpu(i, mask);
@@ -5869,7 +5869,7 @@ static void init_overlap_sched_group(struct sched_domain *sd,
static int
build_overlap_sched_groups(struct sched_domain *sd, int cpu)
{
- struct sched_group *first = NULL, *last = NULL, *groups = NULL, *sg;
+ struct sched_group *first = NULL, *last = NULL, *sg;
const struct cpumask *span = sched_domain_span(sd);
struct cpumask *covered = sched_domains_tmpmask;
struct sd_data *sdd = sd->private;
@@ -5899,15 +5899,6 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)

init_overlap_sched_group(sd, sg);

- /*
- * Make sure the first group of this domain contains the
- * canonical balance cpu. Otherwise the sched_domain iteration
- * breaks. See update_sg_lb_stats().
- */
- if ((!groups && cpumask_test_cpu(cpu, sg_span)) ||
- group_balance_cpu(sg) == cpu)
- groups = sg;
-
if (!first)
first = sg;
if (last)
@@ -5915,7 +5906,7 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
last = sg;
last->next = first;
}
- sd->groups = groups;
+ sd->groups = first;

return 0;

@@ -6631,7 +6622,7 @@ static int build_sched_domains(const struct cpumask *cpu_map,
sd = build_sched_domain(tl, cpu_map, attr, sd, i);
if (tl == sched_domain_topology)
*per_cpu_ptr(d.sd, i) = sd;
- if (tl->flags & SDTL_OVERLAP || sched_feat(FORCE_SD_OVERLAP))
+ if (tl->flags & SDTL_OVERLAP)
sd->flags |= SD_OVERLAP;
if (cpumask_equal(cpu_map, sched_domain_span(sd)))
break;
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 90284d117fe6..79bad00ea840 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -56,7 +56,6 @@ SCHED_FEAT(NONTASK_CAPACITY, true)
*/
SCHED_FEAT(TTWU_QUEUE, true)

-SCHED_FEAT(FORCE_SD_OVERLAP, false)
SCHED_FEAT(RT_RUNTIME_SHARE, true)
SCHED_FEAT(LB_MIN, false)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 3a3172559b22..e918a641b1a0 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -342,7 +342,8 @@ static struct ctl_table kern_table[] = {
.data = &sysctl_sched_time_avg,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
},
{
.procname = "sched_shares_window_ns",
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 591bbffc2384..99b46db656e0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3191,11 +3191,17 @@ static int tracing_open(struct inode *inode, struct file *file)
/* If this file was open for write, then erase contents */
if ((file->f_mode & FMODE_WRITE) && (file->f_flags & O_TRUNC)) {
int cpu = tracing_get_cpu(inode);
+ struct trace_buffer *trace_buf = &tr->trace_buffer;
+
+#ifdef CONFIG_TRACER_MAX_TRACE
+ if (tr->current_trace->print_max)
+ trace_buf = &tr->max_buffer;
+#endif

if (cpu == RING_BUFFER_ALL_CPUS)
- tracing_reset_online_cpus(&tr->trace_buffer);
+ tracing_reset_online_cpus(trace_buf);
else
- tracing_reset(&tr->trace_buffer, cpu);
+ tracing_reset(trace_buf, cpu);
}

if (file->f_mode & FMODE_READ) {
@@ -4408,7 +4414,7 @@ static int tracing_wait_pipe(struct file *filp)
*
* iter->pos will be 0 if we haven't read anything.
*/
- if (!tracing_is_on() && iter->pos)
+ if (!tracer_tracing_is_on(iter->tr) && iter->pos)
break;

mutex_unlock(&iter->mutex);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 146fb7784900..9bf0b4bd3cc7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -68,6 +68,7 @@ enum {
* attach_mutex to avoid changing binding state while
* worker_attach_to_pool() is in progress.
*/
+ POOL_MANAGER_ACTIVE = 1 << 0, /* being managed */
POOL_DISASSOCIATED = 1 << 2, /* cpu can't serve workers */

/* worker flags */
@@ -158,7 +159,6 @@ struct worker_pool {
/* L: hash of busy workers */

/* see manage_workers() for details on the two manager mutexes */
- struct mutex manager_arb; /* manager arbitration */
struct mutex attach_mutex; /* attach/detach exclusion */
struct list_head workers; /* A: attached workers */
struct completion *detach_completion; /* all workers detached */
@@ -288,6 +288,7 @@ static struct workqueue_attrs *wq_update_unbound_numa_attrs_buf;

static DEFINE_MUTEX(wq_pool_mutex); /* protects pools and workqueues list */
static DEFINE_SPINLOCK(wq_mayday_lock); /* protects wq->maydays list */
+static DECLARE_WAIT_QUEUE_HEAD(wq_manager_wait); /* wait for manager to go away */

static LIST_HEAD(workqueues); /* PL: list of all workqueues */
static bool workqueue_freezing; /* PL: have wqs started freezing? */
@@ -793,7 +794,7 @@ static bool need_to_create_worker(struct worker_pool *pool)
/* Do we have too many workers and should some go away? */
static bool too_many_workers(struct worker_pool *pool)
{
- bool managing = mutex_is_locked(&pool->manager_arb);
+ bool managing = pool->flags & POOL_MANAGER_ACTIVE;
int nr_idle = pool->nr_idle + managing; /* manager is considered idle */
int nr_busy = pool->nr_workers - nr_idle;

@@ -1996,22 +1997,15 @@ static bool manage_workers(struct worker *worker)
{
struct worker_pool *pool = worker->pool;

- /*
- * Anyone who successfully grabs manager_arb wins the arbitration
- * and becomes the manager. mutex_trylock() on pool->manager_arb
- * failure while holding pool->lock reliably indicates that someone
- * else is managing the pool and the worker which failed trylock
- * can proceed to executing work items. This means that anyone
- * grabbing manager_arb is responsible for actually performing
- * manager duties. If manager_arb is grabbed and released without
- * actual management, the pool may stall indefinitely.
- */
- if (!mutex_trylock(&pool->manager_arb))
+ if (pool->flags & POOL_MANAGER_ACTIVE)
return false;

+ pool->flags |= POOL_MANAGER_ACTIVE;
+
maybe_create_worker(pool);

- mutex_unlock(&pool->manager_arb);
+ pool->flags &= ~POOL_MANAGER_ACTIVE;
+ wake_up(&wq_manager_wait);
return true;
}

@@ -3490,7 +3484,6 @@ static int init_worker_pool(struct worker_pool *pool)
setup_timer(&pool->mayday_timer, pool_mayday_timeout,
(unsigned long)pool);

- mutex_init(&pool->manager_arb);
mutex_init(&pool->attach_mutex);
INIT_LIST_HEAD(&pool->workers);

@@ -3546,13 +3539,15 @@ static void put_unbound_pool(struct worker_pool *pool)
hash_del(&pool->hash_node);

/*
- * Become the manager and destroy all workers. Grabbing
- * manager_arb prevents @pool's workers from blocking on
- * attach_mutex.
+ * Become the manager and destroy all workers. This prevents
+ * @pool's workers from blocking on attach_mutex. We're the last
+ * manager and @pool gets freed with the flag set.
*/
- mutex_lock(&pool->manager_arb);
-
spin_lock_irq(&pool->lock);
+ wait_event_lock_irq(wq_manager_wait,
+ !(pool->flags & POOL_MANAGER_ACTIVE), pool->lock);
+ pool->flags |= POOL_MANAGER_ACTIVE;
+
while ((worker = first_idle_worker(pool)))
destroy_worker(worker);
WARN_ON(pool->nr_workers || pool->nr_idle);
@@ -3566,8 +3561,6 @@ static void put_unbound_pool(struct worker_pool *pool)
if (pool->detach_completion)
wait_for_completion(pool->detach_completion);

- mutex_unlock(&pool->manager_arb);
-
/* shut down the timers */
del_timer_sync(&pool->idle_timer);
del_timer_sync(&pool->mayday_timer);
diff --git a/kernel/workqueue_internal.h b/kernel/workqueue_internal.h
index 45215870ac6c..3fa9c146fccb 100644
--- a/kernel/workqueue_internal.h
+++ b/kernel/workqueue_internal.h
@@ -9,6 +9,7 @@

#include <linux/workqueue.h>
#include <linux/kthread.h>
+#include <linux/preempt.h>

struct worker_pool;

@@ -59,7 +60,7 @@ struct worker {
*/
static inline struct worker *current_wq_worker(void)
{
- if (current->flags & PF_WQ_WORKER)
+ if (in_task() && (current->flags & PF_WQ_WORKER))
return kthread_data(current);
return NULL;
}
diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c
index 806c5b6b4b3a..162b6d290622 100644
--- a/lib/asn1_decoder.c
+++ b/lib/asn1_decoder.c
@@ -220,7 +220,7 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder,
hdr = 2;

/* Extract a tag from the data */
- if (unlikely(dp >= datalen - 1))
+ if (unlikely(datalen - dp < 2))
goto data_overrun_error;
tag = data[dp++];
if (unlikely((tag & 0x1f) == ASN1_LONG_TAG))
@@ -266,7 +266,7 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder,
int n = len - 0x80;
if (unlikely(n > 2))
goto length_too_long;
- if (unlikely(dp >= datalen - n))
+ if (unlikely(n > datalen - dp))
goto data_overrun_error;
hdr += n;
for (len = 0; n > 0; n--) {
@@ -276,6 +276,9 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder,
if (unlikely(len > datalen - dp))
goto data_overrun_error;
}
+ } else {
+ if (unlikely(len > datalen - dp))
+ goto data_overrun_error;
}

if (flags & FLAG_CONS) {
diff --git a/lib/digsig.c b/lib/digsig.c
index ae05ea393fc8..4b8ef0bd315b 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -86,6 +86,12 @@ static int digsig_verify_rsa(struct key *key,
down_read(&key->sem);
ukp = key->payload.data;

+ if (!ukp) {
+ /* key was revoked before we acquired its semaphore */
+ err = -EKEYREVOKED;
+ goto err1;
+ }
+
if (ukp->datalen < sizeof(*pkh))
goto err1;

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index e1a6dce055a0..47c8bb45e781 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1230,17 +1230,11 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,

if (flags & FOLL_TOUCH) {
pmd_t _pmd;
- /*
- * We should set the dirty bit only for FOLL_WRITE but
- * for now the dirty bit in the pmd is meaningless.
- * And if the dirty bit will become meaningful and
- * we'll only set it with FOLL_WRITE, an atomic
- * set_bit will be required on the pmd to set the
- * young bit, instead of the current set_pmd_at.
- */
- _pmd = pmd_mkyoung(pmd_mkdirty(*pmd));
+ _pmd = pmd_mkyoung(*pmd);
+ if (flags & FOLL_WRITE)
+ _pmd = pmd_mkdirty(_pmd);
if (pmdp_set_access_flags(vma, addr & HPAGE_PMD_MASK,
- pmd, _pmd, 1))
+ pmd, _pmd, flags & FOLL_WRITE))
update_mmu_cache_pmd(vma, addr, pmd);
}
if ((flags & FOLL_MLOCK) && (vma->vm_flags & VM_LOCKED)) {
diff --git a/mm/init-mm.c b/mm/init-mm.c
index a56a851908d2..975e49f00f34 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -6,6 +6,7 @@
#include <linux/cpumask.h>

#include <linux/atomic.h>
+#include <linux/user_namespace.h>
#include <asm/pgtable.h>
#include <asm/mmu.h>

@@ -21,5 +22,6 @@ struct mm_struct init_mm = {
.mmap_sem = __RWSEM_INITIALIZER(init_mm.mmap_sem),
.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
+ .user_ns = &init_user_ns,
INIT_MM_CONTEXT(init_mm)
};
diff --git a/mm/memory.c b/mm/memory.c
index e1bde862d6d3..4ab5b0c55f4a 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3560,7 +3560,7 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
* Access another process' address space as given in mm. If non-NULL, use the
* given task for page fault accounting.
*/
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
unsigned long addr, void *buf, int len, int write)
{
struct vm_area_struct *vma;
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 4174487a1261..1e0ec777523e 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -520,7 +520,7 @@ EXPORT_SYMBOL_GPL(__add_pages);

#ifdef CONFIG_MEMORY_HOTREMOVE
/* find the smallest valid pfn in the range [start_pfn, end_pfn) */
-static int find_smallest_section_pfn(int nid, struct zone *zone,
+static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
unsigned long start_pfn,
unsigned long end_pfn)
{
@@ -545,7 +545,7 @@ static int find_smallest_section_pfn(int nid, struct zone *zone,
}

/* find the biggest valid pfn in the range [start_pfn, end_pfn). */
-static int find_biggest_section_pfn(int nid, struct zone *zone,
+static unsigned long find_biggest_section_pfn(int nid, struct zone *zone,
unsigned long start_pfn,
unsigned long end_pfn)
{
@@ -735,7 +735,7 @@ static int __remove_section(struct zone *zone, struct mem_section *ms)
return ret;

scn_nr = __section_nr(ms);
- start_pfn = section_nr_to_pfn(scn_nr);
+ start_pfn = section_nr_to_pfn((unsigned long)scn_nr);
__remove_zone(zone, start_pfn);

sparse_remove_one_section(zone, ms);
diff --git a/mm/nommu.c b/mm/nommu.c
index 53a59f41e2e5..7f2c901c555e 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -2007,7 +2007,7 @@ int generic_file_remap_pages(struct vm_area_struct *vma, unsigned long addr,
}
EXPORT_SYMBOL(generic_file_remap_pages);

-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
unsigned long addr, void *buf, int len, int write)
{
struct vm_area_struct *vma;
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 44ebd5c2cd4a..dcd897f9f95c 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -364,6 +364,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
dev->name);
vlan_vid_add(dev, htons(ETH_P_8021Q), 0);
}
+ if (event == NETDEV_DOWN &&
+ (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
+ vlan_vid_del(dev, htons(ETH_P_8021Q), 0);

vlan_info = rtnl_dereference(dev->vlan_info);
if (!vlan_info)
@@ -408,9 +411,6 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
break;

case NETDEV_DOWN:
- if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
- vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
-
/* Put all VLANs for this dev in the down state too. */
vlan_group_for_each_dev(grp, i, vlandev) {
flgs = vlandev->flags;
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index a841d3e776c5..c7a19a15d760 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -533,6 +533,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)

BT_DBG("");

+ if (!l2cap_is_socket(sock))
+ return -EBADFD;
+
baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);

diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 67fe5e84e68f..278a194e6af4 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -334,6 +334,9 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)

BT_DBG("");

+ if (!l2cap_is_socket(sock))
+ return -EBADFD;
+
session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL);
if (!session)
return -ENOMEM;
diff --git a/net/core/dev.c b/net/core/dev.c
index ee2177c0b186..37e2e5423af0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1056,9 +1056,8 @@ static int dev_alloc_name_ns(struct net *net,
return ret;
}

-static int dev_get_valid_name(struct net *net,
- struct net_device *dev,
- const char *name)
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+ const char *name)
{
BUG_ON(!net);

@@ -1074,6 +1073,7 @@ static int dev_get_valid_name(struct net *net,

return 0;
}
+EXPORT_SYMBOL(dev_get_valid_name);

/**
* dev_change_name - change name of a device
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 66498c948405..a3ce3f2d7e98 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1187,7 +1187,10 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_LINKINFO] = { .type = NLA_NESTED },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
[IFLA_NET_NS_FD] = { .type = NLA_U32 },
- [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
+ /* IFLA_IFALIAS is a string, but policy is set to NLA_BINARY to
+ * allow 0-length string (needed to remove an alias).
+ */
+ [IFLA_IFALIAS] = { .type = NLA_BINARY, .len = IFALIASZ - 1 },
[IFLA_VFINFO_LIST] = {. type = NLA_NESTED },
[IFLA_VF_PORTS] = { .type = NLA_NESTED },
[IFLA_PORT_SELF] = { .type = NLA_NESTED },
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8c5409067930..235c639d370b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3961,6 +3961,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
if (!xnet)
return;

+ ipvs_reset(skb);
skb_orphan(skb);
skb->mark = 0;
}
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index f8fa2d15115e..82068e0d9891 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -252,6 +252,7 @@ int dccp_disconnect(struct sock *sk, int flags)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct inet_sock *inet = inet_sk(sk);
+ struct dccp_sock *dp = dccp_sk(sk);
int err = 0;
const int old_state = sk->sk_state;

@@ -271,6 +272,10 @@ int dccp_disconnect(struct sock *sk, int flags)
sk->sk_err = ECONNRESET;

dccp_clear_xmit_timers(sk);
+ ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
+ ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+ dp->dccps_hc_rx_ccid = NULL;
+ dp->dccps_hc_tx_ccid = NULL;

__skb_queue_purge(&sk->sk_receive_queue);
__skb_queue_purge(&sk->sk_write_queue);
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 3d4da2c16b6a..1a04ea201f3b 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -313,6 +313,7 @@ static int ip_rcv_finish(struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
+ int err;

if (sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
const struct net_protocol *ipprot;
@@ -320,7 +321,9 @@ static int ip_rcv_finish(struct sk_buff *skb)

ipprot = rcu_dereference(inet_protos[protocol]);
if (ipprot && ipprot->early_demux) {
- ipprot->early_demux(skb);
+ err = ipprot->early_demux(skb);
+ if (unlikely(err))
+ goto drop_error;
/* must reload iph, skb->head might have changed */
iph = ip_hdr(skb);
}
@@ -331,14 +334,10 @@ static int ip_rcv_finish(struct sk_buff *skb)
* how the packet travels inside Linux networking.
*/
if (!skb_dst(skb)) {
- int err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
- iph->tos, skb->dev);
- if (unlikely(err)) {
- if (err == -EXDEV)
- NET_INC_STATS_BH(dev_net(skb->dev),
- LINUX_MIB_IPRPFILTER);
- goto drop;
- }
+ err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
+ iph->tos, skb->dev);
+ if (unlikely(err))
+ goto drop_error;
}

#ifdef CONFIG_IP_ROUTE_CLASSID
@@ -368,6 +367,11 @@ static int ip_rcv_finish(struct sk_buff *skb)
drop:
kfree_skb(skb);
return NET_RX_DROP;
+
+drop_error:
+ if (err == -EXDEV)
+ NET_INC_STATS_BH(dev_net(skb->dev), LINUX_MIB_IPRPFILTER);
+ goto drop;
}

/*
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index ea7525b1f996..ca0b7408614c 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -151,6 +151,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
struct ip_tunnel_parm *parms = &tunnel->parms;
struct dst_entry *dst = skb_dst(skb);
struct net_device *tdev; /* Device to other host */
+ int pkt_len = skb->len;
int err;

if (!dst) {
@@ -194,7 +195,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,

err = dst_output(skb);
if (net_xmit_eval(err) == 0)
- err = skb->len;
+ err = pkt_len;
iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
return NETDEV_TX_OK;

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 75b122645188..d0c1d3781b1d 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1440,40 +1440,53 @@ static struct rtable *rt_dst_alloc(struct net_device *dev,
}

/* called in rcu_read_lock() section */
-static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
- u8 tos, struct net_device *dev, int our)
+int ip_mc_validate_source(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+ u8 tos, struct net_device *dev,
+ struct in_device *in_dev, u32 *itag)
{
- struct rtable *rth;
- struct in_device *in_dev = __in_dev_get_rcu(dev);
- u32 itag = 0;
int err;

/* Primary sanity checks. */
-
if (in_dev == NULL)
return -EINVAL;

if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
skb->protocol != htons(ETH_P_IP))
- goto e_inval;
+ return -EINVAL;

if (likely(!IN_DEV_ROUTE_LOCALNET(in_dev)))
if (ipv4_is_loopback(saddr))
- goto e_inval;
+ return -EINVAL;

if (ipv4_is_zeronet(saddr)) {
if (!ipv4_is_local_multicast(daddr))
- goto e_inval;
+ return -EINVAL;
} else {
err = fib_validate_source(skb, saddr, 0, tos, 0, dev,
- in_dev, &itag);
+ in_dev, itag);
if (err < 0)
- goto e_err;
+ return err;
}
+ return 0;
+}
+
+/* called in rcu_read_lock() section */
+static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+ u8 tos, struct net_device *dev, int our)
+{
+ struct in_device *in_dev = __in_dev_get_rcu(dev);
+ struct rtable *rth;
+ u32 itag = 0;
+ int err;
+
+ err = ip_mc_validate_source(skb, daddr, saddr, tos, dev, in_dev, &itag);
+ if (err)
+ return err;
+
rth = rt_dst_alloc(dev_net(dev)->loopback_dev,
IN_DEV_CONF_GET(in_dev, NOPOLICY), false, false);
if (!rth)
- goto e_nobufs;
+ return -ENOBUFS;

#ifdef CONFIG_IP_ROUTE_CLASSID
rth->dst.tclassid = itag;
@@ -1502,13 +1515,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,

skb_dst_set(skb, &rth->dst);
return 0;
-
-e_nobufs:
- return -ENOBUFS;
-e_inval:
- return -EINVAL;
-e_err:
- return err;
}


diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 4984da1a31b3..964064325681 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1616,23 +1616,23 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
}
EXPORT_SYMBOL(tcp_v4_do_rcv);

-void tcp_v4_early_demux(struct sk_buff *skb)
+int tcp_v4_early_demux(struct sk_buff *skb)
{
const struct iphdr *iph;
const struct tcphdr *th;
struct sock *sk;

if (skb->pkt_type != PACKET_HOST)
- return;
+ return 0;

if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct tcphdr)))
- return;
+ return 0;

iph = ip_hdr(skb);
th = tcp_hdr(skb);

if (th->doff < sizeof(struct tcphdr) / 4)
- return;
+ return 0;

sk = __inet_lookup_established(dev_net(skb->dev), &tcp_hashinfo,
iph->saddr, th->source,
@@ -1651,6 +1651,7 @@ void tcp_v4_early_demux(struct sk_buff *skb)
skb_dst_set_noref(skb, dst);
}
}
+ return 0;
}

/* Packet is added to VJ-style prequeue for processing in process
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 6ad29aa904bf..52d89fc2b297 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1817,6 +1817,7 @@ static int tcp_mtu_probe(struct sock *sk)
nskb->ip_summed = skb->ip_summed;

tcp_insert_write_queue_before(nskb, skb, sk);
+ tcp_highest_sack_replace(sk, skb, nskb);

len = 0;
tcp_for_write_queue_from_safe(skb, next, sk) {
@@ -2327,7 +2328,7 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)

BUG_ON(tcp_skb_pcount(skb) != 1 || tcp_skb_pcount(next_skb) != 1);

- tcp_highest_sack_combine(sk, next_skb, skb);
+ tcp_highest_sack_replace(sk, next_skb, skb);

tcp_unlink_write_queue(next_skb, sk);

@@ -3058,6 +3059,10 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
goto done;
}

+ /* data was not sent, this is our new send_head */
+ sk->sk_send_head = syn_data;
+ tp->packets_out -= tcp_skb_pcount(syn_data);
+
fallback:
/* Send a regular SYN with Fast Open cookie request option */
if (fo->cookie.len > 0)
@@ -3104,6 +3109,11 @@ int tcp_connect(struct sock *sk)
*/
tp->snd_nxt = tp->write_seq;
tp->pushed_seq = tp->write_seq;
+ buff = tcp_send_head(sk);
+ if (unlikely(buff)) {
+ tp->snd_nxt = TCP_SKB_CB(buff)->seq;
+ tp->pushed_seq = TCP_SKB_CB(buff)->seq;
+ }
TCP_INC_STATS(sock_net(sk), TCP_MIB_ACTIVEOPENS);

/* Timer for repeating the SYN until an answer. */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0a9aaab17e00..5877d782bdc1 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1950,9 +1950,10 @@ static struct sock *__udp4_lib_demux_lookup(struct net *net,
return result;
}

-void udp_v4_early_demux(struct sk_buff *skb)
+int udp_v4_early_demux(struct sk_buff *skb)
{
struct net *net = dev_net(skb->dev);
+ struct in_device *in_dev = NULL;
const struct iphdr *iph;
const struct udphdr *uh;
struct sock *sk;
@@ -1962,33 +1963,33 @@ void udp_v4_early_demux(struct sk_buff *skb)

/* validate the packet */
if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct udphdr)))
- return;
+ return 0;

iph = ip_hdr(skb);
uh = udp_hdr(skb);

- if (skb->pkt_type == PACKET_BROADCAST ||
- skb->pkt_type == PACKET_MULTICAST) {
- struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
+ if (skb->pkt_type == PACKET_MULTICAST) {
+ in_dev = __in_dev_get_rcu(skb->dev);

if (!in_dev)
- return;
+ return 0;

ours = ip_check_mc_rcu(in_dev, iph->daddr, iph->saddr,
iph->protocol);
if (!ours)
- return;
+ return 0;
+
sk = __udp4_lib_mcast_demux_lookup(net, uh->dest, iph->daddr,
uh->source, iph->saddr, dif);
} else if (skb->pkt_type == PACKET_HOST) {
sk = __udp4_lib_demux_lookup(net, uh->dest, iph->daddr,
uh->source, iph->saddr, dif);
} else {
- return;
+ return 0;
}

if (!sk)
- return;
+ return 0;

skb->sk = sk;
skb->destructor = sock_edemux;
@@ -1997,6 +1998,8 @@ void udp_v4_early_demux(struct sk_buff *skb)
if (dst)
dst = dst_check(dst, 0);
if (dst) {
+ u32 itag = 0;
+
/* DST_NOCACHE can not be used without taking a reference */
if (dst->flags & DST_NOCACHE) {
if (likely(atomic_inc_not_zero(&dst->__refcnt)))
@@ -2004,7 +2007,16 @@ void udp_v4_early_demux(struct sk_buff *skb)
} else {
skb_dst_set_noref(skb, dst);
}
+
+ /* for unconnected multicast sockets we need to validate
+ * the source on each packet
+ */
+ if (!inet_sk(sk)->inet_daddr && in_dev)
+ return ip_mc_validate_source(skb, iph->daddr,
+ iph->saddr, iph->tos,
+ skb->dev, in_dev, &itag);
}
+ return 0;
}

int udp_rcv(struct sk_buff *skb)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index f204efd21f50..b277098ed426 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -404,15 +404,18 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct ipv6_tlv_tnl_enc_lim *tel;
__u32 mtu;
case ICMPV6_DEST_UNREACH:
- net_warn_ratelimited("%s: Path to destination invalid or inactive!\n",
- t->parms.name);
- break;
+ net_dbg_ratelimited("%s: Path to destination invalid or inactive!\n",
+ t->parms.name);
+ if (code != ICMPV6_PORT_UNREACH)
+ break;
+ return;
case ICMPV6_TIME_EXCEED:
if (code == ICMPV6_EXC_HOPLIMIT) {
- net_warn_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
+ t->parms.name);
+ break;
}
- break;
+ return;
case ICMPV6_PARAMPROB:
teli = 0;
if (code == ICMPV6_HDR_FIELD)
@@ -421,20 +424,20 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (teli && teli == be32_to_cpu(info) - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
- net_warn_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
+ t->parms.name);
}
} else {
- net_warn_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
+ t->parms.name);
}
- break;
+ return;
case ICMPV6_PKT_TOOBIG:
mtu = be32_to_cpu(info) - offset;
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
- break;
+ return;
}

if (time_before(jiffies, t->err_time + IP6TUNNEL_ERR_TIMEO))
@@ -1172,21 +1175,23 @@ static int ip6gre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
}

static int ip6gre_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type,
- const void *daddr, const void *saddr, unsigned int len)
+ unsigned short type, const void *daddr,
+ const void *saddr, unsigned int len)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb_push(skb, t->hlen);
- __be16 *p = (__be16 *)(ipv6h+1);
+ struct ipv6hdr *ipv6h;
+ __be16 *p;

+ ipv6h = (struct ipv6hdr *)skb_push(skb, t->hlen + sizeof(*ipv6h));
ip6_flow_hdr(ipv6h, 0, t->fl.u.ip6.flowlabel);
ipv6h->hop_limit = t->parms.hop_limit;
ipv6h->nexthdr = NEXTHDR_GRE;
ipv6h->saddr = t->parms.laddr;
ipv6h->daddr = t->parms.raddr;

- p[0] = t->parms.o_flags;
- p[1] = htons(type);
+ p = (__be16 *)(ipv6h + 1);
+ p[0] = t->parms.o_flags;
+ p[1] = htons(type);

/*
* Set the source hardware address.
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 4e083dab7445..de67f5bd9bf9 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -407,6 +407,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
struct net_device_stats *stats = &t->dev->stats;
struct dst_entry *dst = skb_dst(skb);
struct net_device *tdev;
+ int pkt_len = skb->len;
int err = -1;

if (!dst)
@@ -441,7 +442,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);

u64_stats_update_begin(&tstats->syncp);
- tstats->tx_bytes += skb->len;
+ tstats->tx_bytes += pkt_len;
tstats->tx_packets++;
u64_stats_update_end(&tstats->syncp);
} else {
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 35f97d9abc4b..1f3677610ad7 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1771,14 +1771,12 @@ EXPORT_SYMBOL_GPL(l2tp_tunnel_create);

/* This function is used by the netlink TUNNEL_DELETE command.
*/
-int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)
+void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)
{
- l2tp_tunnel_inc_refcount(tunnel);
- if (false == queue_work(l2tp_wq, &tunnel->del_work)) {
- l2tp_tunnel_dec_refcount(tunnel);
- return 1;
+ if (!test_and_set_bit(0, &tunnel->dead)) {
+ l2tp_tunnel_inc_refcount(tunnel);
+ queue_work(l2tp_wq, &tunnel->del_work);
}
- return 0;
}
EXPORT_SYMBOL_GPL(l2tp_tunnel_delete);

diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 36c25b14bc6f..b56ca9346038 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -169,6 +169,9 @@ struct l2tp_tunnel_cfg {

struct l2tp_tunnel {
int magic; /* Should be L2TP_TUNNEL_MAGIC */
+
+ unsigned long dead;
+
struct rcu_head rcu;
rwlock_t hlist_lock; /* protect session_hlist */
bool acpt_newsess; /* Indicates whether this
@@ -266,7 +269,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg,
struct l2tp_tunnel **tunnelp);
void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
-int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
+void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
struct l2tp_session *l2tp_session_create(int priv_size,
struct l2tp_tunnel *tunnel,
u32 session_id, u32 peer_session_id,
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index ed819454a4e7..a719bf9afb04 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -41,7 +41,6 @@ struct l2tp_eth {
struct net_device *dev;
struct sock *tunnel_sock;
struct l2tp_session *session;
- struct list_head list;
atomic_long_t tx_bytes;
atomic_long_t tx_packets;
atomic_long_t tx_dropped;
@@ -55,17 +54,6 @@ struct l2tp_eth_sess {
struct net_device *dev;
};

-/* per-net private data for this module */
-static unsigned int l2tp_eth_net_id;
-struct l2tp_eth_net {
- struct list_head l2tp_eth_dev_list;
- spinlock_t l2tp_eth_lock;
-};
-
-static inline struct l2tp_eth_net *l2tp_eth_pernet(struct net *net)
-{
- return net_generic(net, l2tp_eth_net_id);
-}

static struct lock_class_key l2tp_eth_tx_busylock;
static int l2tp_eth_dev_init(struct net_device *dev)
@@ -81,12 +69,6 @@ static int l2tp_eth_dev_init(struct net_device *dev)

static void l2tp_eth_dev_uninit(struct net_device *dev)
{
- struct l2tp_eth *priv = netdev_priv(dev);
- struct l2tp_eth_net *pn = l2tp_eth_pernet(dev_net(dev));
-
- spin_lock(&pn->l2tp_eth_lock);
- list_del_init(&priv->list);
- spin_unlock(&pn->l2tp_eth_lock);
dev_put(dev);
}

@@ -216,7 +198,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
struct l2tp_eth *priv;
struct l2tp_eth_sess *spriv;
int rc;
- struct l2tp_eth_net *pn;

if (cfg->ifname) {
dev = dev_get_by_name(net, cfg->ifname);
@@ -251,7 +232,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
priv = netdev_priv(dev);
priv->dev = dev;
priv->session = session;
- INIT_LIST_HEAD(&priv->list);

priv->tunnel_sock = tunnel->sock;
session->recv_skb = l2tp_eth_dev_recv;
@@ -272,10 +252,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
strlcpy(session->ifname, dev->name, IFNAMSIZ);

dev_hold(dev);
- pn = l2tp_eth_pernet(dev_net(dev));
- spin_lock(&pn->l2tp_eth_lock);
- list_add(&priv->list, &pn->l2tp_eth_dev_list);
- spin_unlock(&pn->l2tp_eth_lock);

return 0;

@@ -288,22 +264,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
return rc;
}

-static __net_init int l2tp_eth_init_net(struct net *net)
-{
- struct l2tp_eth_net *pn = net_generic(net, l2tp_eth_net_id);
-
- INIT_LIST_HEAD(&pn->l2tp_eth_dev_list);
- spin_lock_init(&pn->l2tp_eth_lock);
-
- return 0;
-}
-
-static struct pernet_operations l2tp_eth_net_ops = {
- .init = l2tp_eth_init_net,
- .id = &l2tp_eth_net_id,
- .size = sizeof(struct l2tp_eth_net),
-};
-

static const struct l2tp_nl_cmd_ops l2tp_eth_nl_cmd_ops = {
.session_create = l2tp_eth_create,
@@ -317,25 +277,18 @@ static int __init l2tp_eth_init(void)

err = l2tp_nl_register_ops(L2TP_PWTYPE_ETH, &l2tp_eth_nl_cmd_ops);
if (err)
- goto out;
-
- err = register_pernet_device(&l2tp_eth_net_ops);
- if (err)
- goto out_unreg;
+ goto err;

pr_info("L2TP ethernet pseudowire support (L2TPv3)\n");

return 0;

-out_unreg:
- l2tp_nl_unregister_ops(L2TP_PWTYPE_ETH);
-out:
+err:
return err;
}

static void __exit l2tp_eth_exit(void)
{
- unregister_pernet_device(&l2tp_eth_net_ops);
l2tp_nl_unregister_ops(L2TP_PWTYPE_ETH);
}

diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index d30f5c03d72f..67c59119d01d 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -122,6 +122,7 @@ static int l2tp_ip_recv(struct sk_buff *skb)
unsigned char *ptr, *optr;
struct l2tp_session *session;
struct l2tp_tunnel *tunnel = NULL;
+ struct iphdr *iph;
int length;

if (!pskb_may_pull(skb, 4))
@@ -177,21 +178,16 @@ static int l2tp_ip_recv(struct sk_buff *skb)
goto discard;

tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
- tunnel = l2tp_tunnel_find(net, tunnel_id);
- if (tunnel != NULL)
- sk = tunnel->sock;
- else {
- struct iphdr *iph = (struct iphdr *) skb_network_header(skb);
-
- read_lock_bh(&l2tp_ip_lock);
- sk = __l2tp_ip_bind_lookup(net, iph->daddr, 0, tunnel_id);
- read_unlock_bh(&l2tp_ip_lock);
- }
+ iph = (struct iphdr *)skb_network_header(skb);

- if (sk == NULL)
+ read_lock_bh(&l2tp_ip_lock);
+ sk = __l2tp_ip_bind_lookup(net, iph->daddr, 0, tunnel_id);
+ if (!sk) {
+ read_unlock_bh(&l2tp_ip_lock);
goto discard;
-
+ }
sock_hold(sk);
+ read_unlock_bh(&l2tp_ip_lock);

if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb))
goto discard_put;
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index c052d2991f84..1615cb38828d 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -133,6 +133,7 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
unsigned char *ptr, *optr;
struct l2tp_session *session;
struct l2tp_tunnel *tunnel = NULL;
+ struct ipv6hdr *iph;
int length;

if (!pskb_may_pull(skb, 4))
@@ -189,22 +190,16 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
goto discard;

tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
- tunnel = l2tp_tunnel_find(&init_net, tunnel_id);
- if (tunnel != NULL)
- sk = tunnel->sock;
- else {
- struct ipv6hdr *iph = ipv6_hdr(skb);
-
- read_lock_bh(&l2tp_ip6_lock);
- sk = __l2tp_ip6_bind_lookup(&init_net, &iph->daddr,
- 0, tunnel_id);
- read_unlock_bh(&l2tp_ip6_lock);
- }
+ iph = ipv6_hdr(skb);

- if (sk == NULL)
+ read_lock_bh(&l2tp_ip6_lock);
+ sk = __l2tp_ip6_bind_lookup(&init_net, &iph->daddr, 0, tunnel_id);
+ if (!sk) {
+ read_unlock_bh(&l2tp_ip6_lock);
goto discard;
-
+ }
sock_hold(sk);
+ read_unlock_bh(&l2tp_ip6_lock);

if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb))
goto discard_put;
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 80d4cfa9fe38..22d74e6b6461 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -603,6 +603,7 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
u32 tunnel_id, peer_tunnel_id;
u32 session_id, peer_session_id;
bool drop_refcnt = false;
+ bool drop_tunnel = false;
int ver = 2;
int fd;

@@ -671,7 +672,9 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
if (tunnel_id == 0)
goto end;

- tunnel = l2tp_tunnel_find(sock_net(sk), tunnel_id);
+ tunnel = l2tp_tunnel_get(sock_net(sk), tunnel_id);
+ if (tunnel)
+ drop_tunnel = true;

/* Special case: create tunnel context if session_id and
* peer_session_id is 0. Otherwise look up tunnel using supplied
@@ -800,6 +803,8 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
end:
if (drop_refcnt)
l2tp_session_dec_refcount(session);
+ if (drop_tunnel)
+ l2tp_tunnel_dec_refcount(tunnel);
release_sock(sk);

return error;
@@ -1007,6 +1012,9 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
session->name, cmd, arg);

sk = ps->sock;
+ if (!sk)
+ return -EBADR;
+
sock_hold(sk);

switch (cmd) {
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 6850c3c4d6d3..59aaa4159a36 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1982,24 +1982,28 @@ static struct pernet_operations ip_set_net_ops = {
static int __init
ip_set_init(void)
{
- int ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
+ int ret = register_pernet_subsys(&ip_set_net_ops);
+
+ if (ret) {
+ pr_err("ip_set: cannot register pernet_subsys.\n");
+ return ret;
+ }
+
+ ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
if (ret != 0) {
pr_err("ip_set: cannot register with nfnetlink.\n");
+ unregister_pernet_subsys(&ip_set_net_ops);
return ret;
}
+
ret = nf_register_sockopt(&so_set);
if (ret != 0) {
pr_err("SO_SET registry failed: %d\n", ret);
nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
+ unregister_pernet_subsys(&ip_set_net_ops);
return ret;
}
- ret = register_pernet_subsys(&ip_set_net_ops);
- if (ret) {
- pr_err("ip_set: cannot register pernet_subsys.\n");
- nf_unregister_sockopt(&so_set);
- nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
- return ret;
- }
+
pr_info("ip_set: protocol %u\n", IPSET_PROTOCOL);
return 0;
}
@@ -2007,9 +2011,10 @@ ip_set_init(void)
static void __exit
ip_set_fini(void)
{
- unregister_pernet_subsys(&ip_set_net_ops);
nf_unregister_sockopt(&so_set);
nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
+
+ unregister_pernet_subsys(&ip_set_net_ops);
pr_debug("these are the famous last words\n");
}

diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index 54330fb5efaf..17d9c9df3129 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/list.h>
#include <linux/errno.h>
+#include <linux/capability.h>
#include <net/netlink.h>
#include <net/sock.h>

@@ -295,6 +296,9 @@ nfnl_cthelper_new(struct sock *nfnl, struct sk_buff *skb,
struct nf_conntrack_tuple tuple;
int ret = 0, i;

+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!tb[NFCTH_NAME] || !tb[NFCTH_TUPLE])
return -EINVAL;

@@ -509,6 +513,9 @@ nfnl_cthelper_get(struct sock *nfnl, struct sk_buff *skb,
struct nf_conntrack_tuple tuple;
bool tuple_set = false;

+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (nlh->nlmsg_flags & NLM_F_DUMP) {
struct netlink_dump_control c = {
.dump = nfnl_cthelper_dump_table,
@@ -581,6 +588,9 @@ nfnl_cthelper_del(struct sock *nfnl, struct sk_buff *skb,
bool tuple_set = false, found = false;
int i, j = 0, ret;

+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (tb[NFCTH_NAME])
helper_name = nla_data(tb[NFCTH_NAME]);

diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 3ca6db13af92..7a4e43a8acfa 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -860,7 +860,7 @@ void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
if (copy_from_user(&compat_tmp, user, sizeof(compat_tmp)) != 0)
return ERR_PTR(-EFAULT);

- strlcpy(info->name, compat_tmp.name, sizeof(info->name));
+ memcpy(info->name, compat_tmp.name, sizeof(info->name) - 1);
info->num_counters = compat_tmp.num_counters;
user += sizeof(compat_tmp);
} else
@@ -873,9 +873,9 @@ void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
if (copy_from_user(info, user, sizeof(*info)) != 0)
return ERR_PTR(-EFAULT);

- info->name[sizeof(info->name) - 1] = '\0';
user += sizeof(*info);
}
+ info->name[sizeof(info->name) - 1] = '\0';

size = sizeof(struct xt_counters);
size *= info->num_counters;
diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c
index c529161cdbf8..99f3146b7337 100644
--- a/net/netfilter/xt_osf.c
+++ b/net/netfilter/xt_osf.c
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <linux/kernel.h>

+#include <linux/capability.h>
#include <linux/if.h>
#include <linux/inetdevice.h>
#include <linux/ip.h>
@@ -69,6 +70,9 @@ static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
struct xt_osf_finger *kf = NULL, *sf;
int err = 0;

+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!osf_attrs[OSF_ATTR_FINGER])
return -EINVAL;

@@ -112,6 +116,9 @@ static int xt_osf_remove_callback(struct sock *ctnl, struct sk_buff *skb,
struct xt_osf_finger *sf;
int err = -ENOENT;

+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!osf_attrs[OSF_ATTR_FINGER])
return -EINVAL;

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 3bf0c16023ec..2eafcffb5f8e 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -216,6 +216,9 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb,
struct sock *sk = skb->sk;
int ret = -ENOMEM;

+ if (!net_eq(dev_net(dev), sock_net(sk)))
+ return 0;
+
dev_hold(dev);

if (is_vmalloc_addr(skb->head))
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f5bf29c033bd..c7d91a0b51da 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2432,6 +2432,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
int offset = 0;
int vnet_hdr_len;
struct packet_sock *po = pkt_sk(sk);
+ bool has_vnet_hdr = false;
unsigned short gso_type = 0;
int hlen, tlen;
int extra_len = 0;
@@ -2466,6 +2467,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
reserve = dev->hard_header_len;
if (po->has_vnet_hdr) {
vnet_hdr_len = sizeof(vnet_hdr);
+ has_vnet_hdr = true;

err = -EINVAL;
if (len < vnet_hdr_len)
@@ -2557,7 +2559,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;

- if (po->has_vnet_hdr) {
+ if (has_vnet_hdr) {
if (vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
if (!skb_partial_csum_set(skb, vnet_hdr.csum_start,
vnet_hdr.csum_offset)) {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index c0bdd3bce189..c15c37370f5a 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -621,6 +621,7 @@ void qdisc_reset(struct Qdisc *qdisc)
qdisc->gso_skb = NULL;
qdisc->q.qlen = 0;
}
+ qdisc->qstats.backlog = 0;
}
EXPORT_SYMBOL(qdisc_reset);

diff --git a/net/sctp/input.c b/net/sctp/input.c
index f2e2cbd2d750..adedd61e2bc4 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -416,7 +416,7 @@ void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,
{
struct dst_entry *dst;

- if (!t)
+ if (sock_owned_by_user(sk) || !t)
return;
dst = sctp_transport_dst_check(t);
if (dst)
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 198ceb721794..4bfa6070ae68 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1627,8 +1627,8 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
case SCTP_CMD_PROCESS_CTSN:
/* Dummy up a SACK for processing. */
sackh.cum_tsn_ack = cmd->obj.be32;
- sackh.a_rwnd = asoc->peer.rwnd +
- asoc->outqueue.outstanding_bytes;
+ sackh.a_rwnd = htonl(asoc->peer.rwnd +
+ asoc->outqueue.outstanding_bytes);
sackh.num_gap_ack_blocks = 0;
sackh.num_dup_tsns = 0;
chunk->subh.sack_hdr = &sackh;
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 27dd3dcb7739..83b90b62b736 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -256,6 +256,8 @@ static int unix_diag_get_exact(struct sk_buff *in_skb,
err = -ENOENT;
if (sk == NULL)
goto out_nosk;
+ if (!net_eq(sock_net(sk), net))
+ goto out;

err = sock_diag_check_cookie(sk, req->udiag_cookie);
if (err)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6fd21cab5ada..eb71b29eb647 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -464,6 +464,14 @@ nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
};

+/* policy for packet pattern attributes */
+static const struct nla_policy
+nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
+ [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
+ [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
+ [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
+};
+
static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
struct netlink_callback *cb,
struct cfg80211_registered_device **rdev,
@@ -8573,7 +8581,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
u8 *mask_pat;

nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
- nla_len(pat), NULL);
+ nla_len(pat), nl80211_packet_pattern_policy);
err = -EINVAL;
if (!pat_tb[NL80211_PKTPAT_MASK] ||
!pat_tb[NL80211_PKTPAT_PATTERN])
@@ -8801,7 +8809,7 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
u8 *mask_pat;

nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
- nla_len(pat), NULL);
+ nla_len(pat), nl80211_packet_pattern_policy);
if (!pat_tb[NL80211_PKTPAT_MASK] ||
!pat_tb[NL80211_PKTPAT_PATTERN])
return -EINVAL;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 725cf243860c..1f9558155e1e 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1877,6 +1877,7 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
if (err >= 0) {
xfrm_sk_policy_insert(sk, err, pol);
xfrm_pol_put(pol);
+ __sk_dst_reset(sk);
err = 0;
}

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index c28716452211..316c27f70560 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1570,7 +1570,8 @@ static int xfrm_dump_policy_done(struct netlink_callback *cb)
struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *) &cb->args[1];
struct net *net = sock_net(cb->skb->sk);

- xfrm_policy_walk_done(walk, net);
+ if (cb->args[0])
+ xfrm_policy_walk_done(walk, net);
return 0;
}

diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 8137b27d641d..aa8f46f0918a 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -135,7 +135,7 @@ void big_key_destroy(struct key *key)
path->mnt = NULL;
path->dentry = NULL;
} else {
- kfree(key->payload.data);
+ kzfree(key->payload.data);
key->payload.data = NULL;
}
}
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 9c321a25348f..cad4c1f415e3 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -315,6 +315,13 @@ static struct key *request_user_key(const char *master_desc, u8 **master_key,

down_read(&ukey->sem);
upayload = ukey->payload.data;
+ if (!upayload) {
+ /* key was revoked before we acquired its semaphore */
+ up_read(&ukey->sem);
+ key_put(ukey);
+ ukey = ERR_PTR(-EKEYREVOKED);
+ goto error;
+ }
*master_key = upayload->data;
*master_keylen = upayload->datalen;
error:
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 5f20da01fd8d..31c70323cda9 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -137,7 +137,7 @@ extern key_ref_t keyring_search_aux(key_ref_t keyring_ref,
extern key_ref_t search_my_process_keyrings(struct keyring_search_context *ctx);
extern key_ref_t search_process_keyrings(struct keyring_search_context *ctx);

-extern struct key *find_keyring_by_name(const char *name, bool skip_perm_check);
+extern struct key *find_keyring_by_name(const char *name, bool uid_keyring);

extern int install_user_keyrings(void);
extern int install_thread_keyring_to_cred(struct cred *);
diff --git a/security/keys/key.c b/security/keys/key.c
index 58ebea254519..c55a01471ea2 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -298,6 +298,8 @@ struct key *key_alloc(struct key_type *type, const char *desc,
key->flags |= 1 << KEY_FLAG_IN_QUOTA;
if (flags & KEY_ALLOC_TRUSTED)
key->flags |= 1 << KEY_FLAG_TRUSTED;
+ if (flags & KEY_ALLOC_UID_KEYRING)
+ key->flags |= 1 << KEY_FLAG_UID_KEYRING;

#ifdef KEY_DEBUGGING
key->magic = KEY_DEBUG_MAGIC;
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 4598617c66de..8cacd856d1ca 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -745,7 +745,7 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
if (ret == 0)
goto can_read_key;
if (ret != -EACCES)
- goto error;
+ goto error2;

/* we can't; see if it's searchable from this process's keyrings
* - we automatically take account of the fact that it may be
@@ -1401,11 +1401,9 @@ long keyctl_assume_authority(key_serial_t id)
}

ret = keyctl_change_reqkey_auth(authkey);
- if (ret < 0)
- goto error;
+ if (ret == 0)
+ ret = authkey->serial;
key_put(authkey);
-
- ret = authkey->serial;
error:
return ret;
}
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 796256db1004..0fa27abd3777 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -405,7 +405,7 @@ static void keyring_describe(const struct key *keyring, struct seq_file *m)
}

struct keyring_read_iterator_context {
- size_t qty;
+ size_t buflen;
size_t count;
key_serial_t __user *buffer;
};
@@ -417,9 +417,9 @@ static int keyring_read_iterator(const void *object, void *data)
int ret;

kenter("{%s,%d},,{%zu/%zu}",
- key->type->name, key->serial, ctx->count, ctx->qty);
+ key->type->name, key->serial, ctx->count, ctx->buflen);

- if (ctx->count >= ctx->qty)
+ if (ctx->count >= ctx->buflen)
return 1;

ret = put_user(key->serial, ctx->buffer);
@@ -441,38 +441,33 @@ static long keyring_read(const struct key *keyring,
char __user *buffer, size_t buflen)
{
struct keyring_read_iterator_context ctx;
- unsigned long nr_keys;
- int ret;
+ long ret;

kenter("{%d},,%zu", key_serial(keyring), buflen);

if (buflen & (sizeof(key_serial_t) - 1))
return -EINVAL;

- nr_keys = keyring->keys.nr_leaves_on_tree;
- if (nr_keys == 0)
- return 0;
-
- /* Calculate how much data we could return */
- ctx.qty = nr_keys * sizeof(key_serial_t);
-
- if (!buffer || !buflen)
- return ctx.qty;
-
- if (buflen > ctx.qty)
- ctx.qty = buflen;
-
- /* Copy the IDs of the subscribed keys into the buffer */
- ctx.buffer = (key_serial_t __user *)buffer;
- ctx.count = 0;
- ret = assoc_array_iterate(&keyring->keys, keyring_read_iterator, &ctx);
- if (ret < 0) {
- kleave(" = %d [iterate]", ret);
- return ret;
+ /* Copy as many key IDs as fit into the buffer */
+ if (buffer && buflen) {
+ ctx.buffer = (key_serial_t __user *)buffer;
+ ctx.buflen = buflen;
+ ctx.count = 0;
+ ret = assoc_array_iterate(&keyring->keys,
+ keyring_read_iterator, &ctx);
+ if (ret < 0) {
+ kleave(" = %ld [iterate]", ret);
+ return ret;
+ }
}

- kleave(" = %zu [ok]", ctx.count);
- return ctx.count;
+ /* Return the size of the buffer needed */
+ ret = keyring->keys.nr_leaves_on_tree * sizeof(key_serial_t);
+ if (ret <= buflen)
+ kleave("= %ld [ok]", ret);
+ else
+ kleave("= %ld [buffer too small]", ret);
+ return ret;
}

/*
@@ -935,15 +930,15 @@ key_ref_t find_key_to_update(key_ref_t keyring_ref,
/*
* Find a keyring with the specified name.
*
- * All named keyrings in the current user namespace are searched, provided they
- * grant Search permission directly to the caller (unless this check is
- * skipped). Keyrings whose usage points have reached zero or who have been
- * revoked are skipped.
+ * Only keyrings that have nonzero refcount, are not revoked, and are owned by a
+ * user in the current user namespace are considered. If @uid_keyring is %true,
+ * the keyring additionally must have been allocated as a user or user session
+ * keyring; otherwise, it must grant Search permission directly to the caller.
*
* Returns a pointer to the keyring with the keyring's refcount having being
* incremented on success. -ENOKEY is returned if a key could not be found.
*/
-struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
+struct key *find_keyring_by_name(const char *name, bool uid_keyring)
{
struct key *keyring;
int bucket;
@@ -971,10 +966,15 @@ struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
if (strcmp(keyring->description, name) != 0)
continue;

- if (!skip_perm_check &&
- key_permission(make_key_ref(keyring, 0),
- KEY_NEED_SEARCH) < 0)
- continue;
+ if (uid_keyring) {
+ if (!test_bit(KEY_FLAG_UID_KEYRING,
+ &keyring->flags))
+ continue;
+ } else {
+ if (key_permission(make_key_ref(keyring, 0),
+ KEY_NEED_SEARCH) < 0)
+ continue;
+ }

/* we've got a match but we might end up racing with
* key_cleanup() if the keyring is currently 'dead'
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 18bad7caf602..e56b57f04cf9 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -76,7 +76,9 @@ int install_user_keyrings(void)
if (IS_ERR(uid_keyring)) {
uid_keyring = keyring_alloc(buf, user->uid, INVALID_GID,
cred, user_keyring_perm,
- KEY_ALLOC_IN_QUOTA, NULL);
+ KEY_ALLOC_UID_KEYRING |
+ KEY_ALLOC_IN_QUOTA,
+ NULL);
if (IS_ERR(uid_keyring)) {
ret = PTR_ERR(uid_keyring);
goto error;
@@ -92,7 +94,9 @@ int install_user_keyrings(void)
session_keyring =
keyring_alloc(buf, user->uid, INVALID_GID,
cred, user_keyring_perm,
- KEY_ALLOC_IN_QUOTA, NULL);
+ KEY_ALLOC_UID_KEYRING |
+ KEY_ALLOC_IN_QUOTA,
+ NULL);
if (IS_ERR(session_keyring)) {
ret = PTR_ERR(session_keyring);
goto error_release;
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 9ea60a7bac78..c120a393ff2d 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -268,11 +268,12 @@ static int construct_key(struct key *key, const void *callout_info,
* The keyring selected is returned with an extra reference upon it which the
* caller must release.
*/
-static void construct_get_dest_keyring(struct key **_dest_keyring)
+static int construct_get_dest_keyring(struct key **_dest_keyring)
{
struct request_key_auth *rka;
const struct cred *cred = current_cred();
struct key *dest_keyring = *_dest_keyring, *authkey;
+ int ret;

kenter("%p", dest_keyring);

@@ -281,6 +282,8 @@ static void construct_get_dest_keyring(struct key **_dest_keyring)
/* the caller supplied one */
key_get(dest_keyring);
} else {
+ bool do_perm_check = true;
+
/* use a default keyring; falling through the cases until we
* find one that we actually have */
switch (cred->jit_keyring) {
@@ -295,8 +298,10 @@ static void construct_get_dest_keyring(struct key **_dest_keyring)
dest_keyring =
key_get(rka->dest_keyring);
up_read(&authkey->sem);
- if (dest_keyring)
+ if (dest_keyring) {
+ do_perm_check = false;
break;
+ }
}

case KEY_REQKEY_DEFL_THREAD_KEYRING:
@@ -331,11 +336,29 @@ static void construct_get_dest_keyring(struct key **_dest_keyring)
default:
BUG();
}
+
+ /*
+ * Require Write permission on the keyring. This is essential
+ * because the default keyring may be the session keyring, and
+ * joining a keyring only requires Search permission.
+ *
+ * However, this check is skipped for the "requestor keyring" so
+ * that /sbin/request-key can itself use request_key() to add
+ * keys to the original requestor's destination keyring.
+ */
+ if (dest_keyring && do_perm_check) {
+ ret = key_permission(make_key_ref(dest_keyring, 1),
+ KEY_NEED_WRITE);
+ if (ret) {
+ key_put(dest_keyring);
+ return ret;
+ }
+ }
}

*_dest_keyring = dest_keyring;
kleave(" [dk %d]", key_serial(dest_keyring));
- return;
+ return 0;
}

/*
@@ -460,11 +483,15 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx,
if (ctx->index_key.type == &key_type_keyring)
return ERR_PTR(-EPERM);

- user = key_user_lookup(current_fsuid());
- if (!user)
- return ERR_PTR(-ENOMEM);
+ ret = construct_get_dest_keyring(&dest_keyring);
+ if (ret)
+ goto error;

- construct_get_dest_keyring(&dest_keyring);
+ user = key_user_lookup(current_fsuid());
+ if (!user) {
+ ret = -ENOMEM;
+ goto error_put_dest_keyring;
+ }

ret = construct_alloc_key(ctx, dest_keyring, flags, user, &key);
key_user_put(user);
@@ -479,7 +506,7 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx,
} else if (ret == -EINPROGRESS) {
ret = 0;
} else {
- goto couldnt_alloc_key;
+ goto error_put_dest_keyring;
}

key_put(dest_keyring);
@@ -489,8 +516,9 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx,
construction_failed:
key_negate_and_link(key, key_negative_timeout, NULL, NULL);
key_put(key);
-couldnt_alloc_key:
+error_put_dest_keyring:
key_put(dest_keyring);
+error:
kleave(" = %d", ret);
return ERR_PTR(ret);
}
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 7495a93b4b90..74e3fe9b47be 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -107,6 +107,18 @@ static void request_key_auth_revoke(struct key *key)
}
}

+static void free_request_key_auth(struct request_key_auth *rka)
+{
+ if (!rka)
+ return;
+ key_put(rka->target_key);
+ key_put(rka->dest_keyring);
+ if (rka->cred)
+ put_cred(rka->cred);
+ kfree(rka->callout_info);
+ kfree(rka);
+}
+
/*
* Destroy an instantiation authorisation token key.
*/
@@ -116,15 +128,7 @@ static void request_key_auth_destroy(struct key *key)

kenter("{%d}", key->serial);

- if (rka->cred) {
- put_cred(rka->cred);
- rka->cred = NULL;
- }
-
- key_put(rka->target_key);
- key_put(rka->dest_keyring);
- kfree(rka->callout_info);
- kfree(rka);
+ free_request_key_auth(rka);
}

/*
@@ -138,22 +142,17 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
const struct cred *cred = current->cred;
struct key *authkey = NULL;
char desc[20];
- int ret;
+ int ret = -ENOMEM;

kenter("%d,", target->serial);

/* allocate a auth record */
- rka = kmalloc(sizeof(*rka), GFP_KERNEL);
- if (!rka) {
- kleave(" = -ENOMEM");
- return ERR_PTR(-ENOMEM);
- }
+ rka = kzalloc(sizeof(*rka), GFP_KERNEL);
+ if (!rka)
+ goto error;
rka->callout_info = kmalloc(callout_len, GFP_KERNEL);
- if (!rka->callout_info) {
- kleave(" = -ENOMEM");
- kfree(rka);
- return ERR_PTR(-ENOMEM);
- }
+ if (!rka->callout_info)
+ goto error_free_rka;

/* see if the calling process is already servicing the key request of
* another process */
@@ -163,8 +162,12 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,

/* if the auth key has been revoked, then the key we're
* servicing is already instantiated */
- if (test_bit(KEY_FLAG_REVOKED, &cred->request_key_auth->flags))
- goto auth_key_revoked;
+ if (test_bit(KEY_FLAG_REVOKED,
+ &cred->request_key_auth->flags)) {
+ up_read(&cred->request_key_auth->sem);
+ ret = -EKEYREVOKED;
+ goto error_free_rka;
+ }

irka = cred->request_key_auth->payload.data;
rka->cred = get_cred(irka->cred);
@@ -192,32 +195,22 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
KEY_USR_VIEW, KEY_ALLOC_NOT_IN_QUOTA);
if (IS_ERR(authkey)) {
ret = PTR_ERR(authkey);
- goto error_alloc;
+ goto error_free_rka;
}

/* construct the auth key */
ret = key_instantiate_and_link(authkey, rka, 0, NULL, NULL);
if (ret < 0)
- goto error_inst;
+ goto error_put_authkey;

kleave(" = {%d,%d}", authkey->serial, atomic_read(&authkey->usage));
return authkey;

-auth_key_revoked:
- up_read(&cred->request_key_auth->sem);
- kfree(rka->callout_info);
- kfree(rka);
- kleave("= -EKEYREVOKED");
- return ERR_PTR(-EKEYREVOKED);
-
-error_inst:
- key_revoke(authkey);
+error_put_authkey:
key_put(authkey);
-error_alloc:
- key_put(rka->target_key);
- key_put(rka->dest_keyring);
- kfree(rka->callout_info);
- kfree(rka);
+error_free_rka:
+ free_request_key_auth(rka);
+error:
kleave("= %d", ret);
return ERR_PTR(ret);
}
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index 6b804aa4529a..2ee504a8c13f 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -69,7 +69,7 @@ static int TSS_sha1(const unsigned char *data, unsigned int datalen,
}

ret = crypto_shash_digest(&sdesc->shash, data, datalen, digest);
- kfree(sdesc);
+ kzfree(sdesc);
return ret;
}

@@ -113,7 +113,7 @@ static int TSS_rawhmac(unsigned char *digest, const unsigned char *key,
if (!ret)
ret = crypto_shash_final(&sdesc->shash, digest);
out:
- kfree(sdesc);
+ kzfree(sdesc);
return ret;
}

@@ -164,7 +164,7 @@ static int TSS_authhmac(unsigned char *digest, const unsigned char *key,
paramdigest, TPM_NONCE_SIZE, h1,
TPM_NONCE_SIZE, h2, 1, &c, 0, 0);
out:
- kfree(sdesc);
+ kzfree(sdesc);
return ret;
}

@@ -245,7 +245,7 @@ static int TSS_checkhmac1(unsigned char *buffer,
if (memcmp(testhmac, authdata, SHA1_DIGEST_SIZE))
ret = -EINVAL;
out:
- kfree(sdesc);
+ kzfree(sdesc);
return ret;
}

@@ -346,7 +346,7 @@ static int TSS_checkhmac2(unsigned char *buffer,
if (memcmp(testhmac2, authdata2, SHA1_DIGEST_SIZE))
ret = -EINVAL;
out:
- kfree(sdesc);
+ kzfree(sdesc);
return ret;
}

@@ -563,7 +563,7 @@ static int tpm_seal(struct tpm_buf *tb, uint16_t keytype,
*bloblen = storedsize;
}
out:
- kfree(td);
+ kzfree(td);
return ret;
}

@@ -677,7 +677,7 @@ static int key_seal(struct trusted_key_payload *p,
if (ret < 0)
pr_info("trusted_key: srkseal failed (%d)\n", ret);

- kfree(tb);
+ kzfree(tb);
return ret;
}

@@ -702,7 +702,7 @@ static int key_unseal(struct trusted_key_payload *p,
/* pull migratable flag out of sealed key */
p->migratable = p->key[--p->key_len];

- kfree(tb);
+ kzfree(tb);
return ret;
}

@@ -961,12 +961,12 @@ static int trusted_instantiate(struct key *key,
if (!ret && options->pcrlock)
ret = pcrlock(options->pcrlock);
out:
- kfree(datablob);
- kfree(options);
+ kzfree(datablob);
+ kzfree(options);
if (!ret)
rcu_assign_keypointer(key, payload);
else
- kfree(payload);
+ kzfree(payload);
return ret;
}

@@ -975,8 +975,7 @@ static void trusted_rcu_free(struct rcu_head *rcu)
struct trusted_key_payload *p;

p = container_of(rcu, struct trusted_key_payload, rcu);
- memset(p->key, 0, p->key_len);
- kfree(p);
+ kzfree(p);
}

/*
@@ -1015,7 +1014,7 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep)
ret = datablob_parse(datablob, new_p, new_o);
if (ret != Opt_update) {
ret = -EINVAL;
- kfree(new_p);
+ kzfree(new_p);
goto out;
}
/* copy old key values, and reseal with new pcrs */
@@ -1028,22 +1027,22 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep)
ret = key_seal(new_p, new_o);
if (ret < 0) {
pr_info("trusted_key: key_seal failed (%d)\n", ret);
- kfree(new_p);
+ kzfree(new_p);
goto out;
}
if (new_o->pcrlock) {
ret = pcrlock(new_o->pcrlock);
if (ret < 0) {
pr_info("trusted_key: pcrlock failed (%d)\n", ret);
- kfree(new_p);
+ kzfree(new_p);
goto out;
}
}
rcu_assign_keypointer(key, new_p);
call_rcu(&p->rcu, trusted_rcu_free);
out:
- kfree(datablob);
- kfree(new_o);
+ kzfree(datablob);
+ kzfree(new_o);
return ret;
}

@@ -1062,34 +1061,30 @@ static long trusted_read(const struct key *key, char __user *buffer,
p = rcu_dereference_key(key);
if (!p)
return -EINVAL;
- if (!buffer || buflen <= 0)
- return 2 * p->blob_len;
- ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL);
- if (!ascii_buf)
- return -ENOMEM;

- bufp = ascii_buf;
- for (i = 0; i < p->blob_len; i++)
- bufp = hex_byte_pack(bufp, p->blob[i]);
- if ((copy_to_user(buffer, ascii_buf, 2 * p->blob_len)) != 0) {
- kfree(ascii_buf);
- return -EFAULT;
+ if (buffer && buflen >= 2 * p->blob_len) {
+ ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL);
+ if (!ascii_buf)
+ return -ENOMEM;
+
+ bufp = ascii_buf;
+ for (i = 0; i < p->blob_len; i++)
+ bufp = hex_byte_pack(bufp, p->blob[i]);
+ if (copy_to_user(buffer, ascii_buf, 2 * p->blob_len) != 0) {
+ kzfree(ascii_buf);
+ return -EFAULT;
+ }
+ kzfree(ascii_buf);
}
- kfree(ascii_buf);
return 2 * p->blob_len;
}

/*
- * trusted_destroy - before freeing the key, clear the decrypted data
+ * trusted_destroy - clear and free the key's payload
*/
static void trusted_destroy(struct key *key)
{
- struct trusted_key_payload *p = key->payload.data;
-
- if (!p)
- return;
- memset(p->key, 0, p->key_len);
- kfree(key->payload.data);
+ kzfree(key->payload.data);
}

struct key_type key_type_trusted = {
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 40cdee62097e..a6a3482e4d7e 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -163,12 +163,10 @@ static int smk_copy_rules(struct list_head *nhead, struct list_head *ohead,
*/
static inline unsigned int smk_ptrace_mode(unsigned int mode)
{
- switch (mode) {
- case PTRACE_MODE_READ:
- return MAY_READ;
- case PTRACE_MODE_ATTACH:
+ if (mode & PTRACE_MODE_ATTACH)
return MAY_READWRITE;
- }
+ if (mode & PTRACE_MODE_READ)
+ return MAY_READ;

return 0;
}
@@ -674,7 +672,7 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
}

if (len)
- *len = strlen(isp) + 1;
+ *len = strlen(isp);

return 0;
}
@@ -1060,7 +1058,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
* @inode: the object
* @name: attribute name
* @buffer: where to put the result
- * @alloc: unused
+ * @alloc: duplicate memory
*
* Returns the size of the attribute or an error code
*/
@@ -1073,43 +1071,38 @@ static int smack_inode_getsecurity(const struct inode *inode,
struct super_block *sbp;
struct inode *ip = (struct inode *)inode;
char *isp;
- int ilen;
- int rc = 0;

- if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0)
isp = smk_of_inode(inode);
- ilen = strlen(isp) + 1;
- *buffer = isp;
- return ilen;
- }
-
- /*
- * The rest of the Smack xattrs are only on sockets.
- */
- sbp = ip->i_sb;
- if (sbp->s_magic != SOCKFS_MAGIC)
- return -EOPNOTSUPP;
+ else {
+ /*
+ * The rest of the Smack xattrs are only on sockets.
+ */
+ sbp = ip->i_sb;
+ if (sbp->s_magic != SOCKFS_MAGIC)
+ return -EOPNOTSUPP;

- sock = SOCKET_I(ip);
- if (sock == NULL || sock->sk == NULL)
- return -EOPNOTSUPP;
+ sock = SOCKET_I(ip);
+ if (sock == NULL || sock->sk == NULL)
+ return -EOPNOTSUPP;

- ssp = sock->sk->sk_security;
+ ssp = sock->sk->sk_security;

- if (strcmp(name, XATTR_SMACK_IPIN) == 0)
- isp = ssp->smk_in->smk_known;
- else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
- isp = ssp->smk_out->smk_known;
- else
- return -EOPNOTSUPP;
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+ isp = ssp->smk_in->smk_known;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+ isp = ssp->smk_out->smk_known;
+ else
+ return -EOPNOTSUPP;
+ }

- ilen = strlen(isp) + 1;
- if (rc == 0) {
- *buffer = isp;
- rc = ilen;
+ if (alloc) {
+ *buffer = kstrdup(isp, GFP_KERNEL);
+ if (*buffer == NULL)
+ return -ENOMEM;
}

- return rc;
+ return strlen(isp);
}


diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 13c88fbcf037..0038834b558e 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -292,7 +292,7 @@ int yama_ptrace_access_check(struct task_struct *child,
return rc;

/* require ptrace target be a child of ptracer on attach */
- if (mode == PTRACE_MODE_ATTACH) {
+ if (mode & PTRACE_MODE_ATTACH) {
switch (ptrace_scope) {
case YAMA_SCOPE_DISABLED:
/* No additional restrictions. */
@@ -318,7 +318,7 @@ int yama_ptrace_access_check(struct task_struct *child,
}
}

- if (rc) {
+ if (rc && (mode & PTRACE_MODE_NOAUDIT) == 0) {
printk_ratelimited(KERN_NOTICE
"ptrace of pid %d was attempted by: %s (pid %d)\n",
child->pid, current->comm, current->pid);
diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
index 38514ed6e55c..9b3445922645 100644
--- a/sound/core/hrtimer.c
+++ b/sound/core/hrtimer.c
@@ -144,6 +144,7 @@ static int __init snd_hrtimer_init(void)
timer->hw = hrtimer_hw;
timer->hw.resolution = resolution;
timer->hw.ticks = NANO_SEC / resolution;
+ timer->max_instances = 100; /* lower the limit */

err = snd_timer_global_register(timer);
if (err < 0) {
diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index 3a4569669efa..86353dc0439c 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/sound/core/seq/oss/seq_oss_midi.c
@@ -615,9 +615,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq
if (!dp->timer->running)
len = snd_seq_oss_timer_start(dp->timer);
if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
- if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
- snd_seq_oss_readq_puts(dp->readq, mdev->seq_device,
- ev->data.ext.ptr, ev->data.ext.len);
+ snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev);
} else {
len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev);
if (len > 0)
diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c
index 654d17a5023c..dffc27374bdf 100644
--- a/sound/core/seq/oss/seq_oss_readq.c
+++ b/sound/core/seq/oss/seq_oss_readq.c
@@ -119,6 +119,35 @@ snd_seq_oss_readq_puts(struct seq_oss_readq *q, int dev, unsigned char *data, in
return 0;
}

+/*
+ * put MIDI sysex bytes; the event buffer may be chained, thus it has
+ * to be expanded via snd_seq_dump_var_event().
+ */
+struct readq_sysex_ctx {
+ struct seq_oss_readq *readq;
+ int dev;
+};
+
+static int readq_dump_sysex(void *ptr, void *buf, int count)
+{
+ struct readq_sysex_ctx *ctx = ptr;
+
+ return snd_seq_oss_readq_puts(ctx->readq, ctx->dev, buf, count);
+}
+
+int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
+ struct snd_seq_event *ev)
+{
+ struct readq_sysex_ctx ctx = {
+ .readq = q,
+ .dev = dev
+ };
+
+ if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
+ return 0;
+ return snd_seq_dump_var_event(ev, readq_dump_sysex, &ctx);
+}
+
/*
* copy an event to input queue:
* return zero if enqueued
diff --git a/sound/core/seq/oss/seq_oss_readq.h b/sound/core/seq/oss/seq_oss_readq.h
index f1463f1f449e..8d033ca2d23f 100644
--- a/sound/core/seq/oss/seq_oss_readq.h
+++ b/sound/core/seq/oss/seq_oss_readq.h
@@ -44,6 +44,8 @@ void snd_seq_oss_readq_delete(struct seq_oss_readq *q);
void snd_seq_oss_readq_clear(struct seq_oss_readq *readq);
unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait);
int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len);
+int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
+ struct snd_seq_event *ev);
int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev);
int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode);
int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec);
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index a3988a4bcfd6..0a52e377a617 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -676,7 +676,7 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
if (atomic)
read_lock(&grp->list_lock);
else
- down_read(&grp->list_mutex);
+ down_read_nested(&grp->list_mutex, hop);
list_for_each_entry(subs, &grp->list_head, src_list) {
/* both ports ready? */
if (atomic_read(&subs->ref_count) != 2)
diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
index 81134e067184..3b126af4a026 100644
--- a/sound/core/seq/seq_virmidi.c
+++ b/sound/core/seq/seq_virmidi.c
@@ -77,13 +77,17 @@ static void snd_virmidi_init_event(struct snd_virmidi *vmidi,
* decode input event and put to read buffer of each opened file
*/
static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
- struct snd_seq_event *ev)
+ struct snd_seq_event *ev,
+ bool atomic)
{
struct snd_virmidi *vmidi;
unsigned char msg[4];
int len;

- read_lock(&rdev->filelist_lock);
+ if (atomic)
+ read_lock(&rdev->filelist_lock);
+ else
+ down_read(&rdev->filelist_sem);
list_for_each_entry(vmidi, &rdev->filelist, list) {
if (!vmidi->trigger)
continue;
@@ -97,7 +101,10 @@ static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
snd_rawmidi_receive(vmidi->substream, msg, len);
}
}
- read_unlock(&rdev->filelist_lock);
+ if (atomic)
+ read_unlock(&rdev->filelist_lock);
+ else
+ up_read(&rdev->filelist_sem);

return 0;
}
@@ -115,7 +122,7 @@ int snd_virmidi_receive(struct snd_rawmidi *rmidi, struct snd_seq_event *ev)
struct snd_virmidi_dev *rdev;

rdev = rmidi->private_data;
- return snd_virmidi_dev_receive_event(rdev, ev);
+ return snd_virmidi_dev_receive_event(rdev, ev, true);
}
#endif /* 0 */

@@ -130,7 +137,7 @@ static int snd_virmidi_event_input(struct snd_seq_event *ev, int direct,
rdev = private_data;
if (!(rdev->flags & SNDRV_VIRMIDI_USE))
return 0; /* ignored */
- return snd_virmidi_dev_receive_event(rdev, ev);
+ return snd_virmidi_dev_receive_event(rdev, ev, atomic);
}

/*
@@ -209,7 +216,6 @@ static int snd_virmidi_input_open(struct snd_rawmidi_substream *substream)
struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
struct snd_rawmidi_runtime *runtime = substream->runtime;
struct snd_virmidi *vmidi;
- unsigned long flags;

vmidi = kzalloc(sizeof(*vmidi), GFP_KERNEL);
if (vmidi == NULL)
@@ -223,9 +229,11 @@ static int snd_virmidi_input_open(struct snd_rawmidi_substream *substream)
vmidi->client = rdev->client;
vmidi->port = rdev->port;
runtime->private_data = vmidi;
- write_lock_irqsave(&rdev->filelist_lock, flags);
+ down_write(&rdev->filelist_sem);
+ write_lock_irq(&rdev->filelist_lock);
list_add_tail(&vmidi->list, &rdev->filelist);
- write_unlock_irqrestore(&rdev->filelist_lock, flags);
+ write_unlock_irq(&rdev->filelist_lock);
+ up_write(&rdev->filelist_sem);
vmidi->rdev = rdev;
return 0;
}
@@ -264,9 +272,11 @@ static int snd_virmidi_input_close(struct snd_rawmidi_substream *substream)
struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
struct snd_virmidi *vmidi = substream->runtime->private_data;

+ down_write(&rdev->filelist_sem);
write_lock_irq(&rdev->filelist_lock);
list_del(&vmidi->list);
write_unlock_irq(&rdev->filelist_lock);
+ up_write(&rdev->filelist_sem);
snd_midi_event_free(vmidi->parser);
substream->runtime->private_data = NULL;
kfree(vmidi);
@@ -520,6 +530,7 @@ int snd_virmidi_new(struct snd_card *card, int device, struct snd_rawmidi **rrmi
rdev->rmidi = rmidi;
rdev->device = device;
rdev->client = -1;
+ init_rwsem(&rdev->filelist_sem);
rwlock_init(&rdev->filelist_lock);
INIT_LIST_HEAD(&rdev->filelist);
rdev->seq_mode = SNDRV_VIRMIDI_SEQ_DISPATCH;
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 8bdfec237ada..762da0a59ba0 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -181,7 +181,7 @@ static void snd_timer_request(struct snd_timer_id *tid)
*
* call this with register_mutex down.
*/
-static void snd_timer_check_slave(struct snd_timer_instance *slave)
+static int snd_timer_check_slave(struct snd_timer_instance *slave)
{
struct snd_timer *timer;
struct snd_timer_instance *master;
@@ -191,16 +191,21 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
list_for_each_entry(master, &timer->open_list_head, open_list) {
if (slave->slave_class == master->slave_class &&
slave->slave_id == master->slave_id) {
+ if (master->timer->num_instances >=
+ master->timer->max_instances)
+ return -EBUSY;
list_move_tail(&slave->open_list,
&master->slave_list_head);
+ master->timer->num_instances++;
spin_lock_irq(&slave_active_lock);
slave->master = master;
slave->timer = master->timer;
spin_unlock_irq(&slave_active_lock);
- return;
+ return 0;
}
}
}
+ return 0;
}

/*
@@ -209,7 +214,7 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
*
* call this with register_mutex down.
*/
-static void snd_timer_check_master(struct snd_timer_instance *master)
+static int snd_timer_check_master(struct snd_timer_instance *master)
{
struct snd_timer_instance *slave, *tmp;

@@ -217,7 +222,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) {
if (slave->slave_class == master->slave_class &&
slave->slave_id == master->slave_id) {
+ if (master->timer->num_instances >=
+ master->timer->max_instances)
+ return -EBUSY;
list_move_tail(&slave->open_list, &master->slave_list_head);
+ master->timer->num_instances++;
spin_lock_irq(&slave_active_lock);
spin_lock(&master->timer->lock);
slave->master = master;
@@ -229,8 +238,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
spin_unlock_irq(&slave_active_lock);
}
}
+ return 0;
}

+static int snd_timer_close_locked(struct snd_timer_instance *timeri);
+
/*
* open a timer instance
* when opening a master, the slave id must be here given.
@@ -241,6 +253,7 @@ int snd_timer_open(struct snd_timer_instance **ti,
{
struct snd_timer *timer;
struct snd_timer_instance *timeri = NULL;
+ int err;

if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) {
/* open a slave instance */
@@ -260,10 +273,14 @@ int snd_timer_open(struct snd_timer_instance **ti,
timeri->slave_id = tid->device;
timeri->flags |= SNDRV_TIMER_IFLG_SLAVE;
list_add_tail(&timeri->open_list, &snd_timer_slave_list);
- snd_timer_check_slave(timeri);
+ err = snd_timer_check_slave(timeri);
+ if (err < 0) {
+ snd_timer_close_locked(timeri);
+ timeri = NULL;
+ }
mutex_unlock(&register_mutex);
*ti = timeri;
- return 0;
+ return err;
}

/* open a master instance */
@@ -289,6 +306,10 @@ int snd_timer_open(struct snd_timer_instance **ti,
return -EBUSY;
}
}
+ if (timer->num_instances >= timer->max_instances) {
+ mutex_unlock(&register_mutex);
+ return -EBUSY;
+ }
timeri = snd_timer_instance_new(owner, timer);
if (!timeri) {
mutex_unlock(&register_mutex);
@@ -315,44 +336,36 @@ int snd_timer_open(struct snd_timer_instance **ti,
}

list_add_tail(&timeri->open_list, &timer->open_list_head);
- snd_timer_check_master(timeri);
+ timer->num_instances++;
+ err = snd_timer_check_master(timeri);
+ if (err < 0) {
+ snd_timer_close_locked(timeri);
+ timeri = NULL;
+ }
mutex_unlock(&register_mutex);
*ti = timeri;
- return 0;
+ return err;
}

static int _snd_timer_stop(struct snd_timer_instance *timeri, int event);

/*
* close a timer instance
+ * call this with register_mutex down.
*/
-int snd_timer_close(struct snd_timer_instance *timeri)
+static int snd_timer_close_locked(struct snd_timer_instance *timeri)
{
struct snd_timer *timer = NULL;
struct snd_timer_instance *slave, *tmp;

- if (snd_BUG_ON(!timeri))
- return -ENXIO;
+ list_del(&timeri->open_list);

/* force to stop the timer */
snd_timer_stop(timeri);

- if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
- /* wait, until the active callback is finished */
- spin_lock_irq(&slave_active_lock);
- while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
- spin_unlock_irq(&slave_active_lock);
- udelay(10);
- spin_lock_irq(&slave_active_lock);
- }
- spin_unlock_irq(&slave_active_lock);
- mutex_lock(&register_mutex);
- list_del(&timeri->open_list);
- mutex_unlock(&register_mutex);
- } else {
- timer = timeri->timer;
- if (snd_BUG_ON(!timer))
- goto out;
+ timer = timeri->timer;
+ if (timer) {
+ timer->num_instances--;
/* wait, until the active callback is finished */
spin_lock_irq(&timer->lock);
while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
@@ -361,17 +374,14 @@ int snd_timer_close(struct snd_timer_instance *timeri)
spin_lock_irq(&timer->lock);
}
spin_unlock_irq(&timer->lock);
- mutex_lock(&register_mutex);
- list_del(&timeri->open_list);
- if (list_empty(&timer->open_list_head) &&
- timer->hw.close)
- timer->hw.close(timer);
+
/* remove slave links */
spin_lock_irq(&slave_active_lock);
spin_lock(&timer->lock);
list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
open_list) {
list_move_tail(&slave->open_list, &snd_timer_slave_list);
+ timer->num_instances--;
slave->master = NULL;
slave->timer = NULL;
list_del_init(&slave->ack_list);
@@ -379,21 +389,45 @@ int snd_timer_close(struct snd_timer_instance *timeri)
}
spin_unlock(&timer->lock);
spin_unlock_irq(&slave_active_lock);
- /* release a card refcount for safe disconnection */
- if (timer->card)
- put_device(&timer->card->card_dev);
- mutex_unlock(&register_mutex);
+
+ /* slave doesn't need to release timer resources below */
+ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)
+ timer = NULL;
}
- out:
+
if (timeri->private_free)
timeri->private_free(timeri);
kfree(timeri->owner);
kfree(timeri);
- if (timer)
+
+ if (timer) {
+ if (list_empty(&timer->open_list_head) && timer->hw.close)
+ timer->hw.close(timer);
+ /* release a card refcount for safe disconnection */
+ if (timer->card)
+ put_device(&timer->card->card_dev);
module_put(timer->module);
+ }
+
return 0;
}

+/*
+ * close a timer instance
+ */
+int snd_timer_close(struct snd_timer_instance *timeri)
+{
+ int err;
+
+ if (snd_BUG_ON(!timeri))
+ return -ENXIO;
+
+ mutex_lock(&register_mutex);
+ err = snd_timer_close_locked(timeri);
+ mutex_unlock(&register_mutex);
+ return err;
+}
+
unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)
{
struct snd_timer * timer;
@@ -872,6 +906,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
spin_lock_init(&timer->lock);
tasklet_init(&timer->task_queue, snd_timer_tasklet,
(unsigned long)timer);
+ timer->max_instances = 1000; /* default limit per timer */
if (card != NULL) {
timer->module = card->module;
err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops);
diff --git a/sound/core/timer_compat.c b/sound/core/timer_compat.c
index 2e908225d754..0b4b028e8e98 100644
--- a/sound/core/timer_compat.c
+++ b/sound/core/timer_compat.c
@@ -106,7 +106,8 @@ enum {
#endif /* CONFIG_X86_X32 */
};

-static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
+static long __snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
void __user *argp = compat_ptr(arg);

@@ -127,7 +128,7 @@ static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, uns
case SNDRV_TIMER_IOCTL_PAUSE:
case SNDRV_TIMER_IOCTL_PAUSE_OLD:
case SNDRV_TIMER_IOCTL_NEXT_DEVICE:
- return snd_timer_user_ioctl(file, cmd, (unsigned long)argp);
+ return __snd_timer_user_ioctl(file, cmd, (unsigned long)argp);
case SNDRV_TIMER_IOCTL_INFO32:
return snd_timer_user_info_compat(file, argp);
case SNDRV_TIMER_IOCTL_STATUS32:
@@ -139,3 +140,15 @@ static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, uns
}
return -ENOIOCTLCMD;
}
+
+static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct snd_timer_user *tu = file->private_data;
+ long ret;
+
+ mutex_lock(&tu->ioctl_lock);
+ ret = __snd_timer_user_ioctl_compat(file, cmd, arg);
+ mutex_unlock(&tu->ioctl_lock);
+ return ret;
+}
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 22b7038cff0d..fc1f09a8e5d3 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2791,7 +2791,7 @@ static int get_kctl_0dB_offset(struct snd_kcontrol *kctl, int *step_to_check)
return -1;
if (*step_to_check && *step_to_check != step) {
snd_printk(KERN_ERR "hda_codec: Mismatching dB step for vmaster slave (%d!=%d)\n",
-- *step_to_check, step);
+ *step_to_check, step);
return -1;
}
*step_to_check = step;
diff --git a/sound/soc/codecs/adau17x1.c b/sound/soc/codecs/adau17x1.c
index 2961fae9670a..eb8e4065c4c5 100644
--- a/sound/soc/codecs/adau17x1.c
+++ b/sound/soc/codecs/adau17x1.c
@@ -88,6 +88,27 @@ static int adau17x1_pll_event(struct snd_soc_dapm_widget *w,
return 0;
}

+static int adau17x1_adc_fixup(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ struct adau *adau = snd_soc_codec_get_drvdata(codec);
+
+ /*
+ * If we are capturing, toggle the ADOSR bit in Converter Control 0 to
+ * avoid losing SNR (workaround from ADI). This must be done after
+ * the ADC(s) have been enabled. According to the data sheet, it is
+ * normally illegal to set this bit when the sampling rate is 96 kHz,
+ * but according to ADI it is acceptable for this workaround.
+ */
+ regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
+ ADAU17X1_CONVERTER0_ADOSR, ADAU17X1_CONVERTER0_ADOSR);
+ regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
+ ADAU17X1_CONVERTER0_ADOSR, 0);
+
+ return 0;
+}
+
static const char * const adau17x1_mono_stereo_text[] = {
"Stereo",
"Mono Left Channel (L+R)",
@@ -119,7 +140,8 @@ static const struct snd_soc_dapm_widget adau17x1_dapm_widgets[] = {
SND_SOC_DAPM_MUX("Right DAC Mode Mux", SND_SOC_NOPM, 0, 0,
&adau17x1_dac_mode_mux),

- SND_SOC_DAPM_ADC("Left Decimator", NULL, ADAU17X1_ADC_CONTROL, 0, 0),
+ SND_SOC_DAPM_ADC_E("Left Decimator", NULL, ADAU17X1_ADC_CONTROL, 0, 0,
+ adau17x1_adc_fixup, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_ADC("Right Decimator", NULL, ADAU17X1_ADC_CONTROL, 1, 0),
SND_SOC_DAPM_DAC("Left DAC", NULL, ADAU17X1_DAC_CONTROL0, 0, 0),
SND_SOC_DAPM_DAC("Right DAC", NULL, ADAU17X1_DAC_CONTROL0, 1, 0),
diff --git a/sound/soc/codecs/adau17x1.h b/sound/soc/codecs/adau17x1.h
index 3ffabaf4c7a8..664db5dd8c20 100644
--- a/sound/soc/codecs/adau17x1.h
+++ b/sound/soc/codecs/adau17x1.h
@@ -120,5 +120,7 @@ bool adau17x1_has_dsp(struct adau *adau);

#define ADAU17X1_CONVERTER0_CONVSR_MASK 0x7

+#define ADAU17X1_CONVERTER0_ADOSR BIT(3)
+

#endif
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index b871ba407e4e..4458190149d1 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -469,10 +469,12 @@ static int init_card(struct snd_usb_caiaqdev *cdev)

err = snd_usb_caiaq_send_command(cdev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
if (err)
- return err;
+ goto err_kill_urb;

- if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ))
- return -ENODEV;
+ if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ)) {
+ err = -ENODEV;
+ goto err_kill_urb;
+ }

usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
cdev->vendor_name, CAIAQ_USB_STR_LEN);
@@ -507,6 +509,10 @@ static int init_card(struct snd_usb_caiaqdev *cdev)

setup_card(cdev);
return 0;
+
+ err_kill_urb:
+ usb_kill_urb(&cdev->ep1_in_urb);
+ return err;
}

static int snd_probe(struct usb_interface *intf,
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c
index bf618e1500ac..e7b934f4d837 100644
--- a/sound/usb/usx2y/usb_stream.c
+++ b/sound/usb/usx2y/usb_stream.c
@@ -191,7 +191,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
}

pg = get_order(read_size);
- sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+ sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+ __GFP_NOWARN, pg);
if (!sk->s) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
goto out;
@@ -211,7 +212,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
pg = get_order(write_size);

sk->write_page =
- (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+ (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+ __GFP_NOWARN, pg);
if (!sk->write_page) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
usb_stream_free(sk);[unhandled content-type:application/pgp-signature]
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