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SubjectRe: Linux 2.6.24.3
diff --git a/Makefile b/Makefile
index 6f79564..bac9dd0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 24
-EXTRAVERSION = .2
+EXTRAVERSION = .3
NAME = Err Metey! A Heury Beelge-a Ret!

# *DOCUMENTATION*
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 0340a34..759c2ac 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -354,7 +354,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
* mode as well. The same fixup must be done to the class-code property in
* the IDE node /pci@80000000/ide@C,1
*/
-static void __devinit chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
+static void chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
{
u8 progif;
struct pci_dev *viaisa;
@@ -375,4 +375,4 @@ static void __devinit chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)

pci_dev_put(viaisa);
}
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, chrp_pci_fixup_vt8231_ata);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, chrp_pci_fixup_vt8231_ata);
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index ba931be..5169ecc 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2565,6 +2565,8 @@ static void __init probe_uninorth(void)

/* Locate core99 Uni-N */
uninorth_node = of_find_node_by_name(NULL, "uni-n");
+ uninorth_maj = 1;
+
/* Locate G5 u3 */
if (uninorth_node == NULL) {
uninorth_node = of_find_node_by_name(NULL, "u3");
@@ -2575,8 +2577,10 @@ static void __init probe_uninorth(void)
uninorth_node = of_find_node_by_name(NULL, "u4");
uninorth_maj = 4;
}
- if (uninorth_node == NULL)
+ if (uninorth_node == NULL) {
+ uninorth_maj = 0;
return;
+ }

addrp = of_get_property(uninorth_node, "reg", NULL);
if (addrp == NULL)
@@ -3029,3 +3033,8 @@ void pmac_resume_agp_for_card(struct pci_dev *dev)
pmac_agp_resume(pmac_agp_bridge);
}
EXPORT_SYMBOL(pmac_resume_agp_for_card);
+
+int pmac_get_uninorth_variant(void)
+{
+ return uninorth_maj;
+}
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 28c4500..d2ffbad 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -293,10 +293,10 @@ int futex_atomic_cmpxchg_std(int __user *uaddr, int oldval, int newval)

asm volatile(
" sacf 256\n"
- " cs %1,%4,0(%5)\n"
- "0: lr %0,%1\n"
- "1: sacf 0\n"
- EX_TABLE(0b,1b)
+ "0: cs %1,%4,0(%5)\n"
+ "1: lr %0,%1\n"
+ "2: sacf 0\n"
+ EX_TABLE(0b,2b) EX_TABLE(1b,2b)
: "=d" (ret), "+d" (oldval), "=m" (*uaddr)
: "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr)
: "cc", "memory" );
diff --git a/arch/sparc/lib/rwsem.S b/arch/sparc/lib/rwsem.S
index 2065774..f406b1f 100644
--- a/arch/sparc/lib/rwsem.S
+++ b/arch/sparc/lib/rwsem.S
@@ -7,7 +7,7 @@
#include <asm/ptrace.h>
#include <asm/psr.h>

- .section .sched.text
+ .section .sched.text, "ax"
.align 4

.globl ___down_read
diff --git a/arch/sparc64/lib/rwsem.S b/arch/sparc64/lib/rwsem.S
index 75f0e6b..1a4cc56 100644
--- a/arch/sparc64/lib/rwsem.S
+++ b/arch/sparc64/lib/rwsem.S
@@ -6,7 +6,7 @@

#include <asm/rwsem-const.h>

- .section .sched.text
+ .section .sched.text, "ax"

.globl __down_read
__down_read:
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index c40afba..f636c1e 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -207,7 +207,7 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
if (__pa(address) < KERNEL_TEXT_SIZE) {
unsigned long addr2;
pgprot_t prot2;
- addr2 = __START_KERNEL_map + __pa(address);
+ addr2 = __START_KERNEL_map + __pa(address) - phys_base;
/* Make sure the kernel mappings stay executable */
prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot)));
err = __change_page_attr(addr2, pfn, prot2,
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index d409f67..1ebe7a3 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -85,6 +85,7 @@ struct smu_device {
u32 cmd_buf_abs; /* command buffer absolute */
struct list_head cmd_list;
struct smu_cmd *cmd_cur; /* pending command */
+ int broken_nap;
struct list_head cmd_i2c_list;
struct smu_i2c_cmd *cmd_i2c_cur; /* pending i2c command */
struct timer_list i2c_timer;
@@ -135,6 +136,19 @@ static void smu_start_cmd(void)
fend = faddr + smu->cmd_buf->length + 2;
flush_inval_dcache_range(faddr, fend);

+
+ /* We also disable NAP mode for the duration of the command
+ * on U3 based machines.
+ * This is slightly racy as it can be written back to 1 by a sysctl
+ * but that never happens in practice. There seem to be an issue with
+ * U3 based machines such as the iMac G5 where napping for the
+ * whole duration of the command prevents the SMU from fetching it
+ * from memory. This might be related to the strange i2c based
+ * mechanism the SMU uses to access memory.
+ */
+ if (smu->broken_nap)
+ powersave_nap = 0;
+
/* This isn't exactly a DMA mapping here, I suspect
* the SMU is actually communicating with us via i2c to the
* northbridge or the CPU to access RAM.
@@ -211,6 +225,10 @@ static irqreturn_t smu_db_intr(int irq, void *arg)
misc = cmd->misc;
mb();
cmd->status = rc;
+
+ /* Re-enable NAP mode */
+ if (smu->broken_nap)
+ powersave_nap = 1;
bail:
/* Start next command if any */
smu_start_cmd();
@@ -461,7 +479,7 @@ int __init smu_init (void)
if (np == NULL)
return -ENODEV;

- printk(KERN_INFO "SMU driver %s %s\n", VERSION, AUTHOR);
+ printk(KERN_INFO "SMU: Driver %s %s\n", VERSION, AUTHOR);

if (smu_cmdbuf_abs == 0) {
printk(KERN_ERR "SMU: Command buffer not allocated !\n");
@@ -533,6 +551,11 @@ int __init smu_init (void)
goto fail;
}

+ /* U3 has an issue with NAP mode when issuing SMU commands */
+ smu->broken_nap = pmac_get_uninorth_variant() < 4;
+ if (smu->broken_nap)
+ printk(KERN_INFO "SMU: using NAP mode workaround\n");
+
sys_ctrler = SYS_CTRLER_SMU;
return 0;

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 49a1982..75efa8b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4883,14 +4883,16 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
down_write(&bonding_rwsem);

/* Check to see if the bond already exists. */
- list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
- if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
- printk(KERN_ERR DRV_NAME
+ if (name) {
+ list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
+ if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
+ printk(KERN_ERR DRV_NAME
": cannot add bond %s; it already exists\n",
- name);
- res = -EPERM;
- goto out_rtnl;
- }
+ name);
+ res = -EPERM;
+ goto out_rtnl;
+ }
+ }

bond_dev = alloc_netdev(sizeof(struct bonding), name ? name : "",
ether_setup);
diff --git a/drivers/net/dl2k.h b/drivers/net/dl2k.h
index d66c605..266ec87 100644
--- a/drivers/net/dl2k.h
+++ b/drivers/net/dl2k.h
@@ -388,8 +388,8 @@ enum _mii_mssr {
MII_MSSR_CFG_RES = 0x4000,
MII_MSSR_LOCAL_RCV_STATUS = 0x2000,
MII_MSSR_REMOTE_RCVR = 0x1000,
- MII_MSSR_LP_1000BT_HD = 0x0800,
- MII_MSSR_LP_1000BT_FD = 0x0400,
+ MII_MSSR_LP_1000BT_FD = 0x0800,
+ MII_MSSR_LP_1000BT_HD = 0x0400,
MII_MSSR_IDLE_ERR_COUNT = 0x00ff,
};

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index c9868e9..e94434f 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -559,8 +559,16 @@ static int mhz_setup(struct pcmcia_device *link)

/* Read the station address from the CIS. It is stored as the last
(fourth) string in the Version 1 Version/ID tuple. */
- if (link->prod_id[3]) {
- station_addr = link->prod_id[3];
+ tuple->DesiredTuple = CISTPL_VERS_1;
+ if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
+ rc = -1;
+ goto free_cfg_mem;
+ }
+ /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
+ if (next_tuple(link, tuple, parse) != CS_SUCCESS)
+ first_tuple(link, tuple, parse);
+ if (parse->version_1.ns > 3) {
+ station_addr = parse->version_1.str + parse->version_1.ofs[3];
if (cvt_ascii_address(dev, station_addr) == 0) {
rc = 0;
goto free_cfg_mem;
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index b253b8c..8eb78be 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -4838,6 +4838,9 @@ static int __init gdth_isa_probe_one(ulong32 isa_bios)
if (error)
goto out_free_coal_stat;
list_add_tail(&ha->list, &gdth_instances);
+
+ scsi_scan_host(shp);
+
return 0;

out_free_coal_stat:
@@ -4965,6 +4968,9 @@ static int __init gdth_eisa_probe_one(ushort eisa_slot)
if (error)
goto out_free_coal_stat;
list_add_tail(&ha->list, &gdth_instances);
+
+ scsi_scan_host(shp);
+
return 0;

out_free_ccb_phys:
@@ -5102,6 +5108,9 @@ static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
if (error)
goto out_free_coal_stat;
list_add_tail(&ha->list, &gdth_instances);
+
+ scsi_scan_host(shp);
+
return 0;

out_free_coal_stat:
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a69b155..cfd859a 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -907,6 +907,7 @@ static int sd_done(struct scsi_cmnd *SCpnt)
unsigned int xfer_size = SCpnt->request_bufflen;
unsigned int good_bytes = result ? 0 : xfer_size;
u64 start_lba = SCpnt->request->sector;
+ u64 end_lba = SCpnt->request->sector + (xfer_size / 512);
u64 bad_lba;
struct scsi_sense_hdr sshdr;
int sense_valid = 0;
@@ -945,26 +946,23 @@ static int sd_done(struct scsi_cmnd *SCpnt)
goto out;
if (xfer_size <= SCpnt->device->sector_size)
goto out;
- switch (SCpnt->device->sector_size) {
- case 256:
+ if (SCpnt->device->sector_size < 512) {
+ /* only legitimate sector_size here is 256 */
start_lba <<= 1;
- break;
- case 512:
- break;
- case 1024:
- start_lba >>= 1;
- break;
- case 2048:
- start_lba >>= 2;
- break;
- case 4096:
- start_lba >>= 3;
- break;
- default:
- /* Print something here with limiting frequency. */
- goto out;
- break;
+ end_lba <<= 1;
+ } else {
+ /* be careful ... don't want any overflows */
+ u64 factor = SCpnt->device->sector_size / 512;
+ do_div(start_lba, factor);
+ do_div(end_lba, factor);
}
+
+ if (bad_lba < start_lba || bad_lba >= end_lba)
+ /* the bad lba was reported incorrectly, we have
+ * no idea where the error is
+ */
+ goto out;
+
/* This computation should always be done in terms of
* the resolution of the device's medium.
*/
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index ad632f2..0647164 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -428,6 +428,7 @@ static int usblp_open(struct inode *inode, struct file *file)
usblp->rcomplete = 0;

if (handle_bidir(usblp) < 0) {
+ usb_autopm_put_interface(intf);
usblp->used = 0;
file->private_data = NULL;
retval = -EIO;
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index 5e00933..7253ffd 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -269,7 +269,7 @@ static void inotify_dev_queue_event(struct inotify_watch *w, u32 wd, u32 mask,
/* we can safely put the watch as we don't reference it while
* generating the event
*/
- if (mask & IN_IGNORED || mask & IN_ONESHOT)
+ if (mask & IN_IGNORED || w->mask & IN_ONESHOT)
put_inotify_watch(w); /* final put */

/* coalescing: drop this event if it is a dupe of the previous */
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 51cc1bd..855b6d5 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -701,6 +701,17 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
}

/*
+ * If the page cache is marked as unsafe or invalid, then we can't rely on
+ * the PageUptodate() flag. In this case, we will need to turn off
+ * write optimisations that depend on the page contents being correct.
+ */
+static int nfs_write_pageuptodate(struct page *page, struct inode *inode)
+{
+ return PageUptodate(page) &&
+ !(NFS_I(inode)->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA));
+}
+
+/*
* Update and possibly write a cached page of an NFS file.
*
* XXX: Keep an eye on generic_file_read to make sure it doesn't do bad
@@ -721,10 +732,13 @@ int nfs_updatepage(struct file *file, struct page *page,
(long long)(page_offset(page) +offset));

/* If we're not using byte range locks, and we know the page
- * is entirely in cache, it may be more efficient to avoid
- * fragmenting write requests.
+ * is up to date, it may be more efficient to extend the write
+ * to cover the entire page in order to avoid fragmentation
+ * inefficiencies.
*/
- if (PageUptodate(page) && inode->i_flock == NULL && !(file->f_mode & O_SYNC)) {
+ if (nfs_write_pageuptodate(page, inode) &&
+ inode->i_flock == NULL &&
+ !(file->f_mode & O_SYNC)) {
count = max(count + offset, nfs_page_length(page));
offset = 0;
}
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 21a1c2b..edab1ff 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -350,8 +350,8 @@ xfs_file_readdir(

size = buf.used;
de = (struct hack_dirent *)buf.dirent;
- curr_offset = de->offset /* & 0x7fffffff */;
while (size > 0) {
+ curr_offset = de->offset /* & 0x7fffffff */;
if (filldir(dirent, de->name, de->namlen,
curr_offset & 0x7fffffff,
de->ino, de->d_type)) {
@@ -362,7 +362,6 @@ xfs_file_readdir(
sizeof(u64));
size -= reclen;
de = (struct hack_dirent *)((char *)de + reclen);
- curr_offset = de->offset /* & 0x7fffffff */;
}
}

diff --git a/include/asm-powerpc/pmac_feature.h b/include/asm-powerpc/pmac_feature.h
index 26bcb0a..877c35a 100644
--- a/include/asm-powerpc/pmac_feature.h
+++ b/include/asm-powerpc/pmac_feature.h
@@ -392,6 +392,14 @@ extern u32 __iomem *uninorth_base;
#define UN_BIS(r,v) (UN_OUT((r), UN_IN(r) | (v)))
#define UN_BIC(r,v) (UN_OUT((r), UN_IN(r) & ~(v)))

+/* Uninorth variant:
+ *
+ * 0 = not uninorth
+ * 1 = U1.x or U2.x
+ * 3 = U3
+ * 4 = U4
+ */
+extern int pmac_get_uninorth_variant(void);

#endif /* __ASM_POWERPC_PMAC_FEATURE_H */
#endif /* __KERNEL__ */
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index f30fa92..4b32bb1 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -217,6 +217,7 @@ unifdef-y += i2o-dev.h
unifdef-y += icmp.h
unifdef-y += icmpv6.h
unifdef-y += if_addr.h
+unifdef-y += if_addrlabel.h
unifdef-y += if_arp.h
unifdef-y += if_bridge.h
unifdef-y += if_ec.h
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 7a9398e..540799b 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -300,7 +300,7 @@ hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);

/* Precise sleep: */
extern long hrtimer_nanosleep(struct timespec *rqtp,
- struct timespec *rmtp,
+ struct timespec __user *rmtp,
const enum hrtimer_mode mode,
const clockid_t clockid);
extern long hrtimer_nanosleep_restart(struct restart_block *restart_block);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 30d606a..7ca198b 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -17,6 +17,7 @@ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
}

int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
+int hugetlb_overcommit_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int, int);
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index a6ddec1..816cf4e 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -310,6 +310,8 @@ static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
return ktime_sub_ns(kt, usec * 1000);
}

+extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);
+
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an
diff --git a/kernel/audit.c b/kernel/audit.c
index f93c271..801c946 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1200,13 +1200,17 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
static inline int audit_expand(struct audit_buffer *ab, int extra)
{
struct sk_buff *skb = ab->skb;
- int ret = pskb_expand_head(skb, skb_headroom(skb), extra,
- ab->gfp_mask);
+ int oldtail = skb_tailroom(skb);
+ int ret = pskb_expand_head(skb, 0, extra, ab->gfp_mask);
+ int newtail = skb_tailroom(skb);
+
if (ret < 0) {
audit_log_lost("out of memory in audit_expand");
return 0;
}
- return skb_tailroom(skb);
+
+ skb->truesize += newtail - oldtail;
+ return newtail;
}

/*
diff --git a/kernel/compat.c b/kernel/compat.c
index 42a1ed4..f2a2975 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -40,10 +40,36 @@ int put_compat_timespec(const struct timespec *ts, struct compat_timespec __user
__put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
}

+static long compat_nanosleep_restart(struct restart_block *restart)
+{
+ struct compat_timespec __user *rmtp;
+ struct timespec rmt;
+ mm_segment_t oldfs;
+ long ret;
+
+ rmtp = (struct compat_timespec __user *)(restart->arg1);
+ restart->arg1 = (unsigned long)&rmt;
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ ret = hrtimer_nanosleep_restart(restart);
+ set_fs(oldfs);
+
+ if (ret) {
+ restart->fn = compat_nanosleep_restart;
+ restart->arg1 = (unsigned long)rmtp;
+
+ if (rmtp && put_compat_timespec(&rmt, rmtp))
+ return -EFAULT;
+ }
+
+ return ret;
+}
+
asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
struct compat_timespec __user *rmtp)
{
struct timespec tu, rmt;
+ mm_segment_t oldfs;
long ret;

if (get_compat_timespec(&tu, rqtp))
@@ -52,11 +78,21 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
if (!timespec_valid(&tu))
return -EINVAL;

- ret = hrtimer_nanosleep(&tu, rmtp ? &rmt : NULL, HRTIMER_MODE_REL,
- CLOCK_MONOTONIC);
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ ret = hrtimer_nanosleep(&tu,
+ rmtp ? (struct timespec __user *)&rmt : NULL,
+ HRTIMER_MODE_REL, CLOCK_MONOTONIC);
+ set_fs(oldfs);
+
+ if (ret) {
+ struct restart_block *restart
+ = &current_thread_info()->restart_block;
+
+ restart->fn = compat_nanosleep_restart;
+ restart->arg1 = (unsigned long)rmtp;

- if (ret && rmtp) {
- if (put_compat_timespec(&rmt, rmtp))
+ if (rmtp && put_compat_timespec(&rmt, rmtp))
return -EFAULT;
}

diff --git a/kernel/futex.c b/kernel/futex.c
index db9824d..55d78b5 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2094,7 +2094,7 @@ asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,

t = timespec_to_ktime(ts);
if (cmd == FUTEX_WAIT)
- t = ktime_add(ktime_get(), t);
+ t = ktime_add_safe(ktime_get(), t);
tp = &t;
}
/*
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 0a43def..8682c79 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -175,7 +175,7 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,

t = timespec_to_ktime(ts);
if (cmd == FUTEX_WAIT)
- t = ktime_add(ktime_get(), t);
+ t = ktime_add_safe(ktime_get(), t);
tp = &t;
}
if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE)
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index f994bb8..2429893 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -325,6 +325,24 @@ unsigned long ktime_divns(const ktime_t kt, s64 div)
}
#endif /* BITS_PER_LONG >= 64 */

+/*
+ * Add two ktime values and do a safety check for overflow:
+ */
+
+ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs)
+{
+ ktime_t res = ktime_add(lhs, rhs);
+
+ /*
+ * We use KTIME_SEC_MAX here, the maximum timeout which we can
+ * return to user space in a timespec:
+ */
+ if (res.tv64 < 0 || res.tv64 < lhs.tv64 || res.tv64 < rhs.tv64)
+ res = ktime_set(KTIME_SEC_MAX, 0);
+
+ return res;
+}
+
/* High resolution timer related functions */
#ifdef CONFIG_HIGH_RES_TIMERS

@@ -409,6 +427,8 @@ static int hrtimer_reprogram(struct hrtimer *timer,
ktime_t expires = ktime_sub(timer->expires, base->offset);
int res;

+ WARN_ON_ONCE(timer->expires.tv64 < 0);
+
/*
* When the callback is running, we do not reprogram the clock event
* device. The timer callback is either running on a different CPU or
@@ -419,6 +439,15 @@ static int hrtimer_reprogram(struct hrtimer *timer,
if (hrtimer_callback_running(timer))
return 0;

+ /*
+ * CLOCK_REALTIME timer might be requested with an absolute
+ * expiry time which is less than base->offset. Nothing wrong
+ * about that, just avoid to call into the tick code, which
+ * has now objections against negative expiry values.
+ */
+ if (expires.tv64 < 0)
+ return -ETIME;
+
if (expires.tv64 >= expires_next->tv64)
return 0;

@@ -682,13 +711,7 @@ hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval)
*/
orun++;
}
- timer->expires = ktime_add(timer->expires, interval);
- /*
- * Make sure, that the result did not wrap with a very large
- * interval.
- */
- if (timer->expires.tv64 < 0)
- timer->expires = ktime_set(KTIME_SEC_MAX, 0);
+ timer->expires = ktime_add_safe(timer->expires, interval);

return orun;
}
@@ -839,7 +862,7 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
new_base = switch_hrtimer_base(timer, base);

if (mode == HRTIMER_MODE_REL) {
- tim = ktime_add(tim, new_base->get_time());
+ tim = ktime_add_safe(tim, new_base->get_time());
/*
* CONFIG_TIME_LOW_RES is a temporary way for architectures
* to signal that they simply return xtime in
@@ -848,16 +871,8 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
* timeouts. This will go away with the GTOD framework.
*/
#ifdef CONFIG_TIME_LOW_RES
- tim = ktime_add(tim, base->resolution);
+ tim = ktime_add_safe(tim, base->resolution);
#endif
- /*
- * Careful here: User space might have asked for a
- * very long sleep, so the add above might result in a
- * negative number, which enqueues the timer in front
- * of the queue.
- */
- if (tim.tv64 < 0)
- tim.tv64 = KTIME_MAX;
}
timer->expires = tim;

@@ -1291,11 +1306,26 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
return t->task == NULL;
}

+static int update_rmtp(struct hrtimer *timer, struct timespec __user *rmtp)
+{
+ struct timespec rmt;
+ ktime_t rem;
+
+ rem = ktime_sub(timer->expires, timer->base->get_time());
+ if (rem.tv64 <= 0)
+ return 0;
+ rmt = ktime_to_timespec(rem);
+
+ if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
+ return -EFAULT;
+
+ return 1;
+}
+
long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
{
struct hrtimer_sleeper t;
- struct timespec *rmtp;
- ktime_t time;
+ struct timespec __user *rmtp;

restart->fn = do_no_restart_syscall;

@@ -1305,12 +1335,11 @@ long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
if (do_nanosleep(&t, HRTIMER_MODE_ABS))
return 0;

- rmtp = (struct timespec *)restart->arg1;
+ rmtp = (struct timespec __user *)restart->arg1;
if (rmtp) {
- time = ktime_sub(t.timer.expires, t.timer.base->get_time());
- if (time.tv64 <= 0)
- return 0;
- *rmtp = ktime_to_timespec(time);
+ int ret = update_rmtp(&t.timer, rmtp);
+ if (ret <= 0)
+ return ret;
}

restart->fn = hrtimer_nanosleep_restart;
@@ -1319,12 +1348,11 @@ long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
return -ERESTART_RESTARTBLOCK;
}

-long hrtimer_nanosleep(struct timespec *rqtp, struct timespec *rmtp,
+long hrtimer_nanosleep(struct timespec *rqtp, struct timespec __user *rmtp,
const enum hrtimer_mode mode, const clockid_t clockid)
{
struct restart_block *restart;
struct hrtimer_sleeper t;
- ktime_t rem;

hrtimer_init(&t.timer, clockid, mode);
t.timer.expires = timespec_to_ktime(*rqtp);
@@ -1336,10 +1364,9 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec *rmtp,
return -ERESTARTNOHAND;

if (rmtp) {
- rem = ktime_sub(t.timer.expires, t.timer.base->get_time());
- if (rem.tv64 <= 0)
- return 0;
- *rmtp = ktime_to_timespec(rem);
+ int ret = update_rmtp(&t.timer, rmtp);
+ if (ret <= 0)
+ return ret;
}

restart = &current_thread_info()->restart_block;
@@ -1355,8 +1382,7 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec *rmtp,
asmlinkage long
sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp)
{
- struct timespec tu, rmt;
- int ret;
+ struct timespec tu;

if (copy_from_user(&tu, rqtp, sizeof(tu)))
return -EFAULT;
@@ -1364,15 +1390,7 @@ sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp)
if (!timespec_valid(&tu))
return -EINVAL;

- ret = hrtimer_nanosleep(&tu, rmtp ? &rmt : NULL, HRTIMER_MODE_REL,
- CLOCK_MONOTONIC);
-
- if (ret && rmtp) {
- if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
- return -EFAULT;
- }
-
- return ret;
+ return hrtimer_nanosleep(&tu, rmtp, HRTIMER_MODE_REL, CLOCK_MONOTONIC);
}

/*
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 44019ce..465c69c 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -246,6 +246,17 @@ static unsigned int default_startup(unsigned int irq)
}

/*
+ * default shutdown function
+ */
+static void default_shutdown(unsigned int irq)
+{
+ struct irq_desc *desc = irq_desc + irq;
+
+ desc->chip->mask(irq);
+ desc->status |= IRQ_MASKED;
+}
+
+/*
* Fixup enable/disable function pointers
*/
void irq_chip_set_defaults(struct irq_chip *chip)
@@ -256,8 +267,15 @@ void irq_chip_set_defaults(struct irq_chip *chip)
chip->disable = default_disable;
if (!chip->startup)
chip->startup = default_startup;
+ /*
+ * We use chip->disable, when the user provided its own. When
+ * we have default_disable set for chip->disable, then we need
+ * to use default_shutdown, otherwise the irq line is not
+ * disabled on free_irq():
+ */
if (!chip->shutdown)
- chip->shutdown = chip->disable;
+ chip->shutdown = chip->disable != default_disable ?
+ chip->disable : default_shutdown;
if (!chip->name)
chip->name = chip->typename;
if (!chip->end)
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 35b4bbf..9076432 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -766,9 +766,11 @@ common_timer_set(struct k_itimer *timr, int flags,
/* SIGEV_NONE timers are not queued ! See common_timer_get */
if (((timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE)) {
/* Setup correct expiry time for relative timers */
- if (mode == HRTIMER_MODE_REL)
- timer->expires = ktime_add(timer->expires,
- timer->base->get_time());
+ if (mode == HRTIMER_MODE_REL) {
+ timer->expires =
+ ktime_add_safe(timer->expires,
+ timer->base->get_time());
+ }
return 0;
}

@@ -981,20 +983,9 @@ sys_clock_getres(const clockid_t which_clock, struct timespec __user *tp)
static int common_nsleep(const clockid_t which_clock, int flags,
struct timespec *tsave, struct timespec __user *rmtp)
{
- struct timespec rmt;
- int ret;
-
- ret = hrtimer_nanosleep(tsave, rmtp ? &rmt : NULL,
- flags & TIMER_ABSTIME ?
- HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
- which_clock);
-
- if (ret && rmtp) {
- if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
- return -EFAULT;
- }
-
- return ret;
+ return hrtimer_nanosleep(tsave, rmtp, flags & TIMER_ABSTIME ?
+ HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
+ which_clock);
}

asmlinkage long
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c68f68d..e3e0ee3 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -910,7 +910,7 @@ static struct ctl_table vm_table[] = {
.data = &nr_overcommit_huge_pages,
.maxlen = sizeof(nr_overcommit_huge_pages),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &hugetlb_overcommit_handler,
},
#endif
{
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index db861d8..9c746cb 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -605,6 +605,16 @@ int hugetlb_treat_movable_handler(struct ctl_table *table, int write,
return 0;
}

+int hugetlb_overcommit_handler(struct ctl_table *table, int write,
+ struct file *file, void __user *buffer,
+ size_t *length, loff_t *ppos)
+{
+ spin_lock(&hugetlb_lock);
+ proc_doulongvec_minmax(table, write, file, buffer, length, ppos);
+ spin_unlock(&hugetlb_lock);
+ return 0;
+}
+
#endif /* CONFIG_SYSCTL */

int hugetlb_report_meminfo(char *buf)
diff --git a/mm/memory.c b/mm/memory.c
index 4b0144b..da8b74b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -980,6 +980,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
int i;
unsigned int vm_flags;

+ if (len <= 0)
+ return 0;
/*
* Require read or write permissions.
* If 'force' is set, we only require the "MAY" flags.
diff --git a/mm/slub.c b/mm/slub.c
index 474945e..c432f68 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2592,6 +2592,7 @@ EXPORT_SYMBOL(ksize);
void kfree(const void *x)
{
struct page *page;
+ void *object = (void *)x;

if (unlikely(ZERO_OR_NULL_PTR(x)))
return;
@@ -2601,7 +2602,7 @@ void kfree(const void *x)
put_page(page);
return;
}
- slab_free(page->slab, page, (void *)x, __builtin_return_address(0));
+ slab_free(page->slab, page, object, __builtin_return_address(0));
}
EXPORT_SYMBOL(kfree);

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 17f7fb7..2726adc 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -12,6 +12,8 @@
#undef BT_DBG
#define BT_DBG(D...)
#endif
+static struct workqueue_struct *btaddconn;
+static struct workqueue_struct *btdelconn;

static inline char *typetostr(int type)
{
@@ -279,6 +281,7 @@ static void add_conn(struct work_struct *work)
struct hci_conn *conn = container_of(work, struct hci_conn, work);
int i;

+ flush_workqueue(btdelconn);
if (device_add(&conn->dev) < 0) {
BT_ERR("Failed to register connection device");
return;
@@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn *conn)

INIT_WORK(&conn->work, add_conn);

+ queue_work(btaddconn, &conn->work);
schedule_work(&conn->work);
}

@@ -349,6 +353,7 @@ void hci_conn_del_sysfs(struct hci_conn *conn)

INIT_WORK(&conn->work, del_conn);

+ queue_work(btdelconn, &conn->work);
schedule_work(&conn->work);
}

@@ -398,31 +403,52 @@ int __init bt_sysfs_init(void)
{
int err;

+ btaddconn = create_singlethread_workqueue("btaddconn");
+ if (!btaddconn) {
+ err = -ENOMEM;
+ goto out;
+ }
+ btdelconn = create_singlethread_workqueue("btdelconn");
+ if (!btdelconn) {
+ err = -ENOMEM;
+ goto out_del;
+ }
+
bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
- if (IS_ERR(bt_platform))
- return PTR_ERR(bt_platform);
+ if (IS_ERR(bt_platform)) {
+ err = PTR_ERR(bt_platform);
+ goto out_platform;
+ }

err = bus_register(&bt_bus);
- if (err < 0) {
- platform_device_unregister(bt_platform);
- return err;
- }
+ if (err < 0)
+ goto out_bus;

bt_class = class_create(THIS_MODULE, "bluetooth");
if (IS_ERR(bt_class)) {
- bus_unregister(&bt_bus);
- platform_device_unregister(bt_platform);
- return PTR_ERR(bt_class);
+ err = PTR_ERR(bt_class);
+ goto out_class;
}

return 0;
+
+out_class:
+ bus_unregister(&bt_bus);
+out_bus:
+ platform_device_unregister(bt_platform);
+out_platform:
+ destroy_workqueue(btdelconn);
+out_del:
+ destroy_workqueue(btaddconn);
+out:
+ return err;
}

void bt_sysfs_cleanup(void)
{
+ destroy_workqueue(btaddconn);
+ destroy_workqueue(btdelconn);
class_destroy(bt_class);
-
bus_unregister(&bt_bus);
-
platform_device_unregister(bt_platform);
}
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 0dfee27..2f78e1e 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -434,19 +434,43 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)

if (fa && fa->fa_tos == tos &&
fa->fa_info->fib_priority == fi->fib_priority) {
- struct fib_alias *fa_orig;
+ struct fib_alias *fa_first, *fa_match;

err = -EEXIST;
if (cfg->fc_nlflags & NLM_F_EXCL)
goto out;

+ /* We have 2 goals:
+ * 1. Find exact match for type, scope, fib_info to avoid
+ * duplicate routes
+ * 2. Find next 'fa' (or head), NLM_F_APPEND inserts before it
+ */
+ fa_match = NULL;
+ fa_first = fa;
+ fa = list_entry(fa->fa_list.prev, struct fib_alias, fa_list);
+ list_for_each_entry_continue(fa, &f->fn_alias, fa_list) {
+ if (fa->fa_tos != tos)
+ break;
+ if (fa->fa_info->fib_priority != fi->fib_priority)
+ break;
+ if (fa->fa_type == cfg->fc_type &&
+ fa->fa_scope == cfg->fc_scope &&
+ fa->fa_info == fi) {
+ fa_match = fa;
+ break;
+ }
+ }
+
if (cfg->fc_nlflags & NLM_F_REPLACE) {
struct fib_info *fi_drop;
u8 state;

- if (fi->fib_treeref > 1)
+ fa = fa_first;
+ if (fa_match) {
+ if (fa == fa_match)
+ err = 0;
goto out;
-
+ }
write_lock_bh(&fib_hash_lock);
fi_drop = fa->fa_info;
fa->fa_info = fi;
@@ -469,20 +493,11 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
* uses the same scope, type, and nexthop
* information.
*/
- fa_orig = fa;
- fa = list_entry(fa->fa_list.prev, struct fib_alias, fa_list);
- list_for_each_entry_continue(fa, &f->fn_alias, fa_list) {
- if (fa->fa_tos != tos)
- break;
- if (fa->fa_info->fib_priority != fi->fib_priority)
- break;
- if (fa->fa_type == cfg->fc_type &&
- fa->fa_scope == cfg->fc_scope &&
- fa->fa_info == fi)
- goto out;
- }
+ if (fa_match)
+ goto out;
+
if (!(cfg->fc_nlflags & NLM_F_APPEND))
- fa = fa_orig;
+ fa = fa_first;
}

err = -ENOENT;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 1010b46..fd46509 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1203,20 +1203,45 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
* and we need to allocate a new one of those as well.
*/

- if (fa && fa->fa_info->fib_priority == fi->fib_priority) {
- struct fib_alias *fa_orig;
+ if (fa && fa->fa_tos == tos &&
+ fa->fa_info->fib_priority == fi->fib_priority) {
+ struct fib_alias *fa_first, *fa_match;

err = -EEXIST;
if (cfg->fc_nlflags & NLM_F_EXCL)
goto out;

+ /* We have 2 goals:
+ * 1. Find exact match for type, scope, fib_info to avoid
+ * duplicate routes
+ * 2. Find next 'fa' (or head), NLM_F_APPEND inserts before it
+ */
+ fa_match = NULL;
+ fa_first = fa;
+ fa = list_entry(fa->fa_list.prev, struct fib_alias, fa_list);
+ list_for_each_entry_continue(fa, fa_head, fa_list) {
+ if (fa->fa_tos != tos)
+ break;
+ if (fa->fa_info->fib_priority != fi->fib_priority)
+ break;
+ if (fa->fa_type == cfg->fc_type &&
+ fa->fa_scope == cfg->fc_scope &&
+ fa->fa_info == fi) {
+ fa_match = fa;
+ break;
+ }
+ }
+
if (cfg->fc_nlflags & NLM_F_REPLACE) {
struct fib_info *fi_drop;
u8 state;

- if (fi->fib_treeref > 1)
+ fa = fa_first;
+ if (fa_match) {
+ if (fa == fa_match)
+ err = 0;
goto out;
-
+ }
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
if (new_fa == NULL)
@@ -1228,7 +1253,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
new_fa->fa_type = cfg->fc_type;
new_fa->fa_scope = cfg->fc_scope;
state = fa->fa_state;
- new_fa->fa_state &= ~FA_S_ACCESSED;
+ new_fa->fa_state = state & ~FA_S_ACCESSED;

list_replace_rcu(&fa->fa_list, &new_fa->fa_list);
alias_free_mem_rcu(fa);
@@ -1245,20 +1270,11 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
* uses the same scope, type, and nexthop
* information.
*/
- fa_orig = fa;
- list_for_each_entry(fa, fa_orig->fa_list.prev, fa_list) {
- if (fa->fa_tos != tos)
- break;
- if (fa->fa_info->fib_priority != fi->fib_priority)
- break;
- if (fa->fa_type == cfg->fc_type &&
- fa->fa_scope == cfg->fc_scope &&
- fa->fa_info == fi) {
- goto out;
- }
- }
+ if (fa_match)
+ goto out;
+
if (!(cfg->fc_nlflags & NLM_F_APPEND))
- fa = fa_orig;
+ fa = fa_first;
}
err = -ENOENT;
if (!(cfg->fc_nlflags & NLM_F_CREATE))
@@ -1614,9 +1630,8 @@ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg)
pr_debug("Deleting %08x/%d tos=%d t=%p\n", key, plen, tos, t);

fa_to_delete = NULL;
- fa_head = fa->fa_list.prev;
-
- list_for_each_entry(fa, fa_head, fa_list) {
+ fa = list_entry(fa->fa_list.prev, struct fib_alias, fa_list);
+ list_for_each_entry_continue(fa, fa_head, fa_list) {
struct fib_info *fi = fa->fa_info;

if (fa->fa_tos != tos)
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index e468e7a..6d2979c 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -259,8 +259,10 @@ static int inet_diag_get_exact(struct sk_buff *in_skb,
const struct inet_diag_handler *handler;

handler = inet_diag_lock_handler(nlh->nlmsg_type);
- if (!handler)
- return -ENOENT;
+ if (IS_ERR(handler)) {
+ err = PTR_ERR(handler);
+ goto unlock;
+ }

hashinfo = handler->idiag_hashinfo;
err = -EINVAL;
@@ -708,8 +710,8 @@ static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
struct inet_hashinfo *hashinfo;

handler = inet_diag_lock_handler(cb->nlh->nlmsg_type);
- if (!handler)
- goto no_handler;
+ if (IS_ERR(handler))
+ goto unlock;

hashinfo = handler->idiag_hashinfo;

@@ -838,7 +840,6 @@ done:
cb->args[2] = num;
unlock:
inet_diag_unlock_handler(handler);
-no_handler:
return skb->len;
}

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index bc9e575..61c60cf 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -462,6 +462,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *frag;
int first_len = skb_pagelen(skb);
+ int truesizes = 0;

if (first_len - hlen > mtu ||
((first_len - hlen) & 7) ||
@@ -485,7 +486,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
sock_hold(skb->sk);
frag->sk = skb->sk;
frag->destructor = sock_wfree;
- skb->truesize -= frag->truesize;
+ truesizes += frag->truesize;
}
}

@@ -496,6 +497,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
frag = skb_shinfo(skb)->frag_list;
skb_shinfo(skb)->frag_list = NULL;
skb->data_len = first_len - skb_headlen(skb);
+ skb->truesize -= truesizes;
skb->len = first_len;
iph->tot_len = htons(first_len);
iph->frag_off = htons(IP_MF);
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 2c44a94..80cab8c 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -74,6 +74,7 @@ out:

static int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb)
{
+ int nexthdr;
int err = -ENOMEM;
struct ip_comp_hdr *ipch;

@@ -84,13 +85,15 @@ static int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb)

/* Remove ipcomp header and decompress original payload */
ipch = (void *)skb->data;
+ nexthdr = ipch->nexthdr;
+
skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
err = ipcomp_decompress(x, skb);
if (err)
goto out;

- err = ipch->nexthdr;
+ err = nexthdr;

out:
return err;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index bec6fe8..16e04b7 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -248,7 +248,7 @@ static int strategy_allowed_congestion_control(ctl_table *table, int __user *nam

tcp_get_available_congestion_control(tbl.data, tbl.maxlen);
ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen);
- if (ret == 0 && newval && newlen)
+ if (ret == 1 && newval && newlen)
ret = tcp_set_allowed_congestion_control(tbl.data);
kfree(tbl.data);

diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 3268451..152f83d 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -50,7 +50,7 @@ static struct xfrm_type ipip_type = {

static int xfrm_tunnel_rcv(struct sk_buff *skb)
{
- return xfrm4_rcv_spi(skb, IPPROTO_IP, ip_hdr(skb)->saddr);
+ return xfrm4_rcv_spi(skb, IPPROTO_IPIP, ip_hdr(skb)->saddr);
}

static int xfrm_tunnel_err(struct sk_buff *skb, u32 info)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 3bef30e..2f59baa 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -609,6 +609,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))

if (skb_shinfo(skb)->frag_list) {
int first_len = skb_pagelen(skb);
+ int truesizes = 0;

if (first_len - hlen > mtu ||
((first_len - hlen) & 7) ||
@@ -631,7 +632,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
sock_hold(skb->sk);
frag->sk = skb->sk;
frag->destructor = sock_wfree;
- skb->truesize -= frag->truesize;
+ truesizes += frag->truesize;
}
}

@@ -662,6 +663,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))

first_len = skb_pagelen(skb);
skb->data_len = first_len - skb_headlen(skb);
+ skb->truesize -= truesizes;
skb->len = first_len;
ipv6_hdr(skb)->payload_len = htons(first_len -
sizeof(struct ipv6hdr));
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 0cd4056..1c5b09f 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -64,6 +64,7 @@ static LIST_HEAD(ipcomp6_tfms_list);

static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
{
+ int nexthdr;
int err = -ENOMEM;
struct ip_comp_hdr *ipch;
int plen, dlen;
@@ -79,6 +80,8 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)

/* Remove ipcomp header and decompress original payload */
ipch = (void *)skb->data;
+ nexthdr = ipch->nexthdr;
+
skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));

@@ -108,7 +111,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
skb->truesize += dlen - plen;
__skb_put(skb, dlen - plen);
skb_copy_to_linear_data(skb, scratch, dlen);
- err = ipch->nexthdr;
+ err = nexthdr;

out_put_cpu:
put_cpu();
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 7a3f64c..17ef459 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -135,7 +135,7 @@ enum tcp_bit_set {
* CLOSE_WAIT: ACK seen (after FIN)
* LAST_ACK: FIN seen (after FIN)
* TIME_WAIT: last ACK seen
- * CLOSE: closed connection
+ * CLOSE: closed connection (RST)
*
* LISTEN state is not used.
*
@@ -834,8 +834,21 @@ static int tcp_packet(struct nf_conn *conntrack,
case TCP_CONNTRACK_SYN_SENT:
if (old_state < TCP_CONNTRACK_TIME_WAIT)
break;
- if ((conntrack->proto.tcp.seen[!dir].flags &
- IP_CT_TCP_FLAG_CLOSE_INIT)
+ /* RFC 1122: "When a connection is closed actively,
+ * it MUST linger in TIME-WAIT state for a time 2xMSL
+ * (Maximum Segment Lifetime). However, it MAY accept
+ * a new SYN from the remote TCP to reopen the connection
+ * directly from TIME-WAIT state, if..."
+ * We ignore the conditions because we are in the
+ * TIME-WAIT state anyway.
+ *
+ * Handle aborted connections: we and the server
+ * think there is an existing connection but the client
+ * aborts it and starts a new one.
+ */
+ if (((conntrack->proto.tcp.seen[dir].flags
+ | conntrack->proto.tcp.seen[!dir].flags)
+ & IP_CT_TCP_FLAG_CLOSE_INIT)
|| (conntrack->proto.tcp.last_dir == dir
&& conntrack->proto.tcp.last_index == TCP_RST_SET)) {
/* Attempt to reopen a closed/aborted connection.
@@ -848,18 +861,25 @@ static int tcp_packet(struct nf_conn *conntrack,
}
/* Fall through */
case TCP_CONNTRACK_IGNORE:
- /* Ignored packets:
+ /* Ignored packets:
+ *
+ * Our connection entry may be out of sync, so ignore
+ * packets which may signal the real connection between
+ * the client and the server.
*
* a) SYN in ORIGINAL
* b) SYN/ACK in REPLY
* c) ACK in reply direction after initial SYN in original.
+ *
+ * If the ignored packet is invalid, the receiver will send
+ * a RST we'll catch below.
*/
if (index == TCP_SYNACK_SET
&& conntrack->proto.tcp.last_index == TCP_SYN_SET
&& conntrack->proto.tcp.last_dir != dir
&& ntohl(th->ack_seq) ==
conntrack->proto.tcp.last_end) {
- /* This SYN/ACK acknowledges a SYN that we earlier
+ /* b) This SYN/ACK acknowledges a SYN that we earlier
* ignored as invalid. This means that the client and
* the server are both in sync, while the firewall is
* not. We kill this session and block the SYN/ACK so
@@ -884,7 +904,7 @@ static int tcp_packet(struct nf_conn *conntrack,
write_unlock_bh(&tcp_lock);
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
- "nf_ct_tcp: invalid packed ignored ");
+ "nf_ct_tcp: invalid packet ignored ");
return NF_ACCEPT;
case TCP_CONNTRACK_MAX:
/* Invalid packet */
@@ -938,8 +958,7 @@ static int tcp_packet(struct nf_conn *conntrack,

conntrack->proto.tcp.state = new_state;
if (old_state != new_state
- && (new_state == TCP_CONNTRACK_FIN_WAIT
- || new_state == TCP_CONNTRACK_CLOSE))
+ && new_state == TCP_CONNTRACK_FIN_WAIT)
conntrack->proto.tcp.seen[dir].flags |= IP_CT_TCP_FLAG_CLOSE_INIT;
timeout = conntrack->proto.tcp.retrans >= nf_ct_tcp_max_retrans
&& *tcp_timeouts[new_state] > nf_ct_tcp_timeout_max_retrans
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index ceda889..4d5ce77 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -719,11 +719,13 @@ static int em_meta_match(struct sk_buff *skb, struct tcf_ematch *m,

static inline void meta_delete(struct meta_match *meta)
{
- struct meta_type_ops *ops = meta_type_ops(&meta->lvalue);
+ if (meta) {
+ struct meta_type_ops *ops = meta_type_ops(&meta->lvalue);

- if (ops && ops->destroy) {
- ops->destroy(&meta->lvalue);
- ops->destroy(&meta->rvalue);
+ if (ops && ops->destroy) {
+ ops->destroy(&meta->lvalue);
+ ops->destroy(&meta->rvalue);
+ }
}

kfree(meta);
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index f3a104e..c856031 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -305,10 +305,9 @@ int tcf_em_tree_validate(struct tcf_proto *tp, struct rtattr *rta,
struct tcf_ematch_tree_hdr *tree_hdr;
struct tcf_ematch *em;

- if (!rta) {
- memset(tree, 0, sizeof(*tree));
+ memset(tree, 0, sizeof(*tree));
+ if (!rta)
return 0;
- }

if (rtattr_parse_nested(tb, TCA_EMATCH_TREE_MAX, rta) < 0)
goto errout;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 4bf715d..3a16aba 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2629,7 +2629,6 @@ int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)

netlbl_sid_to_secattr_failure:
POLICY_RDUNLOCK;
- netlbl_secattr_destroy(secattr);
return rc;
}
#endif /* CONFIG_NETLABEL */

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