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SubjectRe: Linux 3.18.82
diff --git a/Makefile b/Makefile
index 5e66a3704705..786deb6599f1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 18
-SUBLEVEL = 81
+SUBLEVEL = 82
EXTRAVERSION =
NAME = Diseased Newt

diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi
index 53e81589368a..1f55187ed9ce 100644
--- a/arch/arm/boot/dts/imx53-qsb-common.dtsi
+++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi
@@ -215,16 +215,16 @@

pinctrl_fec: fecgrp {
fsl,pins = <
- MX53_PAD_FEC_MDC__FEC_MDC 0x4
- MX53_PAD_FEC_MDIO__FEC_MDIO 0x1fc
- MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x180
- MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x180
- MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x180
- MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x180
- MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x180
- MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x4
- MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x4
- MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x4
+ MX53_PAD_FEC_MDC__FEC_MDC 0x80000000
+ MX53_PAD_FEC_MDIO__FEC_MDIO 0x80000000
+ MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x80000000
+ MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x80000000
+ MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x80000000
+ MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x80000000
+ MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x80000000
+ MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x80000000
+ MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x80000000
+ MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x80000000
>;
};

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 88eace4e28c3..22e64fd346ad 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1070,11 +1070,6 @@ source "arch/powerpc/Kconfig.debug"

source "security/Kconfig"

-config KEYS_COMPAT
- bool
- depends on COMPAT && KEYS
- default y
-
source "crypto/Kconfig"

config PPC_LIB_RHEAP
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f2cf1f90295b..1d814b527924 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -332,9 +332,6 @@ config COMPAT
config SYSVIPC_COMPAT
def_bool y if COMPAT && SYSVIPC

-config KEYS_COMPAT
- def_bool y if COMPAT && KEYS
-
config SMP
def_bool y
prompt "Symmetric multi-processing support"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 96ac69c5eba0..e51b50af6373 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -542,9 +542,6 @@ config SYSVIPC_COMPAT
depends on COMPAT && SYSVIPC
default y

-config KEYS_COMPAT
- def_bool y if COMPAT && KEYS
-
endmenu

source "net/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c9148e268512..a5d100cf8ed6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2471,10 +2471,6 @@ config COMPAT_FOR_U64_ALIGNMENT
config SYSVIPC_COMPAT
def_bool y
depends on SYSVIPC
-
-config KEYS_COMPAT
- def_bool y
- depends on KEYS
endif

endmenu
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 25bd4d701722..063898d429c7 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/net/macvtap.c b/drivers/net/macvtap.c
index 91120f0ed98c..d058c35b4985 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1047,6 +1047,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
case TUNSETSNDBUF:
if (get_user(u, up))
return -EFAULT;
+ if (u <= 0)
+ return -EINVAL;

q->sk.sk_sndbuf = u;
return 0;
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index a4685a22f665..3067f840210e 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1656,6 +1656,9 @@ 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 < 0)
+ goto err_free_dev;

dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
@@ -2054,6 +2057,10 @@ 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/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index ce844e980990..801369f882b3 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1749,7 +1749,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct iscsi_tm *hdr;
int out_of_order_cmdsn = 0, ret;
bool sess_ref = false;
- u8 function;
+ u8 function, tcm_function = TMR_UNKNOWN;

hdr = (struct iscsi_tm *) buf;
hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
@@ -1795,10 +1795,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* LIO-Target $FABRIC_MOD
*/
if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
-
- u8 tcm_function;
- int ret;
-
transport_init_se_cmd(&cmd->se_cmd,
&lio_target_fabric_configfs->tf_ops,
conn->sess->se_sess, 0, DMA_NONE,
@@ -1835,15 +1831,14 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
-
- ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req,
- tcm_function, GFP_KERNEL);
- if (ret < 0)
- return iscsit_add_reject_cmd(cmd,
+ }
+ ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, tcm_function,
+ GFP_KERNEL);
+ if (ret < 0)
+ return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);

- cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
- }
+ cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;

cmd->iscsi_opcode = ISCSI_OP_SCSI_TMFUNC;
cmd->i_state = ISTATE_SEND_TASKMGTRSP;
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 58b4c2828ee9..9176837442e9 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -183,12 +183,13 @@ found:
return tmp;
}

- if (in) {
+ if (in)
dev->in_pipe = usb_rcvbulkpipe(udev,
in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ if (out)
dev->out_pipe = usb_sndbulkpipe(udev,
out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
- }
+
if (iso_in) {
dev->iso_in = &iso_in->desc;
dev->in_iso_pipe = usb_rcvisocpipe(udev,
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 45692e8a9397..cefca661464b 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1748,7 +1748,6 @@ static int try_flush_caps(struct inode *inode, unsigned *flush_tid)
retry:
spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_NOFLUSH) {
- spin_unlock(&ci->i_ceph_lock);
dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode);
goto out;
}
@@ -1766,10 +1765,8 @@ retry:
mutex_lock(&session->s_mutex);
goto retry;
}
- if (cap->session->s_state < CEPH_MDS_SESSION_OPEN) {
- spin_unlock(&ci->i_ceph_lock);
+ if (cap->session->s_state < CEPH_MDS_SESSION_OPEN)
goto out;
- }

flushing = __mark_caps_flushing(inode, session);

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 49ac10f99da0..de98fd0fc5b0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3245,6 +3245,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
unsigned char name_assign_type,
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, name_assign_type, setup) \
alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7219b8f38cef..2cd7003a8a19 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1532,12 +1532,12 @@ 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/target/target_core_base.h b/include/target/target_core_base.h
index d1e7cb952168..ab4bff088898 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -231,6 +231,7 @@ enum tcm_tmreq_table {
TMR_LUN_RESET = 5,
TMR_TARGET_WARM_RESET = 6,
TMR_TARGET_COLD_RESET = 7,
+ TMR_UNKNOWN = 0xff,
};

/* fabric independent task management response values */
diff --git a/net/core/dev.c b/net/core/dev.c
index 21b0bd976699..93e36e9102e9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1059,9 +1059,8 @@ 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);

@@ -1077,6 +1076,7 @@ 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/ipv4/ipip.c b/net/ipv4/ipip.c
index 37096d64730e..1dac2436b4d5 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -128,43 +128,68 @@ static struct rtnl_link_ops ipip_link_ops __read_mostly;

static int ipip_err(struct sk_buff *skb, u32 info)
{
-
-/* All the routers (except for Linux) return only
- 8 bytes of packet payload. It means, that precise relaying of
- ICMP in the real Internet is absolutely infeasible.
- */
+ /* All the routers (except for Linux) return only
+ 8 bytes of packet payload. It means, that precise relaying of
+ ICMP in the real Internet is absolutely infeasible.
+ */
struct net *net = dev_net(skb->dev);
struct ip_tunnel_net *itn = net_generic(net, ipip_net_id);
const struct iphdr *iph = (const struct iphdr *)skb->data;
- struct ip_tunnel *t;
- int err;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
+ struct ip_tunnel *t;
+ int err = 0;
+
+ switch (type) {
+ case ICMP_DEST_UNREACH:
+ switch (code) {
+ case ICMP_SR_FAILED:
+ /* Impossible event. */
+ goto out;
+ default:
+ /* All others are translated to HOST_UNREACH.
+ * rfc2003 contains "deep thoughts" about NET_UNREACH,
+ * I believe they are just ether pollution. --ANK
+ */
+ break;
+ }
+ break;
+
+ case ICMP_TIME_EXCEEDED:
+ if (code != ICMP_EXC_TTL)
+ goto out;
+ break;
+
+ case ICMP_REDIRECT:
+ break;
+
+ default:
+ goto out;
+ }

- err = -ENOENT;
t = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->daddr, iph->saddr, 0);
- if (t == NULL)
+ if (!t) {
+ err = -ENOENT;
goto out;
+ }

if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
- ipv4_update_pmtu(skb, dev_net(skb->dev), info,
- t->parms.link, 0, IPPROTO_IPIP, 0);
- err = 0;
+ ipv4_update_pmtu(skb, net, info, t->parms.link, 0,
+ iph->protocol, 0);
goto out;
}

if (type == ICMP_REDIRECT) {
- ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
- IPPROTO_IPIP, 0);
- err = 0;
+ ipv4_redirect(skb, net, t->parms.link, 0, iph->protocol, 0);
goto out;
}

- if (t->parms.iph.daddr == 0)
+ if (t->parms.iph.daddr == 0) {
+ err = -ENOENT;
goto out;
+ }

- err = 0;
if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
goto out;

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 2adfa23285be..ff47e881e205 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1870,6 +1870,7 @@ 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) {
@@ -2374,7 +2375,7 @@ 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);

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index a837f2065d2a..1a83031bcddd 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -316,6 +316,7 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
}
opt_space->dst1opt = fopt->dst1opt;
opt_space->opt_flen = fopt->opt_flen;
+ opt_space->tot_len = fopt->tot_len;
return opt_space;
}
EXPORT_SYMBOL_GPL(fl6_merge_options);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 77adf255d238..a97e74023e34 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -409,13 +409,16 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
case ICMPV6_DEST_UNREACH:
net_warn_ratelimited("%s: Path to destination invalid or inactive!\n",
t->parms.name);
- break;
+ 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);
+ break;
}
- break;
+ return;
case ICMPV6_PARAMPROB:
teli = 0;
if (code == ICMPV6_HDR_FIELD)
@@ -431,13 +434,13 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
net_warn_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))
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index f71de459139f..6db1f8ad8ac3 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1177,11 +1177,11 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
if (WARN_ON(np->cork.opt))
return -EINVAL;

- np->cork.opt = kzalloc(opt->tot_len, sk->sk_allocation);
+ np->cork.opt = kzalloc(sizeof(*opt), sk->sk_allocation);
if (unlikely(np->cork.opt == NULL))
return -ENOBUFS;

- np->cork.opt->tot_len = opt->tot_len;
+ np->cork.opt->tot_len = sizeof(*opt);
np->cork.opt->opt_flen = opt->opt_flen;
np->cork.opt->opt_nflen = opt->opt_nflen;

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 5a234fbe2fec..447843b24d7d 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1017,6 +1017,9 @@ 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/mac80211/key.c b/net/mac80211/key.c
index 94368404744b..375ff902a142 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -4,6 +4,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright 2017 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -18,6 +19,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <net/mac80211.h>
+#include <crypto/algapi.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
@@ -474,6 +476,39 @@ void ieee80211_key_free_unused(struct ieee80211_key *key)
ieee80211_key_free_common(key);
}

+static bool ieee80211_key_identical(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_key *old,
+ struct ieee80211_key *new)
+{
+ u8 tkip_old[WLAN_KEY_LEN_TKIP], tkip_new[WLAN_KEY_LEN_TKIP];
+ u8 *tk_old, *tk_new;
+
+ if (!old || new->conf.keylen != old->conf.keylen)
+ return false;
+
+ tk_old = old->conf.key;
+ tk_new = new->conf.key;
+
+ /*
+ * In station mode, don't compare the TX MIC key, as it's never used
+ * and offloaded rekeying may not care to send it to the host. This
+ * is the case in iwlwifi, for example.
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ new->conf.cipher == WLAN_CIPHER_SUITE_TKIP &&
+ new->conf.keylen == WLAN_KEY_LEN_TKIP &&
+ !(new->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+ memcpy(tkip_old, tk_old, WLAN_KEY_LEN_TKIP);
+ memcpy(tkip_new, tk_new, WLAN_KEY_LEN_TKIP);
+ memset(tkip_old + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+ memset(tkip_new + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+ tk_old = tkip_old;
+ tk_new = tkip_new;
+ }
+
+ return !crypto_memneq(tk_old, tk_new, new->conf.keylen);
+}
+
int ieee80211_key_link(struct ieee80211_key *key,
struct ieee80211_sub_if_data *sdata,
struct sta_info *sta)
@@ -485,9 +520,6 @@ int ieee80211_key_link(struct ieee80211_key *key,

pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
idx = key->conf.keyidx;
- key->local = sdata->local;
- key->sdata = sdata;
- key->sta = sta;

mutex_lock(&sdata->local->key_mtx);

@@ -498,6 +530,20 @@ int ieee80211_key_link(struct ieee80211_key *key,
else
old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]);

+ /*
+ * Silently accept key re-installation without really installing the
+ * new version of the key to avoid nonce reuse or replay issues.
+ */
+ if (ieee80211_key_identical(sdata, old_key, key)) {
+ ieee80211_key_free_unused(key);
+ ret = 0;
+ goto out;
+ }
+
+ key->local = sdata->local;
+ key->sdata = sdata;
+ key->sta = sta;
+
increment_tailroom_need_count(sdata);

ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
@@ -513,6 +559,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
ret = 0;
}

+ out:
mutex_unlock(&sdata->local->key_mtx);

return ret;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2d7859c03fd2..71c2ef84c5b0 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -420,7 +420,7 @@ 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/socket.c b/net/sctp/socket.c
index 92c6eac72ea6..07324ca1df1d 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -173,6 +173,36 @@ static inline void sctp_set_owner_w(struct sctp_chunk *chunk)
sk_mem_charge(sk, chunk->skb->truesize);
}

+static void sctp_clear_owner_w(struct sctp_chunk *chunk)
+{
+ skb_orphan(chunk->skb);
+}
+
+static void sctp_for_each_tx_datachunk(struct sctp_association *asoc,
+ void (*cb)(struct sctp_chunk *))
+
+{
+ struct sctp_outq *q = &asoc->outqueue;
+ struct sctp_transport *t;
+ struct sctp_chunk *chunk;
+
+ list_for_each_entry(t, &asoc->peer.transport_addr_list, transports)
+ list_for_each_entry(chunk, &t->transmitted, transmitted_list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->retransmit, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->sacked, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->abandoned, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->out_chunk_list, list)
+ cb(chunk);
+}
+
/* Verify that this is a valid address. */
static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr,
int len)
@@ -7367,7 +7397,9 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
* paths won't try to lock it and then oldsk.
*/
lock_sock_nested(newsk, SINGLE_DEPTH_NESTING);
+ sctp_for_each_tx_datachunk(assoc, sctp_clear_owner_w);
sctp_assoc_migrate(assoc, newsk);
+ sctp_for_each_tx_datachunk(assoc, sctp_set_owner_w);

/* If the association on the newsk is already closed before accept()
* is called, set RCV_SHUTDOWN flag.
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 9d4218fc0a61..c4e4e2f664e8 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/security/keys/Kconfig b/security/keys/Kconfig
index a4f3f8c48d6e..d7734b53b3a8 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -20,6 +20,10 @@ config KEYS

If you are unsure as to whether this is required, answer N.

+config KEYS_COMPAT
+ def_bool y
+ depends on COMPAT && KEYS
+
config PERSISTENT_KEYRINGS
bool "Enable register of persistent per-UID keyrings"
depends on KEYS
\
 
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