11 files changed, 45 insertions, 21 deletions

diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index c42c0c400bf..0663f99e977 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -13,22 +13,24 @@ menuconfig NET_9P
 
           If unsure, say N.
 
+if NET_9P
+
 config NET_9P_VIRTIO
-        depends on NET_9P && EXPERIMENTAL && VIRTIO
+        depends on EXPERIMENTAL && VIRTIO
         tristate "9P Virtio Transport (Experimental)"
         help
           This builds support for a transports between
           guest partitions and a host partition.
 
 config NET_9P_RDMA
-        depends on NET_9P && INFINIBAND && EXPERIMENTAL
+        depends on INET && INFINIBAND && EXPERIMENTAL
         tristate "9P RDMA Transport (Experimental)"
         help
-          This builds support for a RDMA transport.
+          This builds support for an RDMA transport.
 
 config NET_9P_DEBUG
         bool "Debug information"
-        depends on NET_9P
         help
           Say Y if you want the 9P subsystem to log debug information.
 
+endif
diff --git a/net/compat.c b/net/compat.c
index 67fb6a3834a..6ce1a1cadcc 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -226,14 +226,14 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
                 return 0; /* XXX: return error? check spec. */
         }
 
-        if (level == SOL_SOCKET && type == SO_TIMESTAMP) {
+        if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
                 struct timeval *tv = (struct timeval *)data;
                 ctv.tv_sec = tv->tv_sec;
                 ctv.tv_usec = tv->tv_usec;
                 data = &ctv;
                 len = sizeof(ctv);
         }
-        if (level == SOL_SOCKET && type == SO_TIMESTAMPNS) {
+        if (level == SOL_SOCKET && type == SCM_TIMESTAMPNS) {
                 struct timespec *ts = (struct timespec *)data;
                 cts.tv_sec = ts->tv_sec;
                 cts.tv_nsec = ts->tv_nsec;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 31f29d2989f..4dfb6b4d455 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -878,7 +878,9 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
                 if (ifm->ifi_change)
                         flags = (flags & ifm->ifi_change) |
                                 (dev->flags & ~ifm->ifi_change);
-                dev_change_flags(dev, flags);
+                err = dev_change_flags(dev, flags);
+                if (err < 0)
+                        goto errout;
         }
 
         if (tb[IFLA_TXQLEN])
diff --git a/net/core/scm.c b/net/core/scm.c
index ab242cc1acc..b12303dd39d 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -75,7 +75,6 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
                 if (!fpl)
                         return -ENOMEM;
                 *fplp = fpl;
-                INIT_LIST_HEAD(&fpl->list);
                 fpl->count = 0;
         }
         fpp = &fpl->fp[fpl->count];
@@ -301,7 +300,6 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl)
 
         new_fpl = kmalloc(sizeof(*fpl), GFP_KERNEL);
         if (new_fpl) {
-                INIT_LIST_HEAD(&new_fpl->list);
                 for (i=fpl->count-1; i>=0; i--)
                         get_file(fpl->fp[i]);
                 memcpy(new_fpl, fpl, sizeof(*fpl));
diff --git a/net/core/sock.c b/net/core/sock.c
index 5e2a3132a8c..341e3945695 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -136,7 +136,6 @@
 static struct lock_class_key af_family_keys[AF_MAX];
 static struct lock_class_key af_family_slock_keys[AF_MAX];
 
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
 /*
  * Make lock validator output more readable. (we pre-construct these
  * strings build-time, so that runtime initialization of socket
@@ -187,7 +186,6 @@ static const char *af_family_clock_key_strings[AF_MAX+1] = {
   "clock-AF_RXRPC" , "clock-AF_ISDN"     , "clock-AF_PHONET"   ,
   "clock-AF_MAX"
 };
-#endif
 
 /*
  * sk_callback_lock locking rules are per-address-family,
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 861978a4f1a..cfb38ac9d69 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -209,9 +209,17 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
 
                 hash = protocol & (MAX_INET_PROTOS - 1);
                 ipprot = rcu_dereference(inet_protos[hash]);
-                if (ipprot != NULL && (net == &init_net || ipprot->netns_ok)) {
+                if (ipprot != NULL) {
                         int ret;
 
+                        if (!net_eq(net, &init_net) && !ipprot->netns_ok) {
+                                if (net_ratelimit())
+                                        printk("%s: proto %d isn't netns-ready\n",
+                                                __func__, protocol);
+                                kfree_skb(skb);
+                                goto out;
+                        }
+
                         if (!ipprot->no_policy) {
                                 if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
                                         kfree_skb(skb);
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index af99776146f..937549b8a92 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -69,9 +69,12 @@ static u32 htcp_cwnd_undo(struct sock *sk)
         const struct tcp_sock *tp = tcp_sk(sk);
         struct htcp *ca = inet_csk_ca(sk);
 
-        ca->last_cong = ca->undo_last_cong;
-        ca->maxRTT = ca->undo_maxRTT;
-        ca->old_maxB = ca->undo_old_maxB;
+        if (ca->undo_last_cong) {
+                ca->last_cong = ca->undo_last_cong;
+                ca->maxRTT = ca->undo_maxRTT;
+                ca->old_maxB = ca->undo_old_maxB;
+                ca->undo_last_cong = 0;
+        }
 
         return max(tp->snd_cwnd, (tp->snd_ssthresh << 7) / ca->beta);
 }
@@ -268,7 +271,10 @@ static void htcp_state(struct sock *sk, u8 new_state)
         case TCP_CA_Open:
                 {
                         struct htcp *ca = inet_csk_ca(sk);
-                        ca->last_cong = jiffies;
+                        if (ca->undo_last_cong) {
+                                ca->last_cong = jiffies;
+                                ca->undo_last_cong = 0;
+                        }
                 }
                 break;
         case TCP_CA_CWR:
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 410046a8cc9..e44deb8d4df 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -661,6 +661,11 @@ int datagram_send_ctl(struct net *net,
                         switch (rthdr->type) {
 #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
                         case IPV6_SRCRT_TYPE_2:
+                                if (rthdr->hdrlen != 2 ||
+                                    rthdr->segments_left != 1) {
+                                        err = -EINVAL;
+                                        goto exit_f;
+                                }
                                 break;
 #endif
                         default:
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 4e5eac301f9..2aa294be0c7 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -366,11 +366,16 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                 }
 
                 /* routing header option needs extra check */
+                retv = -EINVAL;
                 if (optname == IPV6_RTHDR && opt && opt->srcrt) {
                         struct ipv6_rt_hdr *rthdr = opt->srcrt;
                         switch (rthdr->type) {
 #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
                         case IPV6_SRCRT_TYPE_2:
+                                if (rthdr->hdrlen != 2 ||
+                                    rthdr->segments_left != 1)
+                                        goto sticky_done;
+
                                 break;
 #endif
                         default:
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 87665d7bb4f..14d165f0df7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2570,14 +2570,14 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
 
         switch (notif_type) {
         case IEEE80211_NOTIFY_RE_ASSOC:
-                rcu_read_lock();
-                list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+                rtnl_lock();
+                list_for_each_entry(sdata, &local->interfaces, list) {
                         if (sdata->vif.type != NL80211_IFTYPE_STATION)
                                 continue;
 
                         ieee80211_sta_req_auth(sdata, &sdata->u.sta);
                 }
-                rcu_read_unlock();
+                rtnl_unlock();
                 break;
         }
 }
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index defeb7a0d50..7ab30f668b5 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -144,8 +144,8 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev,
         struct phonethdr *ph;
         int err;
 
-        if (skb->len + 2 > 0xffff) {
-                /* Phonet length field would overflow */
+        if (skb->len + 2 > 0xffff /* Phonet length field limit */ ||
+            skb->len + sizeof(struct phonethdr) > dev->mtu) {
                 err = -EMSGSIZE;
                 goto drop;
         }