Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix memory leak in iwlwifi, from Matti Gottlieb.

 2) Add missing registration of netfilter arp_tables into initial
    namespace, from Florian Westphal.

 3) Fix potential NULL deref in DecNET routing code.

 4) Restrict NETLINK_URELEASE to truly bound sockets only, from Dmitry
    Ivanov.

 5) Fix dst ref counting in VRF, from David Ahern.

 6) Fix TSO segmenting limits in i40e driver, from Alexander Duyck.

 7) Fix heap leak in PACKET_DIAG_MCLIST, from Mathias Krause.

 8) Ravalidate IPV6 datagram socket cached routes properly, particularly
    with UDP, from Martin KaFai Lau.

 9) Fix endian bug in RDS dp_ack_seq handling, from Qing Huang.

10) Fix stats typing in bcmgenet driver, from Eric Dumazet.

11) Openvswitch needs to orphan SKBs before ipv6 fragmentation handing,
    from Joe Stringer.

12) SPI device reference leak in spi_ks8895 PHY driver, from Mark Brown.

13) atl2 doesn't actually support scatter-gather, so don't advertise the
    feature.  From Ben Hucthings.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits)
  openvswitch: use flow protocol when recalculating ipv6 checksums
  Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets
  atl2: Disable unimplemented scatter/gather feature
  net/mlx4_en: Split SW RX dropped counter per RX ring
  net/mlx4_core: Don't allow to VF change global pause settings
  net/mlx4_core: Avoid repeated calls to pci enable/disable
  net/mlx4_core: Implement pci_resume callback
  net: phy: spi_ks8895: Don't leak references to SPI devices
  net: ethernet: davinci_emac: Fix platform_data overwrite
  net: ethernet: davinci_emac: Fix Unbalanced pm_runtime_enable
  qede: Fix single MTU sized packet from firmware GRO flow
  qede: Fix setting Skb network header
  qede: Fix various memory allocation error flows for fastpath
  tcp: Merge tx_flags and tskey in tcp_shifted_skb
  tcp: Merge tx_flags and tskey in tcp_collapse_retrans
  drivers: net: cpsw: fix wrong regs access in cpsw_ndo_open
  tcp: Fix SOF_TIMESTAMPING_TX_ACK when handling dup acks
  openvswitch: Orphan skbs before IPv6 defrag
  Revert "Prevent NUll pointer dereference with two PHYs on cpsw"
  VSOCK: Only check error on skb_recv_datagram when skb is NULL
  ...

29 files changed, 298 insertions, 133 deletions

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 8570bc7744c2..5a61f35412a0 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -370,7 +370,11 @@ ebt_check_match(struct ebt_entry_match *m, struct xt_mtchk_param *par,
             left - sizeof(struct ebt_entry_match) < m->match_size)
                 return -EINVAL;
 
-        match = xt_request_find_match(NFPROTO_BRIDGE, m->u.name, 0);
+        match = xt_find_match(NFPROTO_BRIDGE, m->u.name, 0);
+        if (IS_ERR(match) || match->family != NFPROTO_BRIDGE) {
+                request_module("ebt_%s", m->u.name);
+                match = xt_find_match(NFPROTO_BRIDGE, m->u.name, 0);
+        }
         if (IS_ERR(match))
                 return PTR_ERR(match);
         m->u.match = match;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d04c2d1c8c87..e561f9f07d6d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4502,13 +4502,16 @@ int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci)
                 __skb_push(skb, offset);
                 err = __vlan_insert_tag(skb, skb->vlan_proto,
                                         skb_vlan_tag_get(skb));
-                if (err)
+                if (err) {
+                        __skb_pull(skb, offset);
                         return err;
+                }
+
                 skb->protocol = skb->vlan_proto;
                 skb->mac_len += VLAN_HLEN;
-                __skb_pull(skb, offset);
 
                 skb_postpush_rcsum(skb, skb->data + (2 * ETH_ALEN), VLAN_HLEN);
+                __skb_pull(skb, offset);
         }
         __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci);
         return 0;
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 607a14f20d88..b1dc096d22f8 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1034,10 +1034,13 @@ source_ok:
         if (!fld.daddr) {
                 fld.daddr = fld.saddr;
 
-                err = -EADDRNOTAVAIL;
                 if (dev_out)
                         dev_put(dev_out);
+                err = -EINVAL;
                 dev_out = init_net.loopback_dev;
+                if (!dev_out->dn_ptr)
+                        goto out;
+                err = -EADDRNOTAVAIL;
                 dev_hold(dev_out);
                 if (!fld.daddr) {
                         fld.daddr =
@@ -1110,6 +1113,8 @@ source_ok:
                 if (dev_out == NULL)
                         goto out;
                 dn_db = rcu_dereference_raw(dev_out->dn_ptr);
+                if (!dn_db)
+                        goto e_inval;
                 /* Possible improvement - check all devices for local addr */
                 if (dn_dev_islocal(dev_out, fld.daddr)) {
                         dev_put(dev_out);
@@ -1151,6 +1156,8 @@ select_source:
                         dev_put(dev_out);
                 dev_out = init_net.loopback_dev;
                 dev_hold(dev_out);
+                if (!dev_out->dn_ptr)
+                        goto e_inval;
                 fld.flowidn_oif = dev_out->ifindex;
                 if (res.fi)
                         dn_fib_info_put(res.fi);
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index dd8c80dc32a2..8f8713b4388f 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -81,6 +81,12 @@ static int __init arptable_filter_init(void)
                 return ret;
         }
 
+        ret = arptable_filter_table_init(&init_net);
+        if (ret) {
+                unregister_pernet_subsys(&arptable_filter_net_ops);
+                kfree(arpfilter_ops);
+        }
+
         return ret;
 }
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 02c62299d717..60398a9370e7 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1438,9 +1438,9 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr,
 #endif
 }
 
-static struct rtable *rt_dst_alloc(struct net_device *dev,
-                                   unsigned int flags, u16 type,
-                                   bool nopolicy, bool noxfrm, bool will_cache)
+struct rtable *rt_dst_alloc(struct net_device *dev,
+                            unsigned int flags, u16 type,
+                            bool nopolicy, bool noxfrm, bool will_cache)
 {
         struct rtable *rt;
 
@@ -1468,6 +1468,7 @@ static struct rtable *rt_dst_alloc(struct net_device *dev,
 
         return rt;
 }
+EXPORT_SYMBOL(rt_dst_alloc);
 
 /* called in rcu_read_lock() section */
 static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
@@ -2045,6 +2046,18 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
                  */
                 if (fi && res->prefixlen < 4)
                         fi = NULL;
+        } else if ((type == RTN_LOCAL) && (orig_oif != 0) &&
+                   (orig_oif != dev_out->ifindex)) {
+                /* For local routes that require a particular output interface
+                 * we do not want to cache the result.  Caching the result
+                 * causes incorrect behaviour when there are multiple source
+                 * addresses on the interface, the end result being that if the
+                 * intended recipient is waiting on that interface for the
+                 * packet he won't receive it because it will be delivered on
+                 * the loopback interface and the IP_PKTINFO ipi_ifindex will
+                 * be set to the loopback interface as well.
+                 */
+                fi = NULL;
         }
 
         fnhe = NULL;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e6e65f79ade8..c124c3c12f7c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1309,6 +1309,7 @@ static bool tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
         if (skb == tcp_highest_sack(sk))
                 tcp_advance_highest_sack(sk, skb);
 
+        tcp_skb_collapse_tstamp(prev, skb);
         tcp_unlink_write_queue(skb, sk);
         sk_wmem_free_skb(sk, skb);
 
@@ -3098,7 +3099,8 @@ static void tcp_ack_tstamp(struct sock *sk, struct sk_buff *skb,
 
         shinfo = skb_shinfo(skb);
         if ((shinfo->tx_flags & SKBTX_ACK_TSTAMP) &&
-            between(shinfo->tskey, prior_snd_una, tcp_sk(sk)->snd_una - 1))
+            !before(shinfo->tskey, prior_snd_una) &&
+            before(shinfo->tskey, tcp_sk(sk)->snd_una))
                 __skb_tstamp_tx(skb, NULL, sk, SCM_TSTAMP_ACK);
 }
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 7d2dc015cd19..441ae9da3a23 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2441,6 +2441,20 @@ u32 __tcp_select_window(struct sock *sk)
         return window;
 }
 
+void tcp_skb_collapse_tstamp(struct sk_buff *skb,
+                             const struct sk_buff *next_skb)
+{
+        const struct skb_shared_info *next_shinfo = skb_shinfo(next_skb);
+        u8 tsflags = next_shinfo->tx_flags & SKBTX_ANY_TSTAMP;
+
+        if (unlikely(tsflags)) {
+                struct skb_shared_info *shinfo = skb_shinfo(skb);
+
+                shinfo->tx_flags |= tsflags;
+                shinfo->tskey = next_shinfo->tskey;
+        }
+}
+
 /* Collapses two adjacent SKB's during retransmission. */
 static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
 {
@@ -2484,6 +2498,8 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
 
         tcp_adjust_pcount(sk, next_skb, tcp_skb_pcount(next_skb));
 
+        tcp_skb_collapse_tstamp(skb, next_skb);
+
         sk_wmem_free_skb(sk, next_skb);
 }
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 08eed5e16df0..a2e7f55a1f61 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -339,8 +339,13 @@ found:
 
                 hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash);
                 spin_lock(&hslot2->lock);
-                hlist_nulls_add_head_rcu(&udp_sk(sk)->udp_portaddr_node,
-                                         &hslot2->head);
+                if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport &&
+                        sk->sk_family == AF_INET6)
+                        hlist_nulls_add_tail_rcu(&udp_sk(sk)->udp_portaddr_node,
+                                                 &hslot2->head);
+                else
+                        hlist_nulls_add_head_rcu(&udp_sk(sk)->udp_portaddr_node,
+                                                 &hslot2->head);
                 hslot2->count++;
                 spin_unlock(&hslot2->lock);
         }
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 27aed1afcf81..23cec53b568a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3255,6 +3255,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
                            void *ptr)
 {
         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+        struct netdev_notifier_changeupper_info *info;
         struct inet6_dev *idev = __in6_dev_get(dev);
         int run_pending = 0;
         int err;
@@ -3413,6 +3414,15 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
                 if (idev)
                         addrconf_type_change(dev, event);
                 break;
+
+        case NETDEV_CHANGEUPPER:
+                info = ptr;
+
+                /* flush all routes if dev is linked to or unlinked from
+                 * an L3 master device (e.g., VRF)
+                 */
+                if (info->upper_dev && netif_is_l3_master(info->upper_dev))
+                        addrconf_ifdown(dev, 0);
         }
 
         return NOTIFY_OK;
@@ -3438,6 +3448,12 @@ static void addrconf_type_change(struct net_device *dev, unsigned long event)
                 ipv6_mc_unmap(idev);
 }
 
+static bool addr_is_local(const struct in6_addr *addr)
+{
+        return ipv6_addr_type(addr) &
+                (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
+}
+
 static int addrconf_ifdown(struct net_device *dev, int how)
 {
         struct net *net = dev_net(dev);
@@ -3495,7 +3511,8 @@ restart:
                                  * address is retained on a down event
                                  */
                                 if (!keep_addr ||
-                                    !(ifa->flags & IFA_F_PERMANENT)) {
+                                    !(ifa->flags & IFA_F_PERMANENT) ||
+                                    addr_is_local(&ifa->addr)) {
                                         hlist_del_init_rcu(&ifa->addr_lst);
                                         goto restart;
                                 }
@@ -3544,7 +3561,8 @@ restart:
                 write_unlock_bh(&idev->lock);
                 spin_lock_bh(&ifa->lock);
 
-                if (keep_addr && (ifa->flags & IFA_F_PERMANENT)) {
+                if (keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
+                    !addr_is_local(&ifa->addr)) {
                         /* set state to skip the notifier below */
                         state = INET6_IFADDR_STATE_DEAD;
                         ifa->state = 0;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 428162155280..9dd3882fe6bf 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -40,18 +40,114 @@ static bool ipv6_mapped_addr_any(const struct in6_addr *a)
         return ipv6_addr_v4mapped(a) && (a->s6_addr32[3] == 0);
 }
 
+static void ip6_datagram_flow_key_init(struct flowi6 *fl6, struct sock *sk)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        struct ipv6_pinfo *np = inet6_sk(sk);
+
+        memset(fl6, 0, sizeof(*fl6));
+        fl6->flowi6_proto = sk->sk_protocol;
+        fl6->daddr = sk->sk_v6_daddr;
+        fl6->saddr = np->saddr;
+        fl6->flowi6_oif = sk->sk_bound_dev_if;
+        fl6->flowi6_mark = sk->sk_mark;
+        fl6->fl6_dport = inet->inet_dport;
+        fl6->fl6_sport = inet->inet_sport;
+        fl6->flowlabel = np->flow_label;
+
+        if (!fl6->flowi6_oif)
+                fl6->flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
+
+        if (!fl6->flowi6_oif && ipv6_addr_is_multicast(&fl6->daddr))
+                fl6->flowi6_oif = np->mcast_oif;
+
+        security_sk_classify_flow(sk, flowi6_to_flowi(fl6));
+}
+
+int ip6_datagram_dst_update(struct sock *sk, bool fix_sk_saddr)
+{
+        struct ip6_flowlabel *flowlabel = NULL;
+        struct in6_addr *final_p, final;
+        struct ipv6_txoptions *opt;
+        struct dst_entry *dst;
+        struct inet_sock *inet = inet_sk(sk);
+        struct ipv6_pinfo *np = inet6_sk(sk);
+        struct flowi6 fl6;
+        int err = 0;
+
+        if (np->sndflow && (np->flow_label & IPV6_FLOWLABEL_MASK)) {
+                flowlabel = fl6_sock_lookup(sk, np->flow_label);
+                if (!flowlabel)
+                        return -EINVAL;
+        }
+        ip6_datagram_flow_key_init(&fl6, sk);
+
+        rcu_read_lock();
+        opt = flowlabel ? flowlabel->opt : rcu_dereference(np->opt);
+        final_p = fl6_update_dst(&fl6, opt, &final);
+        rcu_read_unlock();
+
+        dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
+        if (IS_ERR(dst)) {
+                err = PTR_ERR(dst);
+                goto out;
+        }
+
+        if (fix_sk_saddr) {
+                if (ipv6_addr_any(&np->saddr))
+                        np->saddr = fl6.saddr;
+
+                if (ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+                        sk->sk_v6_rcv_saddr = fl6.saddr;
+                        inet->inet_rcv_saddr = LOOPBACK4_IPV6;
+                        if (sk->sk_prot->rehash)
+                                sk->sk_prot->rehash(sk);
+                }
+        }
+
+        ip6_dst_store(sk, dst,
+                      ipv6_addr_equal(&fl6.daddr, &sk->sk_v6_daddr) ?
+                      &sk->sk_v6_daddr : NULL,
+#ifdef CONFIG_IPV6_SUBTREES
+                      ipv6_addr_equal(&fl6.saddr, &np->saddr) ?
+                      &np->saddr :
+#endif
+                      NULL);
+
+out:
+        fl6_sock_release(flowlabel);
+        return err;
+}
+
+void ip6_datagram_release_cb(struct sock *sk)
+{
+        struct dst_entry *dst;
+
+        if (ipv6_addr_v4mapped(&sk->sk_v6_daddr))
+                return;
+
+        rcu_read_lock();
+        dst = __sk_dst_get(sk);
+        if (!dst || !dst->obsolete ||
+            dst->ops->check(dst, inet6_sk(sk)->dst_cookie)) {
+                rcu_read_unlock();
+                return;
+        }
+        rcu_read_unlock();
+
+        ip6_datagram_dst_update(sk, false);
+}
+EXPORT_SYMBOL_GPL(ip6_datagram_release_cb);
+
 static int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {
         struct sockaddr_in6     *usin = (struct sockaddr_in6 *) uaddr;
         struct inet_sock        *inet = inet_sk(sk);
         struct ipv6_pinfo       *np = inet6_sk(sk);
-        struct in6_addr *daddr, *final_p, final;
-        struct dst_entry        *dst;
-        struct flowi6           fl6;
-        struct ip6_flowlabel    *flowlabel = NULL;
-        struct ipv6_txoptions   *opt;
+        struct in6_addr         *daddr;
         int                     addr_type;
         int                     err;
+        __be32                  fl6_flowlabel = 0;
 
         if (usin->sin6_family == AF_INET) {
                 if (__ipv6_only_sock(sk))
@@ -66,15 +162,8 @@ static int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int a
         if (usin->sin6_family != AF_INET6)
                 return -EAFNOSUPPORT;
 
-        memset(&fl6, 0, sizeof(fl6));
-        if (np->sndflow) {
-                fl6.flowlabel = usin->sin6_flowinfo&IPV6_FLOWINFO_MASK;
-                if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
-                        flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
-                        if (!flowlabel)
-                                return -EINVAL;
-                }
-        }
+        if (np->sndflow)
+                fl6_flowlabel = usin->sin6_flowinfo & IPV6_FLOWINFO_MASK;
 
         addr_type = ipv6_addr_type(&usin->sin6_addr);
 
@@ -145,7 +234,7 @@ ipv4_connected:
         }
 
         sk->sk_v6_daddr = *daddr;
-        np->flow_label = fl6.flowlabel;
+        np->flow_label = fl6_flowlabel;
 
         inet->inet_dport = usin->sin6_port;
 
@@ -154,59 +243,13 @@ ipv4_connected:
          *      destination cache for it.
          */
 
-        fl6.flowi6_proto = sk->sk_protocol;
-        fl6.daddr = sk->sk_v6_daddr;
-        fl6.saddr = np->saddr;
-        fl6.flowi6_oif = sk->sk_bound_dev_if;
-        fl6.flowi6_mark = sk->sk_mark;
-        fl6.fl6_dport = inet->inet_dport;
-        fl6.fl6_sport = inet->inet_sport;
-
-        if (!fl6.flowi6_oif)
-                fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
-
-        if (!fl6.flowi6_oif && (addr_type&IPV6_ADDR_MULTICAST))
-                fl6.flowi6_oif = np->mcast_oif;
-
-        security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
-
-        rcu_read_lock();
-        opt = flowlabel ? flowlabel->opt : rcu_dereference(np->opt);
-        final_p = fl6_update_dst(&fl6, opt, &final);
-        rcu_read_unlock();
-
-        dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
-        err = 0;
-        if (IS_ERR(dst)) {
-                err = PTR_ERR(dst);
+        err = ip6_datagram_dst_update(sk, true);
+        if (err)
                 goto out;
-        }
-
-        /* source address lookup done in ip6_dst_lookup */
-
-        if (ipv6_addr_any(&np->saddr))
-                np->saddr = fl6.saddr;
-
-        if (ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
-                sk->sk_v6_rcv_saddr = fl6.saddr;
-                inet->inet_rcv_saddr = LOOPBACK4_IPV6;
-                if (sk->sk_prot->rehash)
-                        sk->sk_prot->rehash(sk);
-        }
-
-        ip6_dst_store(sk, dst,
-                      ipv6_addr_equal(&fl6.daddr, &sk->sk_v6_daddr) ?
-                      &sk->sk_v6_daddr : NULL,
-#ifdef CONFIG_IPV6_SUBTREES
-                      ipv6_addr_equal(&fl6.saddr, &np->saddr) ?
-                      &np->saddr :
-#endif
-                      NULL);
 
         sk->sk_state = TCP_ESTABLISHED;
         sk_set_txhash(sk);
 out:
-        fl6_sock_release(flowlabel);
         return err;
 }
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ed446639219c..d916d6ab9ad2 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -338,9 +338,9 @@ static struct rt6_info *__ip6_dst_alloc(struct net *net,
         return rt;
 }
 
-static struct rt6_info *ip6_dst_alloc(struct net *net,
-                                      struct net_device *dev,
-                                      int flags)
+struct rt6_info *ip6_dst_alloc(struct net *net,
+                               struct net_device *dev,
+                               int flags)
 {
         struct rt6_info *rt = __ip6_dst_alloc(net, dev, flags);
 
@@ -364,6 +364,7 @@ static struct rt6_info *ip6_dst_alloc(struct net *net,
 
         return rt;
 }
+EXPORT_SYMBOL(ip6_dst_alloc);
 
 static void ip6_dst_destroy(struct dst_entry *dst)
 {
@@ -1417,8 +1418,20 @@ EXPORT_SYMBOL_GPL(ip6_update_pmtu);
 
 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)
 {
+        struct dst_entry *dst;
+
         ip6_update_pmtu(skb, sock_net(sk), mtu,
                         sk->sk_bound_dev_if, sk->sk_mark);
+
+        dst = __sk_dst_get(sk);
+        if (!dst || !dst->obsolete ||
+            dst->ops->check(dst, inet6_sk(sk)->dst_cookie))
+                return;
+
+        bh_lock_sock(sk);
+        if (!sock_owned_by_user(sk) && !ipv6_addr_v4mapped(&sk->sk_v6_daddr))
+                ip6_datagram_dst_update(sk, false);
+        bh_unlock_sock(sk);
 }
 EXPORT_SYMBOL_GPL(ip6_sk_update_pmtu);
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8125931106be..6bc5c664fa46 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1539,6 +1539,7 @@ struct proto udpv6_prot = {
         .sendmsg           = udpv6_sendmsg,
         .recvmsg           = udpv6_recvmsg,
         .backlog_rcv       = __udpv6_queue_rcv_skb,
+        .release_cb        = ip6_datagram_release_cb,
         .hash              = udp_lib_hash,
         .unhash            = udp_lib_unhash,
         .rehash            = udp_v6_rehash,
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 278f3b9356ef..7cc1d9c22a9f 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -410,6 +410,8 @@ static void tcp_options(const struct sk_buff *skb,
                         length--;
                         continue;
                 default:
+                        if (length < 2)
+                                return;
                         opsize=*ptr++;
                         if (opsize < 2) /* "silly options" */
                                 return;
@@ -470,6 +472,8 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,
                         length--;
                         continue;
                 default:
+                        if (length < 2)
+                                return;
                         opsize = *ptr++;
                         if (opsize < 2) /* "silly options" */
                                 return;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 215fc08c02ab..330ebd600f25 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -688,7 +688,7 @@ static int netlink_release(struct socket *sock)
 
         skb_queue_purge(&sk->sk_write_queue);
 
-        if (nlk->portid) {
+        if (nlk->portid && nlk->bound) {
                 struct netlink_notify n = {
                                                 .net = sock_net(sk),
                                                 .protocol = sk->sk_protocol,
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index e9dd47b2a85b..879185fe183f 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -461,7 +461,7 @@ static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key,
                 mask_ipv6_addr(saddr, key->ipv6_src, mask->ipv6_src, masked);
 
                 if (unlikely(memcmp(saddr, masked, sizeof(masked)))) {
-                        set_ipv6_addr(skb, key->ipv6_proto, saddr, masked,
+                        set_ipv6_addr(skb, flow_key->ip.proto, saddr, masked,
                                       true);
                         memcpy(&flow_key->ipv6.addr.src, masked,
                                sizeof(flow_key->ipv6.addr.src));
@@ -483,7 +483,7 @@ static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key,
                                                              NULL, &flags)
                                                != NEXTHDR_ROUTING);
 
-                        set_ipv6_addr(skb, key->ipv6_proto, daddr, masked,
+                        set_ipv6_addr(skb, flow_key->ip.proto, daddr, masked,
                                       recalc_csum);
                         memcpy(&flow_key->ipv6.addr.dst, masked,
                                sizeof(flow_key->ipv6.addr.dst));
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 1b9d286756be..b5fea1101faa 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -367,6 +367,7 @@ static int handle_fragments(struct net *net, struct sw_flow_key *key,
         } else if (key->eth.type == htons(ETH_P_IPV6)) {
                 enum ip6_defrag_users user = IP6_DEFRAG_CONNTRACK_IN + zone;
 
+                skb_orphan(skb);
                 memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));
                 err = nf_ct_frag6_gather(net, skb, user);
                 if (err)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f12c17f355d9..18d0becbc46d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3521,6 +3521,7 @@ static int packet_mc_add(struct sock *sk, struct packet_mreq_max *mreq)
         i->ifindex = mreq->mr_ifindex;
         i->alen = mreq->mr_alen;
         memcpy(i->addr, mreq->mr_address, i->alen);
+        memset(i->addr + i->alen, 0, sizeof(i->addr) - i->alen);
         i->count = 1;
         i->next = po->mclist;
         po->mclist = i;
diff --git a/net/rds/cong.c b/net/rds/cong.c
index e6144b8246fd..6641bcf7c185 100644
--- a/net/rds/cong.c
+++ b/net/rds/cong.c
@@ -299,7 +299,7 @@ void rds_cong_set_bit(struct rds_cong_map *map, __be16 port)
         i = be16_to_cpu(port) / RDS_CONG_MAP_PAGE_BITS;
         off = be16_to_cpu(port) % RDS_CONG_MAP_PAGE_BITS;
 
-        __set_bit_le(off, (void *)map->m_page_addrs[i]);
+        set_bit_le(off, (void *)map->m_page_addrs[i]);
 }
 
 void rds_cong_clear_bit(struct rds_cong_map *map, __be16 port)
@@ -313,7 +313,7 @@ void rds_cong_clear_bit(struct rds_cong_map *map, __be16 port)
         i = be16_to_cpu(port) / RDS_CONG_MAP_PAGE_BITS;
         off = be16_to_cpu(port) % RDS_CONG_MAP_PAGE_BITS;
 
-        __clear_bit_le(off, (void *)map->m_page_addrs[i]);
+        clear_bit_le(off, (void *)map->m_page_addrs[i]);
 }
 
 static int rds_cong_test_bit(struct rds_cong_map *map, __be16 port)
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 8764970f0c24..310cabce2311 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -194,7 +194,7 @@ static void rds_ib_cm_fill_conn_param(struct rds_connection *conn,
                 dp->dp_protocol_major = RDS_PROTOCOL_MAJOR(protocol_version);
                 dp->dp_protocol_minor = RDS_PROTOCOL_MINOR(protocol_version);
                 dp->dp_protocol_minor_mask = cpu_to_be16(RDS_IB_SUPPORTED_PROTOCOLS);
-                dp->dp_ack_seq = rds_ib_piggyb_ack(ic);
+                dp->dp_ack_seq = cpu_to_be64(rds_ib_piggyb_ack(ic));
 
                 /* Advertise flow control */
                 if (ic->i_flowctl) {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index f18c35024207..80742edea96f 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -159,12 +159,15 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
         if (validate)
                 skb = validate_xmit_skb_list(skb, dev);
 
-        if (skb) {
+        if (likely(skb)) {
                 HARD_TX_LOCK(dev, txq, smp_processor_id());
                 if (!netif_xmit_frozen_or_stopped(txq))
                         skb = dev_hard_start_xmit(skb, dev, txq, &ret);
 
                 HARD_TX_UNLOCK(dev, txq);
+        } else {
+                spin_lock(root_lock);
+                return qdisc_qlen(q);
         }
         spin_lock(root_lock);
 
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 8d3d3625130e..084718f9b3da 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -866,8 +866,10 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
                                  * sender MUST assure that at least one T3-rtx
                                  * timer is running.
                                  */
-                                if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN)
-                                        sctp_transport_reset_timers(transport);
+                                if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN) {
+                                        sctp_transport_reset_t3_rtx(transport);
+                                        transport->last_time_sent = jiffies;
+                                }
                         }
                         break;
 
@@ -924,8 +926,10 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
                         error = sctp_outq_flush_rtx(q, packet,
                                                     rtx_timeout, &start_timer);
 
-                        if (start_timer)
-                                sctp_transport_reset_timers(transport);
+                        if (start_timer) {
+                                sctp_transport_reset_t3_rtx(transport);
+                                transport->last_time_sent = jiffies;
+                        }
 
                         /* This can happen on COOKIE-ECHO resend.  Only
                          * one chunk can get bundled with a COOKIE-ECHO.
@@ -1062,7 +1066,8 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
                         list_add_tail(&chunk->transmitted_list,
                                       &transport->transmitted);
 
-                        sctp_transport_reset_timers(transport);
+                        sctp_transport_reset_t3_rtx(transport);
+                        transport->last_time_sent = jiffies;
 
                         /* Only let one DATA chunk get bundled with a
                          * COOKIE-ECHO chunk.
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 7f0bf798205b..56f364d8f932 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3080,8 +3080,7 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
                         return SCTP_ERROR_RSRC_LOW;
 
                 /* Start the heartbeat timer. */
-                if (!mod_timer(&peer->hb_timer, sctp_transport_timeout(peer)))
-                        sctp_transport_hold(peer);
+                sctp_transport_reset_hb_timer(peer);
                 asoc->new_transport = peer;
                 break;
         case SCTP_PARAM_DEL_IP:
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 7fe56d0acabf..41b081a64752 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -69,8 +69,6 @@ static int sctp_side_effects(sctp_event_t event_type, sctp_subtype_t subtype,
                              sctp_cmd_seq_t *commands,
                              gfp_t gfp);
 
-static void sctp_cmd_hb_timer_update(sctp_cmd_seq_t *cmds,
-                                     struct sctp_transport *t);
 /********************************************************************
  * Helper functions
  ********************************************************************/
@@ -367,6 +365,7 @@ void sctp_generate_heartbeat_event(unsigned long data)
         struct sctp_association *asoc = transport->asoc;
         struct sock *sk = asoc->base.sk;
         struct net *net = sock_net(sk);
+        u32 elapsed, timeout;
 
         bh_lock_sock(sk);
         if (sock_owned_by_user(sk)) {
@@ -378,6 +377,16 @@ void sctp_generate_heartbeat_event(unsigned long data)
                 goto out_unlock;
         }
 
+        /* Check if we should still send the heartbeat or reschedule */
+        elapsed = jiffies - transport->last_time_sent;
+        timeout = sctp_transport_timeout(transport);
+        if (elapsed < timeout) {
+                elapsed = timeout - elapsed;
+                if (!mod_timer(&transport->hb_timer, jiffies + elapsed))
+                        sctp_transport_hold(transport);
+                goto out_unlock;
+        }
+
         error = sctp_do_sm(net, SCTP_EVENT_T_TIMEOUT,
                            SCTP_ST_TIMEOUT(SCTP_EVENT_TIMEOUT_HEARTBEAT),
                            asoc->state, asoc->ep, asoc,
@@ -507,7 +516,7 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
                                              0);
 
                 /* Update the hb timer to resend a heartbeat every rto */
-                sctp_cmd_hb_timer_update(commands, transport);
+                sctp_transport_reset_hb_timer(transport);
         }
 
         if (transport->state != SCTP_INACTIVE &&
@@ -634,11 +643,8 @@ static void sctp_cmd_hb_timers_start(sctp_cmd_seq_t *cmds,
          * hold a reference on the transport to make sure none of
          * the needed data structures go away.
          */
-        list_for_each_entry(t, &asoc->peer.transport_addr_list, transports) {
-
-                if (!mod_timer(&t->hb_timer, sctp_transport_timeout(t)))
-                        sctp_transport_hold(t);
-        }
+        list_for_each_entry(t, &asoc->peer.transport_addr_list, transports)
+                sctp_transport_reset_hb_timer(t);
 }
 
 static void sctp_cmd_hb_timers_stop(sctp_cmd_seq_t *cmds,
@@ -669,15 +675,6 @@ static void sctp_cmd_t3_rtx_timers_stop(sctp_cmd_seq_t *cmds,
 }
 
 
-/* Helper function to update the heartbeat timer. */
-static void sctp_cmd_hb_timer_update(sctp_cmd_seq_t *cmds,
-                                     struct sctp_transport *t)
-{
-        /* Update the heartbeat timer.  */
-        if (!mod_timer(&t->hb_timer, sctp_transport_timeout(t)))
-                sctp_transport_hold(t);
-}
-
 /* Helper function to handle the reception of an HEARTBEAT ACK.  */
 static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
                                   struct sctp_association *asoc,
@@ -742,8 +739,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
         sctp_transport_update_rto(t, (jiffies - hbinfo->sent_at));
 
         /* Update the heartbeat timer.  */
-        if (!mod_timer(&t->hb_timer, sctp_transport_timeout(t)))
-                sctp_transport_hold(t);
+        sctp_transport_reset_hb_timer(t);
 
         if (was_unconfirmed && asoc->peer.transport_count == 1)
                 sctp_transport_immediate_rtx(t);
@@ -1614,7 +1610,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
                 case SCTP_CMD_HB_TIMER_UPDATE:
                         t = cmd->obj.transport;
-                        sctp_cmd_hb_timer_update(commands, t);
+                        sctp_transport_reset_hb_timer(t);
                         break;
 
                 case SCTP_CMD_HB_TIMERS_STOP:
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 9b6b48c7524e..81b86678be4d 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -183,7 +183,7 @@ static void sctp_transport_destroy(struct sctp_transport *transport)
 /* Start T3_rtx timer if it is not already running and update the heartbeat
  * timer.  This routine is called every time a DATA chunk is sent.
  */
-void sctp_transport_reset_timers(struct sctp_transport *transport)
+void sctp_transport_reset_t3_rtx(struct sctp_transport *transport)
 {
         /* RFC 2960 6.3.2 Retransmission Timer Rules
          *
@@ -197,11 +197,18 @@ void sctp_transport_reset_timers(struct sctp_transport *transport)
                 if (!mod_timer(&transport->T3_rtx_timer,
                                jiffies + transport->rto))
                         sctp_transport_hold(transport);
+}
+
+void sctp_transport_reset_hb_timer(struct sctp_transport *transport)
+{
+        unsigned long expires;
 
         /* When a data chunk is sent, reset the heartbeat interval.  */
-        if (!mod_timer(&transport->hb_timer,
-                       sctp_transport_timeout(transport)))
-            sctp_transport_hold(transport);
+        expires = jiffies + sctp_transport_timeout(transport);
+        if (time_before(transport->hb_timer.expires, expires) &&
+            !mod_timer(&transport->hb_timer,
+                       expires + prandom_u32_max(transport->rto)))
+                sctp_transport_hold(transport);
 }
 
 /* This transport has been assigned to an association.
@@ -595,13 +602,13 @@ void sctp_transport_burst_reset(struct sctp_transport *t)
 unsigned long sctp_transport_timeout(struct sctp_transport *trans)
 {
         /* RTO + timer slack +/- 50% of RTO */
-        unsigned long timeout = (trans->rto >> 1) + prandom_u32_max(trans->rto);
+        unsigned long timeout = trans->rto >> 1;
 
         if (trans->state != SCTP_UNCONFIRMED &&
             trans->state != SCTP_PF)
                 timeout += trans->hbinterval;
 
-        return timeout + jiffies;
+        return timeout;
 }
 
 /* Reset transport variables to their initial values */
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 03a842870c52..e2bdb07a49a2 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -69,6 +69,7 @@ static int __net_init tipc_init_net(struct net *net)
         if (err)
                 goto out_nametbl;
 
+        INIT_LIST_HEAD(&tn->dist_queue);
         err = tipc_topsrv_start(net);
         if (err)
                 goto out_subscr;
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 5504d63503df..eff58dc53aa1 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -103,6 +103,9 @@ struct tipc_net {
         spinlock_t nametbl_lock;
         struct name_table *nametbl;
 
+        /* Name dist queue */
+        struct list_head dist_queue;
+
         /* Topology subscription server */
         struct tipc_server *topsrv;
         atomic_t subscription_count;
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index ebe9d0ff6e9e..6b626a64b517 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -40,11 +40,6 @@
 
 int sysctl_tipc_named_timeout __read_mostly = 2000;
 
-/**
- * struct tipc_dist_queue - queue holding deferred name table updates
- */
-static struct list_head tipc_dist_queue = LIST_HEAD_INIT(tipc_dist_queue);
-
 struct distr_queue_item {
         struct distr_item i;
         u32 dtype;
@@ -229,12 +224,31 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
         kfree_rcu(p, rcu);
 }
 
+/**
+ * tipc_dist_queue_purge - remove deferred updates from a node that went down
+ */
+static void tipc_dist_queue_purge(struct net *net, u32 addr)
+{
+        struct tipc_net *tn = net_generic(net, tipc_net_id);
+        struct distr_queue_item *e, *tmp;
+
+        spin_lock_bh(&tn->nametbl_lock);
+        list_for_each_entry_safe(e, tmp, &tn->dist_queue, next) {
+                if (e->node != addr)
+                        continue;
+                list_del(&e->next);
+                kfree(e);
+        }
+        spin_unlock_bh(&tn->nametbl_lock);
+}
+
 void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
 {
         struct publication *publ, *tmp;
 
         list_for_each_entry_safe(publ, tmp, nsub_list, nodesub_list)
                 tipc_publ_purge(net, publ, addr);
+        tipc_dist_queue_purge(net, addr);
 }
 
 /**
@@ -279,9 +293,11 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
  * tipc_named_add_backlog - add a failed name table update to the backlog
  *
  */
-static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
+static void tipc_named_add_backlog(struct net *net, struct distr_item *i,
+                                   u32 type, u32 node)
 {
         struct distr_queue_item *e;
+        struct tipc_net *tn = net_generic(net, tipc_net_id);
         unsigned long now = get_jiffies_64();
 
         e = kzalloc(sizeof(*e), GFP_ATOMIC);
@@ -291,7 +307,7 @@ static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
         e->node = node;
         e->expires = now + msecs_to_jiffies(sysctl_tipc_named_timeout);
         memcpy(e, i, sizeof(*i));
-        list_add_tail(&e->next, &tipc_dist_queue);
+        list_add_tail(&e->next, &tn->dist_queue);
 }
 
 /**
@@ -301,10 +317,11 @@ static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
 void tipc_named_process_backlog(struct net *net)
 {
         struct distr_queue_item *e, *tmp;
+        struct tipc_net *tn = net_generic(net, tipc_net_id);
         char addr[16];
         unsigned long now = get_jiffies_64();
 
-        list_for_each_entry_safe(e, tmp, &tipc_dist_queue, next) {
+        list_for_each_entry_safe(e, tmp, &tn->dist_queue, next) {
                 if (time_after(e->expires, now)) {
                         if (!tipc_update_nametbl(net, &e->i, e->node, e->dtype))
                                 continue;
@@ -344,7 +361,7 @@ void tipc_named_rcv(struct net *net, struct sk_buff_head *inputq)
                 node = msg_orignode(msg);
                 while (count--) {
                         if (!tipc_update_nametbl(net, item, node, mtype))
-                                tipc_named_add_backlog(item, mtype, node);
+                                tipc_named_add_backlog(net, item, mtype, node);
                         item++;
                 }
                 kfree_skb(skb);
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 662bdd20a748..56214736fe88 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1735,11 +1735,8 @@ static int vmci_transport_dgram_dequeue(struct vsock_sock *vsk,
         /* Retrieve the head sk_buff from the socket's receive queue. */
         err = 0;
         skb = skb_recv_datagram(&vsk->sk, flags, noblock, &err);
-        if (err)
-                return err;
-
         if (!skb)
-                return -EAGAIN;
+                return err;
 
         dg = (struct vmci_datagram *)skb->data;
         if (!dg)
@@ -2154,7 +2151,7 @@ module_exit(vmci_transport_exit);
 
 MODULE_AUTHOR("VMware, Inc.");
 MODULE_DESCRIPTION("VMCI transport for Virtual Sockets");
-MODULE_VERSION("1.0.3.0-k");
+MODULE_VERSION("1.0.4.0-k");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("vmware_vsock");
 MODULE_ALIAS_NETPROTO(PF_VSOCK);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 98c924260b3d..056a7307862b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -13216,7 +13216,7 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
         struct wireless_dev *wdev;
         struct cfg80211_beacon_registration *reg, *tmp;
 
-        if (state != NETLINK_URELEASE)
+        if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
                 return NOTIFY_DONE;
 
         rcu_read_lock();