Merge branch 'linus' into sched/core

Resolve cherry-picking conflicts:

Conflicts:
	mm/huge_memory.c
	mm/memory.c
	mm/mprotect.c

See this upstream merge commit for more details:

  52469b4fcd4f Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Signed-off-by: Ingo Molnar <mingo@kernel.org>

61 files changed, 475 insertions, 236 deletions

diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 309129732285..c7e634af8516 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -171,7 +171,7 @@ static size_t vlan_get_size(const struct net_device *dev)
 
         return nla_total_size(2) +      /* IFLA_VLAN_PROTOCOL */
                nla_total_size(2) +      /* IFLA_VLAN_ID */
-               sizeof(struct ifla_vlan_flags) + /* IFLA_VLAN_FLAGS */
+               nla_total_size(sizeof(struct ifla_vlan_flags)) + /* IFLA_VLAN_FLAGS */
                vlan_qos_map_size(vlan->nr_ingress_mappings) +
                vlan_qos_map_size(vlan->nr_egress_mappings);
 }
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index c72d1bcdcf49..1356af660b5b 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -65,6 +65,7 @@ static int __init batadv_init(void)
         batadv_recv_handler_init();
 
         batadv_iv_init();
+        batadv_nc_init();
 
         batadv_event_workqueue = create_singlethread_workqueue("bat_events");
 
@@ -142,7 +143,7 @@ int batadv_mesh_init(struct net_device *soft_iface)
         if (ret < 0)
                 goto err;
 
-        ret = batadv_nc_init(bat_priv);
+        ret = batadv_nc_mesh_init(bat_priv);
         if (ret < 0)
                 goto err;
 
@@ -167,7 +168,7 @@ void batadv_mesh_free(struct net_device *soft_iface)
         batadv_vis_quit(bat_priv);
 
         batadv_gw_node_purge(bat_priv);
-        batadv_nc_free(bat_priv);
+        batadv_nc_mesh_free(bat_priv);
         batadv_dat_free(bat_priv);
         batadv_bla_free(bat_priv);
 
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index a487d46e0aec..4ecc0b6bf8ab 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -35,6 +35,20 @@ static int batadv_nc_recv_coded_packet(struct sk_buff *skb,
                                        struct batadv_hard_iface *recv_if);
 
 /**
+ * batadv_nc_init - one-time initialization for network coding
+ */
+int __init batadv_nc_init(void)
+{
+        int ret;
+
+        /* Register our packet type */
+        ret = batadv_recv_handler_register(BATADV_CODED,
+                                           batadv_nc_recv_coded_packet);
+
+        return ret;
+}
+
+/**
  * batadv_nc_start_timer - initialise the nc periodic worker
  * @bat_priv: the bat priv with all the soft interface information
  */
@@ -45,10 +59,10 @@ static void batadv_nc_start_timer(struct batadv_priv *bat_priv)
 }
 
 /**
- * batadv_nc_init - initialise coding hash table and start house keeping
+ * batadv_nc_mesh_init - initialise coding hash table and start house keeping
  * @bat_priv: the bat priv with all the soft interface information
  */
-int batadv_nc_init(struct batadv_priv *bat_priv)
+int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
 {
         bat_priv->nc.timestamp_fwd_flush = jiffies;
         bat_priv->nc.timestamp_sniffed_purge = jiffies;
@@ -70,11 +84,6 @@ int batadv_nc_init(struct batadv_priv *bat_priv)
         batadv_hash_set_lock_class(bat_priv->nc.coding_hash,
                                    &batadv_nc_decoding_hash_lock_class_key);
 
-        /* Register our packet type */
-        if (batadv_recv_handler_register(BATADV_CODED,
-                                         batadv_nc_recv_coded_packet) < 0)
-                goto err;
-
         INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);
         batadv_nc_start_timer(bat_priv);
 
@@ -1721,12 +1730,11 @@ free_nc_packet:
 }
 
 /**
- * batadv_nc_free - clean up network coding memory
+ * batadv_nc_mesh_free - clean up network coding memory
  * @bat_priv: the bat priv with all the soft interface information
  */
-void batadv_nc_free(struct batadv_priv *bat_priv)
+void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
 {
-        batadv_recv_handler_unregister(BATADV_CODED);
         cancel_delayed_work_sync(&bat_priv->nc.work);
 
         batadv_nc_purge_paths(bat_priv, bat_priv->nc.coding_hash, NULL);
diff --git a/net/batman-adv/network-coding.h b/net/batman-adv/network-coding.h
index 85a4ec81ad50..ddfa618e80bf 100644
--- a/net/batman-adv/network-coding.h
+++ b/net/batman-adv/network-coding.h
@@ -22,8 +22,9 @@
 
 #ifdef CONFIG_BATMAN_ADV_NC
 
-int batadv_nc_init(struct batadv_priv *bat_priv);
-void batadv_nc_free(struct batadv_priv *bat_priv);
+int batadv_nc_init(void);
+int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
+void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
                               struct batadv_orig_node *orig_node,
                               struct batadv_orig_node *orig_neigh_node,
@@ -46,12 +47,17 @@ int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
 
 #else /* ifdef CONFIG_BATMAN_ADV_NC */
 
-static inline int batadv_nc_init(struct batadv_priv *bat_priv)
+static inline int batadv_nc_init(void)
 {
         return 0;
 }
 
-static inline void batadv_nc_free(struct batadv_priv *bat_priv)
+static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
+{
+        return 0;
+}
+
+static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
 {
         return;
 }
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index ffd5874f2592..33e8f23acddd 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -700,7 +700,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 
                 vid = nla_get_u16(tb[NDA_VLAN]);
 
-                if (vid >= VLAN_N_VID) {
+                if (!vid || vid >= VLAN_VID_MASK) {
                         pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
                                 vid);
                         return -EINVAL;
@@ -794,7 +794,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
 
                 vid = nla_get_u16(tb[NDA_VLAN]);
 
-                if (vid >= VLAN_N_VID) {
+                if (!vid || vid >= VLAN_VID_MASK) {
                         pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
                                 vid);
                         return -EINVAL;
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 85a09bb5ca51..b7b1914dfa25 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -453,7 +453,7 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
                 call_rcu_bh(&p->rcu, br_multicast_free_pg);
                 err = 0;
 
-                if (!mp->ports && !mp->mglist && mp->timer_armed &&
+                if (!mp->ports && !mp->mglist &&
                     netif_running(br->dev))
                         mod_timer(&mp->timer, jiffies);
                 break;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index d1c578630678..8b0b610ca2c9 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -272,7 +272,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
                 del_timer(&p->timer);
                 call_rcu_bh(&p->rcu, br_multicast_free_pg);
 
-                if (!mp->ports && !mp->mglist && mp->timer_armed &&
+                if (!mp->ports && !mp->mglist &&
                     netif_running(br->dev))
                         mod_timer(&mp->timer, jiffies);
 
@@ -620,7 +620,6 @@ rehash:
 
         mp->br = br;
         mp->addr = *group;
-
         setup_timer(&mp->timer, br_multicast_group_expired,
                     (unsigned long)mp);
 
@@ -660,6 +659,7 @@ static int br_multicast_add_group(struct net_bridge *br,
         struct net_bridge_mdb_entry *mp;
         struct net_bridge_port_group *p;
         struct net_bridge_port_group __rcu **pp;
+        unsigned long now = jiffies;
         int err;
 
         spin_lock(&br->multicast_lock);
@@ -674,6 +674,7 @@ static int br_multicast_add_group(struct net_bridge *br,
 
         if (!port) {
                 mp->mglist = true;
+                mod_timer(&mp->timer, now + br->multicast_membership_interval);
                 goto out;
         }
 
@@ -681,7 +682,7 @@ static int br_multicast_add_group(struct net_bridge *br,
              (p = mlock_dereference(*pp, br)) != NULL;
              pp = &p->next) {
                 if (p->port == port)
-                        goto out;
+                        goto found;
                 if ((unsigned long)p->port < (unsigned long)port)
                         break;
         }
@@ -692,6 +693,8 @@ static int br_multicast_add_group(struct net_bridge *br,
         rcu_assign_pointer(*pp, p);
         br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
 
+found:
+        mod_timer(&p->timer, now + br->multicast_membership_interval);
 out:
         err = 0;
 
@@ -1191,9 +1194,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
         if (!mp)
                 goto out;
 
-        mod_timer(&mp->timer, now + br->multicast_membership_interval);
-        mp->timer_armed = true;
-
         max_delay *= br->multicast_last_member_count;
 
         if (mp->mglist &&
@@ -1270,9 +1270,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
         if (!mp)
                 goto out;
 
-        mod_timer(&mp->timer, now + br->multicast_membership_interval);
-        mp->timer_armed = true;
-
         max_delay *= br->multicast_last_member_count;
         if (mp->mglist &&
             (timer_pending(&mp->timer) ?
@@ -1358,7 +1355,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
                         call_rcu_bh(&p->rcu, br_multicast_free_pg);
                         br_mdb_notify(br->dev, port, group, RTM_DELMDB);
 
-                        if (!mp->ports && !mp->mglist && mp->timer_armed &&
+                        if (!mp->ports && !mp->mglist &&
                             netif_running(br->dev))
                                 mod_timer(&mp->timer, jiffies);
                 }
@@ -1370,12 +1367,30 @@ static void br_multicast_leave_group(struct net_bridge *br,
                      br->multicast_last_member_interval;
 
         if (!port) {
-                if (mp->mglist && mp->timer_armed &&
+                if (mp->mglist &&
                     (timer_pending(&mp->timer) ?
                      time_after(mp->timer.expires, time) :
                      try_to_del_timer_sync(&mp->timer) >= 0)) {
                         mod_timer(&mp->timer, time);
                 }
+
+                goto out;
+        }
+
+        for (p = mlock_dereference(mp->ports, br);
+             p != NULL;
+             p = mlock_dereference(p->next, br)) {
+                if (p->port != port)
+                        continue;
+
+                if (!hlist_unhashed(&p->mglist) &&
+                    (timer_pending(&p->timer) ?
+                     time_after(p->timer.expires, time) :
+                     try_to_del_timer_sync(&p->timer) >= 0)) {
+                        mod_timer(&p->timer, time);
+                }
+
+                break;
         }
 out:
         spin_unlock(&br->multicast_lock);
@@ -1798,7 +1813,6 @@ void br_multicast_stop(struct net_bridge *br)
                 hlist_for_each_entry_safe(mp, n, &mdb->mhash[i],
                                           hlist[ver]) {
                         del_timer(&mp->timer);
-                        mp->timer_armed = false;
                         call_rcu_bh(&mp->rcu, br_multicast_free_group);
                 }
         }
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index e74ddc1c29a8..f75d92e4f96b 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -243,7 +243,7 @@ static int br_afspec(struct net_bridge *br,
 
                 vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]);
 
-                if (vinfo->vid >= VLAN_N_VID)
+                if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
                         return -EINVAL;
 
                 switch (cmd) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index efb57d911569..e14c33b42f75 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -126,7 +126,6 @@ struct net_bridge_mdb_entry
         struct timer_list               timer;
         struct br_ip                    addr;
         bool                            mglist;
-        bool                            timer_armed;
 };
 
 struct net_bridge_mdb_htable
@@ -643,9 +642,7 @@ static inline u16 br_get_pvid(const struct net_port_vlans *v)
          * vid wasn't set
          */
         smp_rmb();
-        return (v->pvid & VLAN_TAG_PRESENT) ?
-                        (v->pvid & ~VLAN_TAG_PRESENT) :
-                        VLAN_N_VID;
+        return v->pvid ?: VLAN_N_VID;
 }
 
 #else
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 108084a04671..656a6f3e40de 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -134,7 +134,7 @@ static void br_stp_start(struct net_bridge *br)
 
         if (br->bridge_forward_delay < BR_MIN_FORWARD_DELAY)
                 __br_set_forward_delay(br, BR_MIN_FORWARD_DELAY);
-        else if (br->bridge_forward_delay < BR_MAX_FORWARD_DELAY)
+        else if (br->bridge_forward_delay > BR_MAX_FORWARD_DELAY)
                 __br_set_forward_delay(br, BR_MAX_FORWARD_DELAY);
 
         if (r == 0) {
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 9a9ffe7e4019..53f0990eab58 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -45,37 +45,34 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
                 return 0;
         }
 
-        if (vid) {
-                if (v->port_idx) {
-                        p = v->parent.port;
-                        br = p->br;
-                        dev = p->dev;
-                } else {
-                        br = v->parent.br;
-                        dev = br->dev;
-                }
-                ops = dev->netdev_ops;
-
-                if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
-                        /* Add VLAN to the device filter if it is supported.
-                         * Stricly speaking, this is not necessary now, since
-                         * devices are made promiscuous by the bridge, but if
-                         * that ever changes this code will allow tagged
-                         * traffic to enter the bridge.
-                         */
-                        err = ops->ndo_vlan_rx_add_vid(dev, htons(ETH_P_8021Q),
-                                                       vid);
-                        if (err)
-                                return err;
-                }
-
-                err = br_fdb_insert(br, p, dev->dev_addr, vid);
-                if (err) {
-                        br_err(br, "failed insert local address into bridge "
-                               "forwarding table\n");
-                        goto out_filt;
-                }
+        if (v->port_idx) {
+                p = v->parent.port;
+                br = p->br;
+                dev = p->dev;
+        } else {
+                br = v->parent.br;
+                dev = br->dev;
+        }
+        ops = dev->netdev_ops;
+
+        if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
+                /* Add VLAN to the device filter if it is supported.
+                 * Stricly speaking, this is not necessary now, since
+                 * devices are made promiscuous by the bridge, but if
+                 * that ever changes this code will allow tagged
+                 * traffic to enter the bridge.
+                 */
+                err = ops->ndo_vlan_rx_add_vid(dev, htons(ETH_P_8021Q),
+                                               vid);
+                if (err)
+                        return err;
+        }
 
+        err = br_fdb_insert(br, p, dev->dev_addr, vid);
+        if (err) {
+                br_err(br, "failed insert local address into bridge "
+                       "forwarding table\n");
+                goto out_filt;
         }
 
         set_bit(vid, v->vlan_bitmap);
@@ -98,7 +95,7 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
         __vlan_delete_pvid(v, vid);
         clear_bit(vid, v->untagged_bitmap);
 
-        if (v->port_idx && vid) {
+        if (v->port_idx) {
                 struct net_device *dev = v->parent.port->dev;
                 const struct net_device_ops *ops = dev->netdev_ops;
 
@@ -192,6 +189,8 @@ out:
 bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
                         struct sk_buff *skb, u16 *vid)
 {
+        int err;
+
         /* If VLAN filtering is disabled on the bridge, all packets are
          * permitted.
          */
@@ -204,20 +203,32 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
         if (!v)
                 return false;
 
-        if (br_vlan_get_tag(skb, vid)) {
+        err = br_vlan_get_tag(skb, vid);
+        if (!*vid) {
                 u16 pvid = br_get_pvid(v);
 
-                /* Frame did not have a tag.  See if pvid is set
-                 * on this port.  That tells us which vlan untagged
-                 * traffic belongs to.
+                /* Frame had a tag with VID 0 or did not have a tag.
+                 * See if pvid is set on this port.  That tells us which
+                 * vlan untagged or priority-tagged traffic belongs to.
                  */
                 if (pvid == VLAN_N_VID)
                         return false;
 
-                /* PVID is set on this port.  Any untagged ingress
-                 * frame is considered to belong to this vlan.
+                /* PVID is set on this port.  Any untagged or priority-tagged
+                 * ingress frame is considered to belong to this vlan.
                  */
-                __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid);
+                *vid = pvid;
+                if (likely(err))
+                        /* Untagged Frame. */
+                        __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid);
+                else
+                        /* Priority-tagged Frame.
+                         * At this point, We know that skb->vlan_tci had
+                         * VLAN_TAG_PRESENT bit and its VID field was 0x000.
+                         * We update only VID field and preserve PCP field.
+                         */
+                        skb->vlan_tci |= pvid;
+
                 return true;
         }
 
@@ -248,7 +259,9 @@ bool br_allowed_egress(struct net_bridge *br,
         return false;
 }
 
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
 int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags)
 {
         struct net_port_vlans *pv = NULL;
@@ -278,7 +291,9 @@ out:
         return err;
 }
 
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
 int br_vlan_delete(struct net_bridge *br, u16 vid)
 {
         struct net_port_vlans *pv;
@@ -289,14 +304,9 @@ int br_vlan_delete(struct net_bridge *br, u16 vid)
         if (!pv)
                 return -EINVAL;
 
-        if (vid) {
-                /* If the VID !=0 remove fdb for this vid. VID 0 is special
-                 * in that it's the default and is always there in the fdb.
-                 */
-                spin_lock_bh(&br->hash_lock);
-                fdb_delete_by_addr(br, br->dev->dev_addr, vid);
-                spin_unlock_bh(&br->hash_lock);
-        }
+        spin_lock_bh(&br->hash_lock);
+        fdb_delete_by_addr(br, br->dev->dev_addr, vid);
+        spin_unlock_bh(&br->hash_lock);
 
         __vlan_del(pv, vid);
         return 0;
@@ -329,7 +339,9 @@ unlock:
         return 0;
 }
 
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
 int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
 {
         struct net_port_vlans *pv = NULL;
@@ -363,7 +375,9 @@ clean_up:
         return err;
 }
 
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
 int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
 {
         struct net_port_vlans *pv;
@@ -374,14 +388,9 @@ int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
         if (!pv)
                 return -EINVAL;
 
-        if (vid) {
-                /* If the VID !=0 remove fdb for this vid. VID 0 is special
-                 * in that it's the default and is always there in the fdb.
-                 */
-                spin_lock_bh(&port->br->hash_lock);
-                fdb_delete_by_addr(port->br, port->dev->dev_addr, vid);
-                spin_unlock_bh(&port->br->hash_lock);
-        }
+        spin_lock_bh(&port->br->hash_lock);
+        fdb_delete_by_addr(port->br, port->dev->dev_addr, vid);
+        spin_unlock_bh(&port->br->hash_lock);
 
         return __vlan_del(pv, vid);
 }
diff --git a/net/compat.c b/net/compat.c
index f0a1ba6c8086..89032580bd1d 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -71,6 +71,8 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
             __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
             __get_user(kmsg->msg_flags, &umsg->msg_flags))
                 return -EFAULT;
+        if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
+                return -EINVAL;
         kmsg->msg_name = compat_ptr(tmp1);
         kmsg->msg_iov = compat_ptr(tmp2);
         kmsg->msg_control = compat_ptr(tmp3);
diff --git a/net/core/dev.c b/net/core/dev.c
index 65f829cfd928..3430b1ed12e5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1917,7 +1917,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
         return new_map;
 }
 
-int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, u16 index)
+int netif_set_xps_queue(struct net_device *dev, const struct cpumask *mask,
+                        u16 index)
 {
         struct xps_dev_maps *dev_maps, *new_dev_maps = NULL;
         struct xps_map *map, *new_map;
diff --git a/net/core/filter.c b/net/core/filter.c
index 6438f29ff266..01b780856db2 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -644,7 +644,6 @@ void sk_filter_release_rcu(struct rcu_head *rcu)
         struct sk_filter *fp = container_of(rcu, struct sk_filter, rcu);
 
         bpf_jit_free(fp);
-        kfree(fp);
 }
 EXPORT_SYMBOL(sk_filter_release_rcu);
 
@@ -683,7 +682,7 @@ int sk_unattached_filter_create(struct sk_filter **pfp,
         if (fprog->filter == NULL)
                 return -EINVAL;
 
-        fp = kmalloc(fsize + sizeof(*fp), GFP_KERNEL);
+        fp = kmalloc(sk_filter_size(fprog->len), GFP_KERNEL);
         if (!fp)
                 return -ENOMEM;
         memcpy(fp->insns, fprog->filter, fsize);
@@ -723,6 +722,7 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
 {
         struct sk_filter *fp, *old_fp;
         unsigned int fsize = sizeof(struct sock_filter) * fprog->len;
+        unsigned int sk_fsize = sk_filter_size(fprog->len);
         int err;
 
         if (sock_flag(sk, SOCK_FILTER_LOCKED))
@@ -732,11 +732,11 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
         if (fprog->filter == NULL)
                 return -EINVAL;
 
-        fp = sock_kmalloc(sk, fsize+sizeof(*fp), GFP_KERNEL);
+        fp = sock_kmalloc(sk, sk_fsize, GFP_KERNEL);
         if (!fp)
                 return -ENOMEM;
         if (copy_from_user(fp->insns, fprog->filter, fsize)) {
-                sock_kfree_s(sk, fp, fsize+sizeof(*fp));
+                sock_kfree_s(sk, fp, sk_fsize);
                 return -EFAULT;
         }
 
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 3f1ec1586ae1..8d9d05edd2eb 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -10,6 +10,7 @@
 
 #include <net/secure_seq.h>
 
+#if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_INET)
 #define NET_SECRET_SIZE (MD5_MESSAGE_BYTES / 4)
 
 static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned;
@@ -29,6 +30,7 @@ static void net_secret_init(void)
                 cmpxchg(&net_secret[--i], 0, tmp);
         }
 }
+#endif
 
 #ifdef CONFIG_INET
 static u32 seq_scale(u32 seq)
diff --git a/net/core/sock.c b/net/core/sock.c
index 5b6beba494a3..0b39e7ae4383 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2319,6 +2319,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
         sk->sk_ll_usec          =       sysctl_net_busy_read;
 #endif
 
+        sk->sk_pacing_rate = ~0U;
         /*
          * Before updating sk_refcnt, we must commit prior changes to memory
          * (Documentation/RCU/rculist_nulls.txt for details)
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index c85e71e0c7ff..ff41b4d60d30 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1372,6 +1372,8 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev,
         real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
         if (!real_dev)
                 return -ENODEV;
+        if (real_dev->type != ARPHRD_IEEE802154)
+                return -EINVAL;
 
         lowpan_dev_info(dev)->real_dev = real_dev;
         lowpan_dev_info(dev)->fragment_tag = 0;
@@ -1386,6 +1388,9 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev,
 
         entry->ldev = dev;
 
+        /* Set the lowpan harware address to the wpan hardware address. */
+        memcpy(dev->dev_addr, real_dev->dev_addr, IEEE802154_ADDR_LEN);
+
         mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
         INIT_LIST_HEAD(&entry->list);
         list_add_tail(&entry->list, &lowpan_devices);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 7bd8983dbfcf..96da9c77deca 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -287,7 +287,7 @@ begintw:
                         if (unlikely(!INET_TW_MATCH(sk, net, acookie,
                                                     saddr, daddr, ports,
                                                     dif))) {
-                                sock_put(sk);
+                                inet_twsk_put(inet_twsk(sk));
                                 goto begintw;
                         }
                         goto out;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index a04d872c54f9..3982eabf61e1 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -772,15 +772,20 @@ static inline int ip_ufo_append_data(struct sock *sk,
                 /* initialize protocol header pointer */
                 skb->transport_header = skb->network_header + fragheaderlen;
 
-                skb->ip_summed = CHECKSUM_PARTIAL;
                 skb->csum = 0;
 
-                /* specify the length of each IP datagram fragment */
-                skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
-                skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
                 __skb_queue_tail(queue, skb);
+        } else if (skb_is_gso(skb)) {
+                goto append;
         }
 
+        skb->ip_summed = CHECKSUM_PARTIAL;
+        /* specify the length of each IP datagram fragment */
+        skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
+        skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
+append:
         return skb_append_datato_frags(sk, skb, getfrag, from,
                                        (length - transhdrlen));
 }
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index e805e7b3030e..6e87f853d033 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -125,8 +125,17 @@ static int vti_rcv(struct sk_buff *skb)
                                   iph->saddr, iph->daddr, 0);
         if (tunnel != NULL) {
                 struct pcpu_tstats *tstats;
+                u32 oldmark = skb->mark;
+                int ret;
 
-                if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+
+                /* temporarily mark the skb with the tunnel o_key, to
+                 * only match policies with this mark.
+                 */
+                skb->mark = be32_to_cpu(tunnel->parms.o_key);
+                ret = xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb);
+                skb->mark = oldmark;
+                if (!ret)
                         return -1;
 
                 tstats = this_cpu_ptr(tunnel->dev->tstats);
@@ -135,7 +144,6 @@ static int vti_rcv(struct sk_buff *skb)
                 tstats->rx_bytes += skb->len;
                 u64_stats_update_end(&tstats->syncp);
 
-                skb->mark = 0;
                 secpath_reset(skb);
                 skb->dev = tunnel->dev;
                 return 1;
@@ -167,7 +175,7 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
         memset(&fl4, 0, sizeof(fl4));
         flowi4_init_output(&fl4, tunnel->parms.link,
-                           be32_to_cpu(tunnel->parms.i_key), RT_TOS(tos),
+                           be32_to_cpu(tunnel->parms.o_key), RT_TOS(tos),
                            RT_SCOPE_UNIVERSE,
                            IPPROTO_IPIP, 0,
                            dst, tiph->saddr, 0, 0);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 727f4365bcdf..6011615e810d 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2072,7 +2072,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
                                                               RT_SCOPE_LINK);
                         goto make_route;
                 }
-                if (fl4->saddr) {
+                if (!fl4->saddr) {
                         if (ipv4_is_multicast(fl4->daddr))
                                 fl4->saddr = inet_select_addr(dev_out, 0,
                                                               fl4->flowi4_scope);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 25a89eaa669d..a16b01b537ba 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1284,7 +1284,10 @@ static bool tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
                 tp->lost_cnt_hint -= tcp_skb_pcount(prev);
         }
 
-        TCP_SKB_CB(skb)->tcp_flags |= TCP_SKB_CB(prev)->tcp_flags;
+        TCP_SKB_CB(prev)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags;
+        if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
+                TCP_SKB_CB(prev)->end_seq++;
+
         if (skb == tcp_highest_sack(sk))
                 tcp_advance_highest_sack(sk, skb);
 
@@ -3288,7 +3291,7 @@ static void tcp_process_tlp_ack(struct sock *sk, u32 ack, int flag)
                         tcp_init_cwnd_reduction(sk, true);
                         tcp_set_ca_state(sk, TCP_CA_CWR);
                         tcp_end_cwnd_reduction(sk);
-                        tcp_set_ca_state(sk, TCP_CA_Open);
+                        tcp_try_keep_open(sk);
                         NET_INC_STATS_BH(sock_net(sk),
                                          LINUX_MIB_TCPLOSSPROBERECOVERY);
                 }
@@ -5709,6 +5712,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 } else
                         tcp_init_metrics(sk);
 
+                tcp_update_pacing_rate(sk);
+
                 /* Prevent spurious tcp_cwnd_restart() on first data packet */
                 tp->lsndtime = tcp_time_stamp;
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e6bb8256e59f..d46f2143305c 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -637,6 +637,8 @@ static unsigned int tcp_established_options(struct sock *sk, struct sk_buff *skb
         unsigned int size = 0;
         unsigned int eff_sacks;
 
+        opts->options = 0;
+
 #ifdef CONFIG_TCP_MD5SIG
         *md5 = tp->af_specific->md5_lookup(sk, sk);
         if (unlikely(*md5)) {
@@ -984,8 +986,10 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
 static void tcp_set_skb_tso_segs(const struct sock *sk, struct sk_buff *skb,
                                  unsigned int mss_now)
 {
-        if (skb->len <= mss_now || !sk_can_gso(sk) ||
-            skb->ip_summed == CHECKSUM_NONE) {
+        /* Make sure we own this skb before messing gso_size/gso_segs */
+        WARN_ON_ONCE(skb_cloned(skb));
+
+        if (skb->len <= mss_now || skb->ip_summed == CHECKSUM_NONE) {
                 /* Avoid the costly divide in the normal
                  * non-TSO case.
                  */
@@ -1065,9 +1069,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
         if (nsize < 0)
                 nsize = 0;
 
-        if (skb_cloned(skb) &&
-            skb_is_nonlinear(skb) &&
-            pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+        if (skb_unclone(skb, GFP_ATOMIC))
                 return -ENOMEM;
 
         /* Get a new skb... force flag on. */
@@ -2342,6 +2344,8 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
                 int oldpcount = tcp_skb_pcount(skb);
 
                 if (unlikely(oldpcount > 1)) {
+                        if (skb_unclone(skb, GFP_ATOMIC))
+                                return -ENOMEM;
                         tcp_init_tso_segs(sk, skb, cur_mss);
                         tcp_adjust_pcount(sk, skb, oldpcount - tcp_skb_pcount(skb));
                 }
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 9a459be24af7..ccde54248c8c 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -107,6 +107,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 
         memset(fl4, 0, sizeof(struct flowi4));
         fl4->flowi4_mark = skb->mark;
+        fl4->flowi4_oif = skb_dst(skb)->dev->ifindex;
 
         if (!ip_is_fragment(iph)) {
                 switch (iph->protocol) {
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 73784c3d4642..82e1da3a40b9 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -618,8 +618,7 @@ static void ah6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         struct ip_auth_hdr *ah = (struct ip_auth_hdr*)(skb->data+offset);
         struct xfrm_state *x;
 
-        if (type != ICMPV6_DEST_UNREACH &&
-            type != ICMPV6_PKT_TOOBIG &&
+        if (type != ICMPV6_PKT_TOOBIG &&
             type != NDISC_REDIRECT)
                 return;
 
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index d3618a78fcac..e67e63f9858d 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -436,8 +436,7 @@ static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
         struct ip_esp_hdr *esph = (struct ip_esp_hdr *)(skb->data + offset);
         struct xfrm_state *x;
 
-        if (type != ICMPV6_DEST_UNREACH &&
-            type != ICMPV6_PKT_TOOBIG &&
+        if (type != ICMPV6_PKT_TOOBIG &&
             type != NDISC_REDIRECT)
                 return;
 
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 32b4a1675d82..066640e0ba8e 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -116,7 +116,7 @@ begintw:
                         }
                         if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
                                                      ports, dif))) {
-                                sock_put(sk);
+                                inet_twsk_put(inet_twsk(sk));
                                 goto begintw;
                         }
                         goto out;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 7bb5446b9d73..bf4a9a084de5 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -976,6 +976,7 @@ static void ip6gre_tnl_link_config(struct ip6_tnl *t, int set_mtu)
                 if (t->parms.o_flags&GRE_SEQ)
                         addend += 4;
         }
+        t->hlen = addend;
 
         if (p->flags & IP6_TNL_F_CAP_XMIT) {
                 int strict = (ipv6_addr_type(&p->raddr) &
@@ -1002,8 +1003,6 @@ static void ip6gre_tnl_link_config(struct ip6_tnl *t, int set_mtu)
                 }
                 ip6_rt_put(rt);
         }
-
-        t->hlen = addend;
 }
 
 static int ip6gre_tnl_change(struct ip6_tnl *t,
@@ -1173,9 +1172,8 @@ done:
 
 static int ip6gre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 {
-        struct ip6_tnl *tunnel = netdev_priv(dev);
         if (new_mtu < 68 ||
-            new_mtu > 0xFFF8 - dev->hard_header_len - tunnel->hlen)
+            new_mtu > 0xFFF8 - dev->hard_header_len)
                 return -EINVAL;
         dev->mtu = new_mtu;
         return 0;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index a54c45ce4a48..91fb4e8212f5 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -105,7 +105,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
         }
 
         rcu_read_lock_bh();
-        nexthop = rt6_nexthop((struct rt6_info *)dst, &ipv6_hdr(skb)->daddr);
+        nexthop = rt6_nexthop((struct rt6_info *)dst);
         neigh = __ipv6_neigh_lookup_noref(dst->dev, nexthop);
         if (unlikely(!neigh))
                 neigh = __neigh_create(&nd_tbl, nexthop, dst->dev, false);
@@ -874,7 +874,7 @@ static int ip6_dst_lookup_tail(struct sock *sk,
          */
         rt = (struct rt6_info *) *dst;
         rcu_read_lock_bh();
-        n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt, &fl6->daddr));
+        n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt));
         err = n && !(n->nud_state & NUD_VALID) ? -EINVAL : 0;
         rcu_read_unlock_bh();
 
@@ -1008,6 +1008,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
 
 {
         struct sk_buff *skb;
+        struct frag_hdr fhdr;
         int err;
 
         /* There is support for UDP large send offload by network
@@ -1015,8 +1016,6 @@ static inline int ip6_ufo_append_data(struct sock *sk,
          * udp datagram
          */
         if ((skb = skb_peek_tail(&sk->sk_write_queue)) == NULL) {
-                struct frag_hdr fhdr;
-
                 skb = sock_alloc_send_skb(sk,
                         hh_len + fragheaderlen + transhdrlen + 20,
                         (flags & MSG_DONTWAIT), &err);
@@ -1036,20 +1035,24 @@ static inline int ip6_ufo_append_data(struct sock *sk,
                 skb->transport_header = skb->network_header + fragheaderlen;
 
                 skb->protocol = htons(ETH_P_IPV6);
-                skb->ip_summed = CHECKSUM_PARTIAL;
                 skb->csum = 0;
 
-                /* Specify the length of each IPv6 datagram fragment.
-                 * It has to be a multiple of 8.
-                 */
-                skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
-                                             sizeof(struct frag_hdr)) & ~7;
-                skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
-                ipv6_select_ident(&fhdr, rt);
-                skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
                 __skb_queue_tail(&sk->sk_write_queue, skb);
+        } else if (skb_is_gso(skb)) {
+                goto append;
         }
 
+        skb->ip_summed = CHECKSUM_PARTIAL;
+        /* Specify the length of each IPv6 datagram fragment.
+         * It has to be a multiple of 8.
+         */
+        skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
+                                     sizeof(struct frag_hdr)) & ~7;
+        skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+        ipv6_select_ident(&fhdr, rt);
+        skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
+
+append:
         return skb_append_datato_frags(sk, skb, getfrag, from,
                                        (length - transhdrlen));
 }
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index a791552e0422..583b77e2f69b 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1430,9 +1430,17 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static int
 ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
 {
-        if (new_mtu < IPV6_MIN_MTU) {
-                return -EINVAL;
+        struct ip6_tnl *tnl = netdev_priv(dev);
+
+        if (tnl->parms.proto == IPPROTO_IPIP) {
+                if (new_mtu < 68)
+                        return -EINVAL;
+        } else {
+                if (new_mtu < IPV6_MIN_MTU)
+                        return -EINVAL;
         }
+        if (new_mtu > 0xFFF8 - dev->hard_header_len)
+                return -EINVAL;
         dev->mtu = new_mtu;
         return 0;
 }
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 5636a912074a..ce507d9e1c90 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -64,8 +64,7 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                 (struct ip_comp_hdr *)(skb->data + offset);
         struct xfrm_state *x;
 
-        if (type != ICMPV6_DEST_UNREACH &&
-            type != ICMPV6_PKT_TOOBIG &&
+        if (type != ICMPV6_PKT_TOOBIG &&
             type != NDISC_REDIRECT)
                 return;
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c979dd96d82a..f54e3a101098 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -476,6 +476,24 @@ out:
 }
 
 #ifdef CONFIG_IPV6_ROUTER_PREF
+struct __rt6_probe_work {
+        struct work_struct work;
+        struct in6_addr target;
+        struct net_device *dev;
+};
+
+static void rt6_probe_deferred(struct work_struct *w)
+{
+        struct in6_addr mcaddr;
+        struct __rt6_probe_work *work =
+                container_of(w, struct __rt6_probe_work, work);
+
+        addrconf_addr_solict_mult(&work->target, &mcaddr);
+        ndisc_send_ns(work->dev, NULL, &work->target, &mcaddr, NULL);
+        dev_put(work->dev);
+        kfree(w);
+}
+
 static void rt6_probe(struct rt6_info *rt)
 {
         struct neighbour *neigh;
@@ -499,17 +517,23 @@ static void rt6_probe(struct rt6_info *rt)
 
         if (!neigh ||
             time_after(jiffies, neigh->updated + rt->rt6i_idev->cnf.rtr_probe_interval)) {
-                struct in6_addr mcaddr;
-                struct in6_addr *target;
+                struct __rt6_probe_work *work;
 
-                if (neigh) {
+                work = kmalloc(sizeof(*work), GFP_ATOMIC);
+
+                if (neigh && work)
                         neigh->updated = jiffies;
+
+                if (neigh)
                         write_unlock(&neigh->lock);
-                }
 
-                target = (struct in6_addr *)&rt->rt6i_gateway;
-                addrconf_addr_solict_mult(target, &mcaddr);
-                ndisc_send_ns(rt->dst.dev, NULL, target, &mcaddr, NULL);
+                if (work) {
+                        INIT_WORK(&work->work, rt6_probe_deferred);
+                        work->target = rt->rt6i_gateway;
+                        dev_hold(rt->dst.dev);
+                        work->dev = rt->dst.dev;
+                        schedule_work(&work->work);
+                }
         } else {
 out:
                 write_unlock(&neigh->lock);
@@ -851,7 +875,6 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort,
                         if (ort->rt6i_dst.plen != 128 &&
                             ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
                                 rt->rt6i_flags |= RTF_ANYCAST;
-                        rt->rt6i_gateway = *daddr;
                 }
 
                 rt->rt6i_flags |= RTF_CACHE;
@@ -1338,6 +1361,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
         rt->dst.flags |= DST_HOST;
         rt->dst.output  = ip6_output;
         atomic_set(&rt->dst.__refcnt, 1);
+        rt->rt6i_gateway  = fl6->daddr;
         rt->rt6i_dst.addr = fl6->daddr;
         rt->rt6i_dst.plen = 128;
         rt->rt6i_idev     = idev;
@@ -1873,7 +1897,10 @@ static struct rt6_info *ip6_rt_copy(struct rt6_info *ort,
                         in6_dev_hold(rt->rt6i_idev);
                 rt->dst.lastuse = jiffies;
 
-                rt->rt6i_gateway = ort->rt6i_gateway;
+                if (ort->rt6i_flags & RTF_GATEWAY)
+                        rt->rt6i_gateway = ort->rt6i_gateway;
+                else
+                        rt->rt6i_gateway = *dest;
                 rt->rt6i_flags = ort->rt6i_flags;
                 if ((ort->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) ==
                     (RTF_DEFAULT | RTF_ADDRCONF))
@@ -2160,6 +2187,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
         else
                 rt->rt6i_flags |= RTF_LOCAL;
 
+        rt->rt6i_gateway  = *addr;
         rt->rt6i_dst.addr = *addr;
         rt->rt6i_dst.plen = 128;
         rt->rt6i_table = fib6_get_table(net, RT6_TABLE_LOCAL);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 72b7eaaf3ca0..18786098fd41 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1225,9 +1225,6 @@ do_udp_sendmsg:
         if (tclass < 0)
                 tclass = np->tclass;
 
-        if (dontfrag < 0)
-                dontfrag = np->dontfrag;
-
         if (msg->msg_flags&MSG_CONFIRM)
                 goto do_confirm;
 back_from_confirm:
@@ -1246,6 +1243,8 @@ back_from_confirm:
         up->pending = AF_INET6;
 
 do_append_data:
+        if (dontfrag < 0)
+                dontfrag = np->dontfrag;
         up->len += ulen;
         getfrag  =  is_udplite ?  udplite_getfrag : ip_generic_getfrag;
         err = ip6_append_data(sk, getfrag, msg->msg_iov, ulen,
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 23ed03d786c8..08ed2772b7aa 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -138,6 +138,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 
         memset(fl6, 0, sizeof(struct flowi6));
         fl6->flowi6_mark = skb->mark;
+        fl6->flowi6_oif = skb_dst(skb)->dev->ifindex;
 
         fl6->daddr = reverse ? hdr->saddr : hdr->daddr;
         fl6->saddr = reverse ? hdr->daddr : hdr->saddr;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 9d585370c5b4..911ef03bf8fb 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1098,7 +1098,8 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
 
         x->id.proto = proto;
         x->id.spi = sa->sadb_sa_spi;
-        x->props.replay_window = sa->sadb_sa_replay;
+        x->props.replay_window = min_t(unsigned int, sa->sadb_sa_replay,
+                                        (sizeof(x->replay.bitmap) * 8));
         if (sa->sadb_sa_flags & SADB_SAFLAGS_NOECN)
                 x->props.flags |= XFRM_STATE_NOECN;
         if (sa->sadb_sa_flags & SADB_SAFLAGS_DECAP_DSCP)
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index feae495a0a30..b076e8309bc2 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -115,6 +115,11 @@ struct l2tp_net {
 static void l2tp_session_set_header_len(struct l2tp_session *session, int version);
 static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
 
+static inline struct l2tp_tunnel *l2tp_tunnel(struct sock *sk)
+{
+        return sk->sk_user_data;
+}
+
 static inline struct l2tp_net *l2tp_pernet(struct net *net)
 {
         BUG_ON(!net);
@@ -504,7 +509,7 @@ static inline int l2tp_verify_udp_checksum(struct sock *sk,
                 return 0;
 
 #if IS_ENABLED(CONFIG_IPV6)
-        if (sk->sk_family == PF_INET6) {
+        if (sk->sk_family == PF_INET6 && !l2tp_tunnel(sk)->v4mapped) {
                 if (!uh->check) {
                         LIMIT_NETDEBUG(KERN_INFO "L2TP: IPv6: checksum is 0\n");
                         return 1;
@@ -1128,7 +1133,7 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
         /* Queue the packet to IP for output */
         skb->local_df = 1;
 #if IS_ENABLED(CONFIG_IPV6)
-        if (skb->sk->sk_family == PF_INET6)
+        if (skb->sk->sk_family == PF_INET6 && !tunnel->v4mapped)
                 error = inet6_csk_xmit(skb, NULL);
         else
 #endif
@@ -1255,7 +1260,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len
 
                 /* Calculate UDP checksum if configured to do so */
 #if IS_ENABLED(CONFIG_IPV6)
-                if (sk->sk_family == PF_INET6)
+                if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
                         l2tp_xmit_ipv6_csum(sk, skb, udp_len);
                 else
 #endif
@@ -1304,10 +1309,9 @@ EXPORT_SYMBOL_GPL(l2tp_xmit_skb);
  */
 static void l2tp_tunnel_destruct(struct sock *sk)
 {
-        struct l2tp_tunnel *tunnel;
+        struct l2tp_tunnel *tunnel = l2tp_tunnel(sk);
         struct l2tp_net *pn;
 
-        tunnel = sk->sk_user_data;
         if (tunnel == NULL)
                 goto end;
 
@@ -1675,7 +1679,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
         }
 
         /* Check if this socket has already been prepped */
-        tunnel = (struct l2tp_tunnel *)sk->sk_user_data;
+        tunnel = l2tp_tunnel(sk);
         if (tunnel != NULL) {
                 /* This socket has already been prepped */
                 err = -EBUSY;
@@ -1704,6 +1708,24 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
         if (cfg != NULL)
                 tunnel->debug = cfg->debug;
 
+#if IS_ENABLED(CONFIG_IPV6)
+        if (sk->sk_family == PF_INET6) {
+                struct ipv6_pinfo *np = inet6_sk(sk);
+
+                if (ipv6_addr_v4mapped(&np->saddr) &&
+                    ipv6_addr_v4mapped(&np->daddr)) {
+                        struct inet_sock *inet = inet_sk(sk);
+
+                        tunnel->v4mapped = true;
+                        inet->inet_saddr = np->saddr.s6_addr32[3];
+                        inet->inet_rcv_saddr = np->rcv_saddr.s6_addr32[3];
+                        inet->inet_daddr = np->daddr.s6_addr32[3];
+                } else {
+                        tunnel->v4mapped = false;
+                }
+        }
+#endif
+
         /* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
         tunnel->encap = encap;
         if (encap == L2TP_ENCAPTYPE_UDP) {
@@ -1712,7 +1734,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
                 udp_sk(sk)->encap_rcv = l2tp_udp_encap_recv;
                 udp_sk(sk)->encap_destroy = l2tp_udp_encap_destroy;
 #if IS_ENABLED(CONFIG_IPV6)
-                if (sk->sk_family == PF_INET6)
+                if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
                         udpv6_encap_enable();
                 else
 #endif
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 66a559b104b6..6f251cbc2ed7 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -194,6 +194,9 @@ struct l2tp_tunnel {
         struct sock             *sock;          /* Parent socket */
         int                     fd;             /* Parent fd, if tunnel socket
                                                  * was created by userspace */
+#if IS_ENABLED(CONFIG_IPV6)
+        bool                    v4mapped;
+#endif
 
         struct work_struct      del_work;
 
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 5ebee2ded9e9..8c46b271064a 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -353,7 +353,9 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh
                 goto error_put_sess_tun;
         }
 
+        local_bh_disable();
         l2tp_xmit_skb(session, skb, session->hdr_len);
+        local_bh_enable();
 
         sock_put(ps->tunnel_sock);
         sock_put(sk);
@@ -422,7 +424,9 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
         skb->data[0] = ppph[0];
         skb->data[1] = ppph[1];
 
+        local_bh_disable();
         l2tp_xmit_skb(session, skb, session->hdr_len);
+        local_bh_enable();
 
         sock_put(sk_tun);
         sock_put(sk);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2e7855a1b10d..629dee7ec9bf 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3518,7 +3518,7 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
                 return -EINVAL;
         }
         band = chanctx_conf->def.chan->band;
-        sta = sta_info_get(sdata, peer);
+        sta = sta_info_get_bss(sdata, peer);
         if (sta) {
                 qos = test_sta_flag(sta, WLAN_STA_WME);
         } else {
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b6186517ec56..611abfcfb5eb 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -893,6 +893,8 @@ struct tpt_led_trigger {
  *      that the scan completed.
  * @SCAN_ABORTED: Set for our scan work function when the driver reported
  *      a scan complete for an aborted scan.
+ * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
+ *      cancelled.
  */
 enum {
         SCAN_SW_SCANNING,
@@ -900,6 +902,7 @@ enum {
         SCAN_ONCHANNEL_SCANNING,
         SCAN_COMPLETED,
         SCAN_ABORTED,
+        SCAN_HW_CANCELLED,
 };
 
 /**
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index acd1f71adc03..0c2a29484c07 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -394,6 +394,8 @@ void ieee80211_sw_roc_work(struct work_struct *work)
 
                 if (started)
                         ieee80211_start_next_roc(local);
+                else if (list_empty(&local->roc_list))
+                        ieee80211_run_deferred_scan(local);
         }
 
  out_unlock:
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 54395d7583ba..674eac1f996c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3056,6 +3056,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
         case NL80211_IFTYPE_ADHOC:
                 if (!bssid)
                         return 0;
+                if (ether_addr_equal(sdata->vif.addr, hdr->addr2) ||
+                    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2))
+                        return 0;
                 if (ieee80211_is_beacon(hdr->frame_control)) {
                         return 1;
                 } else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) {
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 08afe74b98f4..d2d17a449224 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -238,6 +238,9 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
         enum ieee80211_band band;
         int i, ielen, n_chans;
 
+        if (test_bit(SCAN_HW_CANCELLED, &local->scanning))
+                return false;
+
         do {
                 if (local->hw_scan_band == IEEE80211_NUM_BANDS)
                         return false;
@@ -940,7 +943,23 @@ void ieee80211_scan_cancel(struct ieee80211_local *local)
         if (!local->scan_req)
                 goto out;
 
+        /*
+         * We have a scan running and the driver already reported completion,
+         * but the worker hasn't run yet or is stuck on the mutex - mark it as
+         * cancelled.
+         */
+        if (test_bit(SCAN_HW_SCANNING, &local->scanning) &&
+            test_bit(SCAN_COMPLETED, &local->scanning)) {
+                set_bit(SCAN_HW_CANCELLED, &local->scanning);
+                goto out;
+        }
+
         if (test_bit(SCAN_HW_SCANNING, &local->scanning)) {
+                /*
+                 * Make sure that __ieee80211_scan_completed doesn't trigger a
+                 * scan on another band.
+                 */
+                set_bit(SCAN_HW_CANCELLED, &local->scanning);
                 if (local->ops->cancel_hw_scan)
                         drv_cancel_hw_scan(local,
                                 rcu_dereference_protected(local->scan_sdata,
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 368837fe3b80..78dc2e99027e 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -180,6 +180,9 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
         struct ieee80211_local *local = sta->local;
         struct ieee80211_sub_if_data *sdata = sta->sdata;
 
+        if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+                sta->last_rx = jiffies;
+
         if (ieee80211_is_data_qos(mgmt->frame_control)) {
                 struct ieee80211_hdr *hdr = (void *) skb->data;
                 u8 *qc = ieee80211_get_qos_ctl(hdr);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3456c0486b48..70b5a05c0a4e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1120,7 +1120,8 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
                 tx->sta = rcu_dereference(sdata->u.vlan.sta);
                 if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
                         return TX_DROP;
-        } else if (info->flags & IEEE80211_TX_CTL_INJECTED ||
+        } else if (info->flags & (IEEE80211_TX_CTL_INJECTED |
+                                  IEEE80211_TX_INTFL_NL80211_FRAME_TX) ||
                    tx->sdata->control_port_protocol == tx->skb->protocol) {
                 tx->sta = sta_info_get_bss(sdata, hdr->addr1);
         }
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e1b34a18b243..69e4ef5348a0 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2103,7 +2103,7 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
 {
         struct ieee80211_local *local = sdata->local;
         struct ieee80211_supported_band *sband;
-        int rate, skip, shift;
+        int rate, shift;
         u8 i, exrates, *pos;
         u32 basic_rates = sdata->vif.bss_conf.basic_rates;
         u32 rate_flags;
@@ -2131,14 +2131,11 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
                 pos = skb_put(skb, exrates + 2);
                 *pos++ = WLAN_EID_EXT_SUPP_RATES;
                 *pos++ = exrates;
-                skip = 0;
                 for (i = 8; i < sband->n_bitrates; i++) {
                         u8 basic = 0;
                         if ((rate_flags & sband->bitrates[i].flags)
                             != rate_flags)
                                 continue;
-                        if (skip++ < 8)
-                                continue;
                         if (need_basic && basic_rates & BIT(i))
                                 basic = 0x80;
                         rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
@@ -2241,6 +2238,10 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
         }
 
         rate = cfg80211_calculate_bitrate(&ri);
+        if (WARN_ONCE(!rate,
+                      "Invalid bitrate: flags=0x%x, idx=%d, vht_nss=%d\n",
+                      status->flag, status->rate_idx, status->vht_nss))
+                return 0;
 
         /* rewind from end of MPDU */
         if (status->flag & RX_FLAG_MACTIME_END)
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index bdebd03bc8cd..70866d192efc 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -778,8 +778,8 @@ static int callforward_do_filter(const union nf_inet_addr *src,
                                    flowi6_to_flowi(&fl1), false)) {
                         if (!afinfo->route(&init_net, (struct dst_entry **)&rt2,
                                            flowi6_to_flowi(&fl2), false)) {
-                                if (!memcmp(&rt1->rt6i_gateway, &rt2->rt6i_gateway,
-                                            sizeof(rt1->rt6i_gateway)) &&
+                                if (ipv6_addr_equal(rt6_nexthop(rt1),
+                                                    rt6_nexthop(rt2)) &&
                                     rt1->dst.dev == rt2->dst.dev)
                                         ret = 1;
                                 dst_release(&rt2->dst);
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index a2fef8b10b96..a9dfdda9ed1d 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -472,20 +472,16 @@ begin:
         if (f->credit > 0 || !q->rate_enable)
                 goto out;
 
-        if (skb->sk && skb->sk->sk_state != TCP_TIME_WAIT) {
-                rate = skb->sk->sk_pacing_rate ?: q->flow_default_rate;
+        rate = q->flow_max_rate;
+        if (skb->sk && skb->sk->sk_state != TCP_TIME_WAIT)
+                rate = min(skb->sk->sk_pacing_rate, rate);
 
-                rate = min(rate, q->flow_max_rate);
-        } else {
-                rate = q->flow_max_rate;
-                if (rate == ~0U)
-                        goto out;
-        }
-        if (rate) {
+        if (rate != ~0U) {
                 u32 plen = max(qdisc_pkt_len(skb), q->quantum);
                 u64 len = (u64)plen * NSEC_PER_SEC;
 
-                do_div(len, rate);
+                if (likely(rate))
+                        do_div(len, rate);
                 /* Since socket rate can change later,
                  * clamp the delay to 125 ms.
                  * TODO: maybe segment the too big skb, as in commit
@@ -656,7 +652,7 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
                 q->quantum = nla_get_u32(tb[TCA_FQ_QUANTUM]);
 
         if (tb[TCA_FQ_INITIAL_QUANTUM])
-                q->quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
+                q->initial_quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
 
         if (tb[TCA_FQ_FLOW_DEFAULT_RATE])
                 q->flow_default_rate = nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);
@@ -735,12 +731,14 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
         if (opts == NULL)
                 goto nla_put_failure;
 
+        /* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore,
+         * do not bother giving its value
+         */
         if (nla_put_u32(skb, TCA_FQ_PLIMIT, sch->limit) ||
             nla_put_u32(skb, TCA_FQ_FLOW_PLIMIT, q->flow_plimit) ||
             nla_put_u32(skb, TCA_FQ_QUANTUM, q->quantum) ||
             nla_put_u32(skb, TCA_FQ_INITIAL_QUANTUM, q->initial_quantum) ||
             nla_put_u32(skb, TCA_FQ_RATE_ENABLE, q->rate_enable) ||
-            nla_put_u32(skb, TCA_FQ_FLOW_DEFAULT_RATE, q->flow_default_rate) ||
             nla_put_u32(skb, TCA_FQ_FLOW_MAX_RATE, q->flow_max_rate) ||
             nla_put_u32(skb, TCA_FQ_BUCKETS_LOG, q->fq_trees_log))
                 goto nla_put_failure;
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index a6d788d45216..b87e83d07478 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -358,6 +358,21 @@ static psched_time_t packet_len_2_sched_time(unsigned int len, struct netem_sche
         return PSCHED_NS2TICKS(ticks);
 }
 
+static void tfifo_reset(struct Qdisc *sch)
+{
+        struct netem_sched_data *q = qdisc_priv(sch);
+        struct rb_node *p;
+
+        while ((p = rb_first(&q->t_root))) {
+                struct sk_buff *skb = netem_rb_to_skb(p);
+
+                rb_erase(p, &q->t_root);
+                skb->next = NULL;
+                skb->prev = NULL;
+                kfree_skb(skb);
+        }
+}
+
 static void tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
 {
         struct netem_sched_data *q = qdisc_priv(sch);
@@ -520,6 +535,7 @@ static unsigned int netem_drop(struct Qdisc *sch)
                         skb->next = NULL;
                         skb->prev = NULL;
                         len = qdisc_pkt_len(skb);
+                        sch->qstats.backlog -= len;
                         kfree_skb(skb);
                 }
         }
@@ -609,6 +625,7 @@ static void netem_reset(struct Qdisc *sch)
         struct netem_sched_data *q = qdisc_priv(sch);
 
         qdisc_reset_queue(sch);
+        tfifo_reset(sch);
         if (q->qdisc)
                 qdisc_reset(q->qdisc);
         qdisc_watchdog_cancel(&q->watchdog);
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 0ac3a65daccb..319137340d15 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -536,7 +536,8 @@ int sctp_packet_transmit(struct sctp_packet *packet)
          * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
          */
         if (!sctp_checksum_disable) {
-                if (!(dst->dev->features & NETIF_F_SCTP_CSUM)) {
+                if (!(dst->dev->features & NETIF_F_SCTP_CSUM) ||
+                    (dst_xfrm(dst) != NULL) || packet->ipfragok) {
                         __u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
 
                         /* 3) Put the resultant value into the checksum field in the
diff --git a/net/socket.c b/net/socket.c
index ebed4b68f768..c226aceee65b 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1964,6 +1964,16 @@ struct used_address {
         unsigned int name_len;
 };
 
+static int copy_msghdr_from_user(struct msghdr *kmsg,
+                                 struct msghdr __user *umsg)
+{
+        if (copy_from_user(kmsg, umsg, sizeof(struct msghdr)))
+                return -EFAULT;
+        if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
+                return -EINVAL;
+        return 0;
+}
+
 static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
                          struct msghdr *msg_sys, unsigned int flags,
                          struct used_address *used_address)
@@ -1982,8 +1992,11 @@ static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
         if (MSG_CMSG_COMPAT & flags) {
                 if (get_compat_msghdr(msg_sys, msg_compat))
                         return -EFAULT;
-        } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
-                return -EFAULT;
+        } else {
+                err = copy_msghdr_from_user(msg_sys, msg);
+                if (err)
+                        return err;
+        }
 
         if (msg_sys->msg_iovlen > UIO_FASTIOV) {
                 err = -EMSGSIZE;
@@ -2191,8 +2204,11 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
         if (MSG_CMSG_COMPAT & flags) {
                 if (get_compat_msghdr(msg_sys, msg_compat))
                         return -EFAULT;
-        } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
-                return -EFAULT;
+        } else {
+                err = copy_msghdr_from_user(msg_sys, msg);
+                if (err)
+                        return err;
+        }
 
         if (msg_sys->msg_iovlen > UIO_FASTIOV) {
                 err = -EMSGSIZE;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 86de99ad2976..c1f403bed683 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1246,6 +1246,15 @@ static int unix_socketpair(struct socket *socka, struct socket *sockb)
         return 0;
 }
 
+static void unix_sock_inherit_flags(const struct socket *old,
+                                    struct socket *new)
+{
+        if (test_bit(SOCK_PASSCRED, &old->flags))
+                set_bit(SOCK_PASSCRED, &new->flags);
+        if (test_bit(SOCK_PASSSEC, &old->flags))
+                set_bit(SOCK_PASSSEC, &new->flags);
+}
+
 static int unix_accept(struct socket *sock, struct socket *newsock, int flags)
 {
         struct sock *sk = sock->sk;
@@ -1280,6 +1289,7 @@ static int unix_accept(struct socket *sock, struct socket *newsock, int flags)
         /* attach accepted sock to socket */
         unix_state_lock(tsk);
         newsock->state = SS_CONNECTED;
+        unix_sock_inherit_flags(sock, newsock);
         sock_graft(tsk, newsock);
         unix_state_unlock(tsk);
         return 0;
diff --git a/net/unix/diag.c b/net/unix/diag.c
index d591091603bf..86fa0f3b2caf 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -124,6 +124,7 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
         rep->udiag_family = AF_UNIX;
         rep->udiag_type = sk->sk_type;
         rep->udiag_state = sk->sk_state;
+        rep->pad = 0;
         rep->udiag_ino = sk_ino;
         sock_diag_save_cookie(sk, rep->udiag_cookie);
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 67153964aad2..aff959e5a1b3 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -566,18 +566,13 @@ int wiphy_register(struct wiphy *wiphy)
         /* check and set up bitrates */
         ieee80211_set_bitrate_flags(wiphy);
 
-
+        rtnl_lock();
         res = device_add(&rdev->wiphy.dev);
-        if (res)
-                return res;
-
-        res = rfkill_register(rdev->rfkill);
         if (res) {
-                device_del(&rdev->wiphy.dev);
+                rtnl_unlock();
                 return res;
         }
 
-        rtnl_lock();
         /* set up regulatory info */
         wiphy_regulatory_register(wiphy);
 
@@ -606,6 +601,15 @@ int wiphy_register(struct wiphy *wiphy)
 
         rdev->wiphy.registered = true;
         rtnl_unlock();
+
+        res = rfkill_register(rdev->rfkill);
+        if (res) {
+                rfkill_destroy(rdev->rfkill);
+                rdev->rfkill = NULL;
+                wiphy_unregister(&rdev->wiphy);
+                return res;
+        }
+
         return 0;
 }
 EXPORT_SYMBOL(wiphy_register);
@@ -640,7 +644,8 @@ void wiphy_unregister(struct wiphy *wiphy)
                 rtnl_unlock();
                 __count == 0; }));
 
-        rfkill_unregister(rdev->rfkill);
+        if (rdev->rfkill)
+                rfkill_unregister(rdev->rfkill);
 
         rtnl_lock();
         rdev->wiphy.registered = false;
@@ -953,8 +958,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
         case NETDEV_PRE_UP:
                 if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
                         return notifier_from_errno(-EOPNOTSUPP);
-                if (rfkill_blocked(rdev->rfkill))
-                        return notifier_from_errno(-ERFKILL);
                 ret = cfg80211_can_add_interface(rdev, wdev->iftype);
                 if (ret)
                         return notifier_from_errno(ret);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 9ad43c619c54..3159e9c284c5 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -411,6 +411,9 @@ static inline int
 cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
                            enum nl80211_iftype iftype)
 {
+        if (rfkill_blocked(rdev->rfkill))
+                return -ERFKILL;
+
         return cfg80211_can_change_interface(rdev, NULL, iftype);
 }
 
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 39bff7d36768..403fe29c024d 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -263,6 +263,8 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
                                 if (chan->flags & IEEE80211_CHAN_DISABLED)
                                         continue;
                                 wdev->wext.ibss.chandef.chan = chan;
+                                wdev->wext.ibss.chandef.center_freq1 =
+                                        chan->center_freq;
                                 break;
                         }
 
@@ -347,6 +349,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
         if (chan) {
                 wdev->wext.ibss.chandef.chan = chan;
                 wdev->wext.ibss.chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+                wdev->wext.ibss.chandef.center_freq1 = freq;
                 wdev->wext.ibss.channel_fixed = true;
         } else {
                 /* cfg80211_ibss_wext_join will pick one if needed */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index af8d84a4a5b2..626dc3b5fd8d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2421,7 +2421,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
                 change = true;
         }
 
-        if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+        if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
             !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
                 return -EOPNOTSUPP;
 
@@ -2483,7 +2483,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
                                   info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
                                   &flags);
 
-        if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+        if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
             !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
                 return -EOPNOTSUPP;
 
diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c
index 7d604c06c3dc..a271c27fac77 100644
--- a/net/wireless/radiotap.c
+++ b/net/wireless/radiotap.c
@@ -97,6 +97,10 @@ int ieee80211_radiotap_iterator_init(
         struct ieee80211_radiotap_header *radiotap_header,
         int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns)
 {
+        /* check the radiotap header can actually be present */
+        if (max_length < sizeof(struct ieee80211_radiotap_header))
+                return -EINVAL;
+
         /* Linux only supports version 0 radiotap format */
         if (radiotap_header->it_version)
                 return -EINVAL;
@@ -131,7 +135,8 @@ int ieee80211_radiotap_iterator_init(
                          */
 
                         if ((unsigned long)iterator->_arg -
-                            (unsigned long)iterator->_rtheader >
+                            (unsigned long)iterator->_rtheader +
+                            sizeof(uint32_t) >
                             (unsigned long)iterator->_max_length)
                                 return -EINVAL;
                 }
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index ed38d5d81f9e..76e1873811d4 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -334,7 +334,8 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
 
         atomic_inc(&policy->genid);
 
-        del_timer(&policy->polq.hold_timer);
+        if (del_timer(&policy->polq.hold_timer))
+                xfrm_pol_put(policy);
         xfrm_queue_purge(&policy->polq.hold_queue);
 
         if (del_timer(&policy->timer))
@@ -589,7 +590,8 @@ static void xfrm_policy_requeue(struct xfrm_policy *old,
 
         spin_lock_bh(&pq->hold_queue.lock);
         skb_queue_splice_init(&pq->hold_queue, &list);
-        del_timer(&pq->hold_timer);
+        if (del_timer(&pq->hold_timer))
+                xfrm_pol_put(old);
         spin_unlock_bh(&pq->hold_queue.lock);
 
         if (skb_queue_empty(&list))
@@ -600,7 +602,8 @@ static void xfrm_policy_requeue(struct xfrm_policy *old,
         spin_lock_bh(&pq->hold_queue.lock);
         skb_queue_splice(&list, &pq->hold_queue);
         pq->timeout = XFRM_QUEUE_TMO_MIN;
-        mod_timer(&pq->hold_timer, jiffies);
+        if (!mod_timer(&pq->hold_timer, jiffies))
+                xfrm_pol_hold(new);
         spin_unlock_bh(&pq->hold_queue.lock);
 }
 
@@ -1769,6 +1772,10 @@ static void xfrm_policy_queue_process(unsigned long arg)
 
         spin_lock(&pq->hold_queue.lock);
         skb = skb_peek(&pq->hold_queue);
+        if (!skb) {
+                spin_unlock(&pq->hold_queue.lock);
+                goto out;
+        }
         dst = skb_dst(skb);
         sk = skb->sk;
         xfrm_decode_session(skb, &fl, dst->ops->family);
@@ -1787,8 +1794,9 @@ static void xfrm_policy_queue_process(unsigned long arg)
                         goto purge_queue;
 
                 pq->timeout = pq->timeout << 1;
-                mod_timer(&pq->hold_timer, jiffies + pq->timeout);
-                return;
+                if (!mod_timer(&pq->hold_timer, jiffies + pq->timeout))
+                        xfrm_pol_hold(pol);
+        goto out;
         }
 
         dst_release(dst);
@@ -1819,11 +1827,14 @@ static void xfrm_policy_queue_process(unsigned long arg)
                 err = dst_output(skb);
         }
 
+out:
+        xfrm_pol_put(pol);
         return;
 
 purge_queue:
         pq->timeout = 0;
         xfrm_queue_purge(&pq->hold_queue);
+        xfrm_pol_put(pol);
 }
 
 static int xdst_queue_output(struct sk_buff *skb)
@@ -1831,7 +1842,8 @@ static int xdst_queue_output(struct sk_buff *skb)
         unsigned long sched_next;
         struct dst_entry *dst = skb_dst(skb);
         struct xfrm_dst *xdst = (struct xfrm_dst *) dst;
-        struct xfrm_policy_queue *pq = &xdst->pols[0]->polq;
+        struct xfrm_policy *pol = xdst->pols[0];
+        struct xfrm_policy_queue *pq = &pol->polq;
 
         if (pq->hold_queue.qlen > XFRM_MAX_QUEUE_LEN) {
                 kfree_skb(skb);
@@ -1850,10 +1862,12 @@ static int xdst_queue_output(struct sk_buff *skb)
         if (del_timer(&pq->hold_timer)) {
                 if (time_before(pq->hold_timer.expires, sched_next))
                         sched_next = pq->hold_timer.expires;
+                xfrm_pol_put(pol);
         }
 
         __skb_queue_tail(&pq->hold_queue, skb);
-        mod_timer(&pq->hold_timer, sched_next);
+        if (!mod_timer(&pq->hold_timer, sched_next))
+                xfrm_pol_hold(pol);
 
         spin_unlock_bh(&pq->hold_queue.lock);
 
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 8dafe6d3c6e4..dab57daae408 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -61,9 +61,9 @@ static void xfrm_replay_notify(struct xfrm_state *x, int event)
 
         switch (event) {
         case XFRM_REPLAY_UPDATE:
-                if (x->replay_maxdiff &&
-                    (x->replay.seq - x->preplay.seq < x->replay_maxdiff) &&
-                    (x->replay.oseq - x->preplay.oseq < x->replay_maxdiff)) {
+                if (!x->replay_maxdiff ||
+                    ((x->replay.seq - x->preplay.seq < x->replay_maxdiff) &&
+                    (x->replay.oseq - x->preplay.oseq < x->replay_maxdiff))) {
                         if (x->xflags & XFRM_TIME_DEFER)
                                 event = XFRM_REPLAY_TIMEOUT;
                         else
@@ -129,8 +129,7 @@ static int xfrm_replay_check(struct xfrm_state *x,
                 return 0;
 
         diff = x->replay.seq - seq;
-        if (diff >= min_t(unsigned int, x->props.replay_window,
-                          sizeof(x->replay.bitmap) * 8)) {
+        if (diff >= x->props.replay_window) {
                 x->stats.replay_window++;
                 goto err;
         }
@@ -302,9 +301,10 @@ static void xfrm_replay_notify_bmp(struct xfrm_state *x, int event)
 
         switch (event) {
         case XFRM_REPLAY_UPDATE:
-                if (x->replay_maxdiff &&
-                    (replay_esn->seq - preplay_esn->seq < x->replay_maxdiff) &&
-                    (replay_esn->oseq - preplay_esn->oseq < x->replay_maxdiff)) {
+                if (!x->replay_maxdiff ||
+                    ((replay_esn->seq - preplay_esn->seq < x->replay_maxdiff) &&
+                    (replay_esn->oseq - preplay_esn->oseq
+                     < x->replay_maxdiff))) {
                         if (x->xflags & XFRM_TIME_DEFER)
                                 event = XFRM_REPLAY_TIMEOUT;
                         else
@@ -353,28 +353,30 @@ static void xfrm_replay_notify_esn(struct xfrm_state *x, int event)
 
         switch (event) {
         case XFRM_REPLAY_UPDATE:
-                if (!x->replay_maxdiff)
-                        break;
-
-                if (replay_esn->seq_hi == preplay_esn->seq_hi)
-                        seq_diff = replay_esn->seq - preplay_esn->seq;
-                else
-                        seq_diff = ~preplay_esn->seq + replay_esn->seq + 1;
-
-                if (replay_esn->oseq_hi == preplay_esn->oseq_hi)
-                        oseq_diff = replay_esn->oseq - preplay_esn->oseq;
-                else
-                        oseq_diff = ~preplay_esn->oseq + replay_esn->oseq + 1;
-
-                if (seq_diff < x->replay_maxdiff &&
-                    oseq_diff < x->replay_maxdiff) {
+                if (x->replay_maxdiff) {
+                        if (replay_esn->seq_hi == preplay_esn->seq_hi)
+                                seq_diff = replay_esn->seq - preplay_esn->seq;
+                        else
+                                seq_diff = ~preplay_esn->seq + replay_esn->seq
+                                           + 1;
 
-                        if (x->xflags & XFRM_TIME_DEFER)
-                                event = XFRM_REPLAY_TIMEOUT;
+                        if (replay_esn->oseq_hi == preplay_esn->oseq_hi)
+                                oseq_diff = replay_esn->oseq
+                                            - preplay_esn->oseq;
                         else
-                                return;
+                                oseq_diff = ~preplay_esn->oseq
+                                            + replay_esn->oseq + 1;
+
+                        if (seq_diff >= x->replay_maxdiff ||
+                            oseq_diff >= x->replay_maxdiff)
+                                break;
                 }
 
+                if (x->xflags & XFRM_TIME_DEFER)
+                        event = XFRM_REPLAY_TIMEOUT;
+                else
+                        return;
+
                 break;
 
         case XFRM_REPLAY_TIMEOUT:
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 3f565e495ac6..f964d4c00ffb 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -446,7 +446,8 @@ static void copy_from_user_state(struct xfrm_state *x, struct xfrm_usersa_info *
         memcpy(&x->sel, &p->sel, sizeof(x->sel));
         memcpy(&x->lft, &p->lft, sizeof(x->lft));
         x->props.mode = p->mode;
-        x->props.replay_window = p->replay_window;
+        x->props.replay_window = min_t(unsigned int, p->replay_window,
+                                        sizeof(x->replay.bitmap) * 8);
         x->props.reqid = p->reqid;
         x->props.family = p->family;
         memcpy(&x->props.saddr, &p->saddr, sizeof(x->props.saddr));
@@ -1856,7 +1857,7 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
         if (x->km.state != XFRM_STATE_VALID)
                 goto out;
 
-        err = xfrm_replay_verify_len(x->replay_esn, rp);
+        err = xfrm_replay_verify_len(x->replay_esn, re);
         if (err)
                 goto out;