12 files changed, 15 insertions, 3 deletions

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 3b8e038ab32c..9101a4e56201 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -20,6 +20,7 @@
 #include <linux/etherdevice.h>
 #include <linux/jhash.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <asm/atomic.h>
 #include <asm/unaligned.h>
 #include "br_private.h"
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 15abef7349f3..92fb3293a215 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/err.h>
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index b7cdd2e98050..521439333316 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/rtnetlink.h>
 #include <linux/if_ether.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 
 #include "br_private.h"
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index c9018fc72d24..d36e700f7a26 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -11,6 +11,7 @@
  *      2 of the License, or (at your option) any later version.
  */
 
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 2af6e4a90262..995afc4b04dc 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/if_bridge.h>
 #include <linux/netdevice.h>
+#include <linux/slab.h>
 #include <linux/times.h>
 #include <net/net_namespace.h>
 #include <asm/uaccess.h>
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index ed19b0a730ab..8ccdb8ee3928 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -723,7 +723,7 @@ static int br_multicast_igmp3_report(struct net_bridge *br,
                 if (!pskb_may_pull(skb, len))
                         return -EINVAL;
 
-                grec = (void *)(skb->data + len);
+                grec = (void *)(skb->data + len - sizeof(*grec));
                 group = grec->grec_mca;
                 type = grec->grec_type;
 
@@ -1003,8 +1003,6 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
         if (!pskb_may_pull(skb2, sizeof(*ih)))
                 goto out;
 
-        iph = ip_hdr(skb2);
-
         switch (skb2->ip_summed) {
         case CHECKSUM_COMPLETE:
                 if (!csum_fold(skb2->csum))
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index b7e405dc9d1c..6b80ebc37667 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -16,6 +16,7 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/ip.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index fcffb3fb1177..aa56ac2c8829 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <net/rtnetlink.h>
 #include <net/net_namespace.h>
 #include <net/sock.h>
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 763a3ec292e5..1413b72acc7f 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -82,6 +82,10 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
         case NETDEV_UNREGISTER:
                 br_del_if(br, dev);
                 break;
+
+        case NETDEV_PRE_TYPE_CHANGE:
+                /* Forbid underlaying device to change its type. */
+                return NOTIFY_BAD;
         }
 
         /* Events that may cause spanning tree to refresh */
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 11b0157f69c3..217bd225a42f 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -15,6 +15,7 @@
 #include <linux/netfilter_bridge.h>
 #include <linux/etherdevice.h>
 #include <linux/llc.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/llc.h>
 #include <net/llc_pdu.h>
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index f77b42d8e87d..852f37c27659 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -29,6 +29,7 @@
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/socket.h>
 #include <linux/skbuff.h>
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index c41f3fad0587..1d8c2c0a7470 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -22,6 +22,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/smp.h>
 #include <linux/cpumask.h>