1 files changed, 6 insertions, 2 deletions

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 075c435ad22d..cf09fe591fc2 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -22,7 +22,7 @@
 #include <asm/uaccess.h>
 #include "br_private.h"
 
-/* net device transmit always called with no BH (preempt_disabled) */
+/* net device transmit always called with BH disabled */
 netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct net_bridge *br = netdev_priv(dev);
@@ -48,13 +48,16 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
         skb_reset_mac_header(skb);
         skb_pull(skb, ETH_HLEN);
 
+        rcu_read_lock();
         if (is_multicast_ether_addr(dest)) {
                 if (unlikely(netpoll_tx_running(dev))) {
                         br_flood_deliver(br, skb);
                         goto out;
                 }
-                if (br_multicast_rcv(br, NULL, skb))
+                if (br_multicast_rcv(br, NULL, skb)) {
+                        kfree_skb(skb);
                         goto out;
+                }
 
                 mdst = br_mdb_get(br, skb);
                 if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb))
@@ -67,6 +70,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
                 br_flood_deliver(br, skb);
 
 out:
+        rcu_read_unlock();
         return NETDEV_TX_OK;
 }