Commit a7d35f9d authored Jul 09, 2015 by Eric Dumazet Committed by David S. Miller Jul 09, 2015

bridge: fix potential crash in __netdev_pick_tx()



Commit c29390c6 ("xps: must clear sender_cpu before forwarding")
fixed an issue in normal forward path, caused by sender_cpu & napi_id
skb fields being an union.

Bridge is another point where skb can be forwarded, so we need
the same cure.

Bug triggers if packet was received on a NIC using skb_mark_napi_id()

Fixes: 2bd82484 ("xps: fix xps for stacked devices")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Bob Liu <bob.liu@oracle.com>
Tested-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent fcc028c1

net/bridge/br_forward.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@ int br_dev_queue_push_xmit(struct sock sk, struct sk_buff skb)
		} else {
		skb_push(skb, ETH_HLEN);
		br_drop_fake_rtable(skb);
		skb_sender_cpu_clear(skb);
		dev_queue_xmit(skb);
		}