bridge: fix potential crash in __netdev_pick_tx()
commitaf9f8e1f82574c2eb91377aa93db0a1297e92c0b
authorEric Dumazet <edumazet@google.com>
Thu, 9 Jul 2015 16:56:07 +0000 (9 18:56 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 29 Sep 2015 17:26:21 +0000 (29 19:26 +0200)
tree5741f08e210eef26f76ad1611fd751122a3658d6
parentfd08e0ccaa649064ca0df99eaadb58199be41970
bridge: fix potential crash in __netdev_pick_tx()

[ Upstream commit a7d35f9d73e9ffa74a02304b817e579eec632f67 ]

Commit c29390c6dfee ("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: 2bd82484bb4c ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/bridge/br_forward.c