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authorPatrick McHardy <kaber@trash.net>2007-03-29 22:46:52 +0400
committerDavid S. Miller <davem@davemloft.net>2007-03-29 22:46:52 +0400
commitc01003c20563d1e75ec9828d21743919d2b43977 (patch)
tree21cae8933e8a4908d8e8c24244a627bf0c997e77 /net/sched/act_mirred.c
parentdb8b22550d4b83f0910d27a34d05aa16f7f7159f (diff)
downloadlinux-c01003c20563d1e75ec9828d21743919d2b43977.tar.xz
[IFB]: Fix crash on input device removal
The input_device pointer is not refcounted, which means the device may disappear while packets are queued, causing a crash when ifb passes packets with a stale skb->dev pointer to netif_rx(). Fix by storing the interface index instead and do a lookup where neccessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_mirred.c')
-rw-r--r--net/sched/act_mirred.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 68f26cb278f9..3e93683e9ab3 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -198,7 +198,7 @@ bad_mirred:
skb2->tc_verd = SET_TC_FROM(skb2->tc_verd, at);
skb2->dev = dev;
- skb2->input_dev = skb->dev;
+ skb2->iif = skb->dev->ifindex;
dev_queue_xmit(skb2);
spin_unlock(&m->tcf_lock);
return m->tcf_action;