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net: Potential null skb->dev dereference
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 19 Mar 2010 04:16:45 +0000 (21:16 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 19 Mar 2010 04:16:45 +0000 (21:16 -0700)
commit745d2a2973b7ce3ee6231fe66dbf922e07fdae05
tree54fdd8bc2e3a928ff0f7621c06e1e604eaf0529ctree | snapshot
parentdfa33b1ef5b4d25ccf55225ee0df3b38c0b9e86dcommit | diff
net: Potential null skb->dev dereference

When doing "ifenslave -d bond0 eth0", there is chance to get NULL
dereference in netif_receive_skb(), because dev->master suddenly becomes
NULL after we tested it.

We should use ACCESS_ONCE() to avoid this (or rcu_dereference())

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/netdevice.h diff | blob | history
net/8021q/vlan_core.c diff | blob | history
net/core/dev.c diff | blob | history
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