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(parent: 19a8321) | patch
net: fix a race in sock_queue_err_skb()
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 6 Apr 2012 08:49:10 +0000 (10:49 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 27 Apr 2012 16:51:19 +0000 (09:51 -0700)
commit6d7946bd33e29b2659504ffb3b98aa9fdb2229d8
treecc3c057a993611462f6c491828b917c017fcf07atree | snapshot
parent19a8321ccebc1db80a75d32d0235f2beb646d8f7commit | diff
net: fix a race in sock_queue_err_skb()

[ Upstream commit 110c43304db6f06490961529536c362d9ac5732f ]

As soon as an skb is queued into socket error queue, another thread
can consume it, so we are not allowed to reference skb anymore, or risk
use after free.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/core/skbuff.c diff | blob | history
kernel
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