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(parent: 20dd622) | patch
ip_tunnel: Do not use stale inner_iph pointer.
authorPravin B Shelar <pshelar@nicira.com>
Wed, 25 Sep 2013 16:57:47 +0000 (09:57 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 30 Sep 2013 19:05:07 +0000 (15:05 -0400)
commita25fcfddb12fbec6b9895fde5bfc022eb58fc147
treeef6a48cbbda948c321542dc13e66686a21998b00tree | snapshot
parent20dd62220e60a7a4a15a566896cc067c28ed97f2commit | diff
ip_tunnel: Do not use stale inner_iph pointer.

While sending packet skb_cow_head() can change skb header which
invalidates inner_iph pointer to skb header. Following patch
avoid using it. Found by code inspection.

This bug was introduced by commit 9806173387ee38 (ip_tunnels: extend
iptunnel_xmit()).

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_tunnel.c diff | blob | history
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