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(parent: 3995d26) | patch
ip_tunnel:multicast process cause panic due to skb->_skb_refdst NULL pointer
authorXin Long <[email protected]>
Mon, 3 Mar 2014 12:18:36 +0000 (20:18 +0800)
committerDavid S. Miller <[email protected]>
Mon, 3 Mar 2014 20:56:40 +0000 (15:56 -0500)
commit10ddceb22bab11dab10ba645c7df2e4a8e7a5db5
tree44376ec17d4145e7eab45debff4ccbebb8b1760etree | snapshot
parent3995d265b3640fb7dc843a3c5f62ced4f121fb89commit | diff
ip_tunnel:multicast process cause panic due to skb->_skb_refdst NULL pointer

when ip_tunnel process multicast packets, it may check if the packet is looped
back packet though 'rt_is_output_route(skb_rtable(skb))' in ip_tunnel_rcv(),
but before that , skb->_skb_refdst has been dropped in iptunnel_pull_header(),
so which leads to a panic.

fix the bug: https://bugzilla.kernel.org/show_bug.cgi?id=70681

Signed-off-by: Xin Long <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
net/ipv4/ip_tunnel_core.c diff | blob | blame | history
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