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| author | Pravin B Shelar <pshelar@nicira.com> | 2014-03-23 22:06:36 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-26 15:18:40 -0400 |
| commit | fbd02dd405d0724a0f25897ed4a6813297c9b96f (patch) | |
| tree | 4ebae2c7d156ffa99c1c6ec2d14a8061d0a7b742 /net/ipv4/ip_tunnel.c | |
| parent | 632b06aa2842b12c6d6a510ec080fb6ebdb38ea5 (diff) | |
| download | linux-fbd02dd405d0724a0f25897ed4a6813297c9b96f.tar.gz linux-fbd02dd405d0724a0f25897ed4a6813297c9b96f.tar.bz2 linux-fbd02dd405d0724a0f25897ed4a6813297c9b96f.zip | |
ip_tunnel: Fix dst ref-count.
Commit 10ddceb22ba (ip_tunnel:multicast process cause panic due
to skb->_skb_refdst NULL pointer) removed dst-drop call from
ip-tunnel-recv.
Following commit reintroduce dst-drop and fix the original bug by
checking loopback packet before releasing dst.
Original bug: https://bugzilla.kernel.org/show_bug.cgi?id=70681
CC: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_tunnel.c')
| -rw-r--r-- | net/ipv4/ip_tunnel.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 78a89e61925d..a82a22d8f77f 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -416,9 +416,6 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb, #ifdef CONFIG_NET_IPGRE_BROADCAST if (ipv4_is_multicast(iph->daddr)) { - /* Looped back packet, drop it! */ - if (rt_is_output_route(skb_rtable(skb))) - goto drop; tunnel->dev->stats.multicast++; skb->pkt_type = PACKET_BROADCAST; } |