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| author | Duan Jiong <duanj.fnst@cn.fujitsu.com> | 2014-01-23 10:00:25 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-24 01:23:16 +0400 |
| commit | 11c21a307d79ea5f6b6fc0d3dfdeda271e5e65f6 (patch) | |
| tree | 24774ad28953a025f11d9f1d617d46f2eb9ac937 /net/ipv4 | |
| parent | 9fe6cb58378c3b8535e00dab7195b5d35defa17a (diff) | |
| download | linux-11c21a307d79ea5f6b6fc0d3dfdeda271e5e65f6.tar.xz | |
ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
commit a622260254ee48("ip_tunnel: fix kernel panic with icmp_dest_unreach")
clear IPCB in ip_tunnel_xmit() , or else skb->cb[] may contain garbage from
GSO segmentation layer.
But commit 0e6fbc5b6c621("ip_tunnels: extend iptunnel_xmit()") refactor codes,
and it clear IPCB behind the dst_link_failure().
So clear IPCB in ip_tunnel_xmit() just like commti a622260254ee48("ip_tunnel:
fix kernel panic with icmp_dest_unreach").
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_tunnel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 1886cd40a3f6..c0e3cb72ad70 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -686,6 +686,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, tunnel->err_time + IPTUNNEL_ERR_TIMEO)) { tunnel->err_count--; + memset(IPCB(skb), 0, sizeof(*IPCB(skb))); dst_link_failure(skb); } else tunnel->err_count = 0; |