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| author | Duan Jiong <duanj.fnst@cn.fujitsu.com> | 2014-01-23 10:00:25 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 23:22:20 +0400 |
| commit | 9cafae949e2126d396b745bf06626a08e803b282 (patch) | |
| tree | ffde7a2297e6fffc0b17adf40a21a15a81290481 /net | |
| parent | 121aef658bcfb1e8b273cabc8b55b274a1ac7a9c (diff) | |
| download | linux-9cafae949e2126d396b745bf06626a08e803b282.tar.xz | |
ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
[ Upstream commit 11c21a307d79ea5f6b6fc0d3dfdeda271e5e65f6 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -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 254f11c24aa5..995a0bb33a65 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -618,6 +618,7 @@ 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; |