2.6.32-longterm review patch. If anyone has any objections, please let me know. ------------------ From: =?latin1?q?Sebastian=20P=F6hn?= <sebastian.poehn@xxxxxxxxx> [ Upstream commit 2ab957492d13bb819400ac29ae55911d50a82a13 ] Initial discussion was: [FYI] xfrm: Don't lookup sk_policy for timewait sockets Forwarded frames should not have a socket attached. Especially tw sockets will lead to panics later-on in the stack. This was observed with TPROXY assigning a tw socket and broken policy routing (misconfigured). As a result frame enters forwarding path instead of input. We cannot solve this in TPROXY as it cannot know that policy routing is broken. v2: Remove useless comment Signed-off-by: Sebastian Poehn <sebastian.poehn@xxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> (cherry picked from commit fccb908d23fbae3e941e9294590dd94de6b1d822) Signed-off-by: Willy Tarreau <w@xxxxxx> --- net/ipv4/ip_forward.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c index a2991bc..6be434085 100644 --- a/net/ipv4/ip_forward.c +++ b/net/ipv4/ip_forward.c @@ -56,6 +56,9 @@ int ip_forward(struct sk_buff *skb) struct rtable *rt; /* Route we use */ struct ip_options * opt = &(IPCB(skb)->opt); + if (unlikely(skb->sk)) + goto drop; + if (skb_warn_if_lro(skb)) goto drop; -- 1.7.12.2.21.g234cd45.dirty -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html