From b0270e91014dabfceaf37f5b40ad51bbf21a1302 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 15 Apr 2014 12:58:34 -0400 Subject: ipv4: add a sock pointer to ip_queue_xmit() ip_queue_xmit() assumes the skb it has to transmit is attached to an inet socket. Commit 31c70d5956fc ("l2tp: keep original skb ownership") changed l2tp to not change skb ownership and thus broke this assumption. One fix is to add a new 'struct sock *sk' parameter to ip_queue_xmit(), so that we do not assume skb->sk points to the socket used by l2tp tunnel. Fixes: 31c70d5956fc ("l2tp: keep original skb ownership") Reported-by: Zhan Jianyu Tested-by: Zhan Jianyu Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/l2tp/l2tp_ip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/l2tp/l2tp_ip.c') diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 0b44d855269c..3397fe6897c0 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -487,7 +487,7 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m xmit: /* Queue the packet to IP for output */ - rc = ip_queue_xmit(skb, &inet->cork.fl); + rc = ip_queue_xmit(sk, skb, &inet->cork.fl); rcu_read_unlock(); error: -- cgit v1.2.3