netdev - [PATCH net-next 01/16] ipv4: Fix ip_local_out_sk by passing the sk into __ip_local_out

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Message-Id: <1444254527-17833-1-git-send-email-ebiederm@xmission.com>
Date:	Wed,  7 Oct 2015 16:48:32 -0500
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	David Miller <davem@...emloft.net>
Cc:	netfilter-devel@...r.kernel.org, <netdev@...r.kernel.org>,
	Nicolas Dichtel <nicolas.dichtel@...nd.com>,
	lvs-devel@...r.kernel.org
Subject: [PATCH net-next 01/16] ipv4: Fix ip_local_out_sk by passing the sk into __ip_local_out_sk

In the rare case where sk != skb->sk ip_local_out_sk arranges
to call dst->output differently if the skb is queued or not.
This is a bug.

Fix this bug by passing the sk parameter of ip_local_out_sk through
from ip_local_out_sk to __ip_local_out_sk (skipping __ip_local_out).

Fixes: 7026b1ddb6b8 ("netfilter: Pass socket pointer down through okfn().")
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 net/ipv4/ip_output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 911ea739049a..6cb585a05dd1 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -117,7 +117,7 @@ int ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
 {
 	int err;
 
-	err = __ip_local_out(skb);
+	err = __ip_local_out_sk(sk, skb);
 	if (likely(err == 1))
 		err = dst_output(sk, skb);
 
-- 
2.2.1

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