netdev - [PATCH 1/6 -stable] ipvs: avoid netns exit crash on ip_vs_conn_drop

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Message-Id: <1411731824-15051-2-git-send-email-pablo@netfilter.org>
Date:	Fri, 26 Sep 2014 13:43:39 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	netfilter-devel@...r.kernel.org
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 1/6 -stable] ipvs: avoid netns exit crash on ip_vs_conn_drop_conntrack

From: Julian Anastasov <ja@....bg>

[ upstream commit 2627b7e15c5064ddd5e578e4efd948d48d531a3f ]

commit 8f4e0a18682d91 ("IPVS netns exit causes crash in conntrack")
added second ip_vs_conn_drop_conntrack call instead of just adding
the needed check. As result, the first call still can cause
crash on netns exit. Remove it.

Cc: <stable@...r.kernel.org> # 3.14.x
Cc: <stable@...r.kernel.org> # 3.12.x
Cc: <stable@...r.kernel.org> # 3.10.x
Cc: <stable@...r.kernel.org> # 3.4.x
Cc: <stable@...r.kernel.org> # 3.2.x
Signed-off-by: Julian Anastasov <ja@....bg>
Signed-off-by: Hans Schillstrom <hans@...illstrom.com>
Signed-off-by: Simon Horman <horms@...ge.net.au>
---
 net/netfilter/ipvs/ip_vs_conn.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index a8eb0a8..610e19c 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -797,7 +797,6 @@ static void ip_vs_conn_expire(unsigned long data)
 			ip_vs_control_del(cp);
 
 		if (cp->flags & IP_VS_CONN_F_NFCT) {
-			ip_vs_conn_drop_conntrack(cp);
 			/* Do not access conntracks during subsys cleanup
 			 * because nf_conntrack_find_get can not be used after
 			 * conntrack cleanup for the net.
-- 
1.7.10.4

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