linux-kernel - [PATCH 3.2 101/102] ipvs: avoid netns exit crash on ip_vs_conn_drop

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Message-ID: <lsq.1414880883.442457000@decadent.org.uk>
Date:	Sat, 01 Nov 2014 22:28:03 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Simon Horman" <horms@...ge.net.au>,
	"Hans Schillstrom" <hans@...illstrom.com>,
	"Julian Anastasov" <ja@....bg>
Subject: [PATCH 3.2 101/102] ipvs: avoid netns exit crash on
 ip_vs_conn_drop_conntrack

3.2.64-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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

commit 2627b7e15c5064ddd5e578e4efd948d48d531a3f upstream.

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.

Signed-off-by: Julian Anastasov <ja@....bg>
Signed-off-by: Hans Schillstrom <hans@...illstrom.com>
Signed-off-by: Simon Horman <horms@...ge.net.au>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 net/netfilter/ipvs/ip_vs_conn.c |    1 -
 1 file changed, 1 deletion(-)

--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -777,7 +777,6 @@ static void ip_vs_conn_expire(unsigned l
 			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.

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