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Message-Id: <1411731824-15051-5-git-send-email-pablo@netfilter.org>
Date:	Fri, 26 Sep 2014 13:43:42 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	netfilter-devel@...r.kernel.org
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 4/6 -stable] netfilter: x_tables: allow to use default cgroup match

From: Daniel Borkmann <dborkman@...hat.com>

[ upstream commit caa8ad94edf686d02b555c65a6162c0d1b434958 ]

There's actually no good reason why we cannot use cgroup id 0,
so lets just remove this artificial barrier.

Cc: <stable@...r.kernel.org> # 3.16.x
Cc: <stable@...r.kernel.org> # 3.14.x
Reported-by: Alexey Perevalov <a.perevalov@...sung.com>
Signed-off-by: Daniel Borkmann <dborkman@...hat.com>
Tested-by: Alexey Perevalov <a.perevalov@...sung.com>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/xt_cgroup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_cgroup.c b/net/netfilter/xt_cgroup.c
index f4e8330..7198d66 100644
--- a/net/netfilter/xt_cgroup.c
+++ b/net/netfilter/xt_cgroup.c
@@ -31,7 +31,7 @@ static int cgroup_mt_check(const struct xt_mtchk_param *par)
 	if (info->invert & ~1)
 		return -EINVAL;
 
-	return info->id ? 0 : -EINVAL;
+	return 0;
 }
 
 static bool
-- 
1.7.10.4

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