[Devel] [PATCH] [NETNS 2/4 net-2.6.25] Memory leak on network namespace stop.

[Denis V. Lunev]

Network namespace allocates 2 kernel netlink sockets, fibnl & rtnl. These
sockets should be disposed properly, i.e. by sock_release. Plain sock_put
is not enough.

Signed-off-by: Denis V. Lunev <den at openvz.org>
Tested-by: Alexey Dobriyan <adobriyan at openvz.org>
---
 net/core/rtnetlink.c    |    2 +-
 net/ipv4/fib_frontend.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4a07e83..2c1f665 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1381,7 +1381,7 @@ static void rtnetlink_net_exit(struct net *net)
 		 * free.
 		 */
 		sk->sk_net = get_net(&init_net);
-		sock_put(sk);
+		sock_release(net->rtnl->sk_socket);
 		net->rtnl = NULL;
 	}
 }
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 8ddcd3f..4e5216e 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -881,7 +881,7 @@ static void nl_fib_lookup_exit(struct net *net)
 	 * initial network namespace. So the socket will  be safe to free.
 	 */
 	net->ipv4.fibnl->sk_net = get_net(&init_net);
-	sock_put(net->ipv4.fibnl);
+	sock_release(net->ipv4.fibnl->sk_socket);
 }
 
 static void fib_disable_ip(struct net_device *dev, int force)
-- 
1.5.3.rc5