linux-kernel - [PATCH 3.13 070/172] batman-adv: free skb on TVLV parsing success

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Date:	Tue,  4 Mar 2014 12:02:34 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Russel Senior <russell@...sonaltelco.net>,
	Antonio Quartulli <antonio@...n-mesh.com>,
	Marek Lindner <mareklindner@...mailbox.ch>
Subject: [PATCH 3.13 070/172] batman-adv: free skb on TVLV parsing success

3.13-stable review patch.  If anyone has any objections, please let me know.

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

From: Antonio Quartulli <antonio@...n-mesh.com>

[ Upstream commit 05c3c8a636aa9ee35ce13f65afc5b665615cc786 ]

When the TVLV parsing routine succeed the skb is left
untouched thus leading to a memory leak.

Fix this by consuming the skb in case of success.

Introduced by ef26157747d42254453f6b3ac2bd8bd3c53339c3
("batman-adv: tvlv - basic infrastructure")

Reported-by: Russel Senior <russell@...sonaltelco.net>
Signed-off-by: Antonio Quartulli <antonio@...n-mesh.com>
Tested-by: Russell Senior <russell@...sonaltelco.net>
Signed-off-by: Marek Lindner <mareklindner@...mailbox.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/batman-adv/routing.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1063,6 +1063,8 @@ int batadv_recv_unicast_tvlv(struct sk_b
 
 	if (ret != NET_RX_SUCCESS)
 		ret = batadv_route_unicast_packet(skb, recv_if);
+	else
+		consume_skb(skb);
 
 	return ret;
 }


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