From: Eric W. Biederman <ebiederm@xmission.com>
Date: Mon, 2 Mar 2015 05:59:57 +0000 (-0600)
Subject: ax25: In ax25_rebuild_header add missing kfree_skb
X-Git-Tag: v4.1-rc1~128^2~371^2~14
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e18dbd059319ac8d3fc0a0a23f6a8abcb9a59a31;p=platform%2Fkernel%2Flinux-exynos.git

ax25: In ax25_rebuild_header add missing kfree_skb

In the unlikely (impossible?) event that we attempt to transmit
an ax25 packet over a non-ax25 device free the skb so we don't
leak it.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-hams@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index 67de6b3..db3c283 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -129,6 +129,7 @@ int ax25_rebuild_header(struct sk_buff *skb)
 		dev = skb->dev;
 
 	if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL) {
+		kfree_skb(skb);
 		goto put;
 	}