From: Changli Gao <xiaosuo@gmail.com>
Date: Sun, 22 Aug 2010 19:03:26 +0000 (+0000)
Subject: bridge: netfilter: fix a memory leak
X-Git-Tag: firefly_0821_release~9833^2~400^2~129
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4c3a76abd379d9a4668b2d417baa991de9757dc2;p=firefly-linux-kernel-4.4.55.git

bridge: netfilter: fix a memory leak

nf_bridge_alloc() always reset the skb->nf_bridge, so we should always
put the old one.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Bart De Schuymer <bdschuym@pandora.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 2c911c0759c2..5ed00bd7009f 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -162,8 +162,8 @@ static inline struct nf_bridge_info *nf_bridge_unshare(struct sk_buff *skb)
 		if (tmp) {
 			memcpy(tmp, nf_bridge, sizeof(struct nf_bridge_info));
 			atomic_set(&tmp->use, 1);
-			nf_bridge_put(nf_bridge);
 		}
+		nf_bridge_put(nf_bridge);
 		nf_bridge = tmp;
 	}
 	return nf_bridge;