From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 24 Aug 2009 17:35:38 +0000 (+0200)
Subject: netfilter: bridge: refcount fix
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f3abc9b963e004b8c96cd7fbee6fd905f2bfd620;p=linux-beck.git

netfilter: bridge: refcount fix

commit f216f082b2b37c4943f1e7c393e2786648d48f6f
([NETFILTER]: bridge netfilter: deal with martians correctly)
added a refcount leak on in_dev.

Instead of using in_dev_get(), we can use __in_dev_get_rcu(),
as netfilter hooks are running under rcu_read_lock(), as pointed
by Patrick.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 4fde7425077d..907a82e9023d 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -359,7 +359,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
 				},
 				.proto = 0,
 			};
-			struct in_device *in_dev = in_dev_get(dev);
+			struct in_device *in_dev = __in_dev_get_rcu(dev);
 
 			/* If err equals -EHOSTUNREACH the error is due to a
 			 * martian destination or due to the fact that