From patchwork Thu Oct 1 23:16:41 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [8/9] netfilter: bridge: refcount fix Date: Thu, 01 Oct 2009 13:16:41 -0000 From: gregkh@suse.de X-Patchwork-Id: 34789 Message-Id: <20091001231805.637821425@mini.kroah.org> To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, Patrick McHardy , davem@davemloft.net, Eric Dumazet 2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Patrick McHardy netfilter: bridge: refcount fix Upstream commit f3abc9b9: 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 Signed-off-by: Patrick McHardy Signed-off-by: Greg Kroah-Hartman --- net/bridge/br_netfilter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -358,7 +358,7 @@ static int br_nf_pre_routing_finish(stru }, .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