From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: sasha.levin@oracle.com, Florian Westphal <fw@strlen.de>
Subject: [PATCH nf] netfilter: cttimeout: fix deadlock due to erroneous unlock/lock conversion
Date: Thu, 28 Jan 2016 13:16:59 +0100 [thread overview]
Message-ID: <1453983419-28688-1-git-send-email-fw@strlen.de> (raw)
The spin_unlock call should have been left as-is, revert.
Fixes: b16c29191dc89bd ("netfilter: nf_conntrack: use safer way to lock all buckets")
Reported-by: kernel test robot <fengguang.wu@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
net/netfilter/nfnetlink_cttimeout.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 94837d2..2671b9d 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -312,7 +312,7 @@ static void ctnl_untimeout(struct net *net, struct ctnl_timeout *timeout)
hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
untimeout(h, timeout);
}
- nf_conntrack_lock(&nf_conntrack_locks[i % CONNTRACK_LOCKS]);
+ spin_unlock(&nf_conntrack_locks[i % CONNTRACK_LOCKS]);
}
local_bh_enable();
}
--
2.4.10
next reply other threads:[~2016-01-28 12:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 12:16 Florian Westphal [this message]
2016-02-01 17:39 ` [PATCH nf] netfilter: cttimeout: fix deadlock due to erroneous unlock/lock conversion Pablo Neira Ayuso
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