linux-kernel - [ 115/171] libceph: fix NULL dereference in reset

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Message-Id: <20121122004044.895759361@linuxfoundation.org>
Date:	Wed, 21 Nov 2012 16:41:01 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Dan Carpenter <dan.carpenter@...cle.com>,
	Alex Elder <elder@...tank.com>
Subject: [ 115/171] libceph: fix NULL dereference in reset_connection()

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

(cherry picked from commit 26ce171915f348abd1f41da1ed139d93750d987f)

We dereference "con->in_msg" on the line after it was set to NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Reviewed-by: Alex Elder <elder@...tank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ceph/messenger.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -440,7 +440,7 @@ static void reset_connection(struct ceph
 		con->in_msg->con = NULL;
 		ceph_msg_put(con->in_msg);
 		con->in_msg = NULL;
-		ceph_con_put(con->in_msg->con);
+		ceph_con_put(con);
 	}
 
 	con->connect_seq = 0;


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