From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Denis V. Lunev" <den@sw.ru>
Subject: [PATCH 0/4 net-2.6.25] Proper netlink kernel sockets disposal.
Date: Fri, 18 Jan 2008 15:51:47 +0300
Message-ID: <4790A0E3.9080006@sw.ru>
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Return-path: <netdev-owner@vger.kernel.org>
Sender: netdev-owner@vger.kernel.org
To: David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>, Linux Containers <containers@lists.osdl.org>, devel@openvz.org
List-Id: containers.vger.kernel.org

Alexey Dobriyan found, that virtualized netlink kernel sockets (fibl &
rtnl) are leaked during namespace start/stop loop.

Leaking fix (simple and obvious) reveals that netlink kernel socket
disposal leads to OOPSes:
- nl_table[protocol]->listeners is double freed
- sometimes during namespace stop netlink_sock_destruct
  BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc)); is hit

This set address all these issues.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Tested-by: Alexey Dobriayn <adobriyan@openvz.org>