From: Denis V. Lunev <den@openvz.org>
Date: Fri, 21 Dec 2007 10:01:53 +0000 (-0800)
Subject: [IPV4]: OOPS with NETLINK_FIB_LOOKUP netlink socket
X-Git-Tag: v2.6.24-rc7~54^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d883a0367149506e8b7a3f31891d1ea30b9377f3;p=pandora-kernel.git

[IPV4]: OOPS with NETLINK_FIB_LOOKUP netlink socket

[ Regression added by changeset:
	cd40b7d3983c708aabe3d3008ec64ffce56d33b0
	[NET]: make netlink user -> kernel interface synchronious
  -DaveM ]

nl_fib_input re-reuses incoming skb to send the reply. This means that this
packet will be freed twice, namely in:
- netlink_unicast_kernel
- on receive path
Use clone to send as a cure, the caller is responsible for kfree_skb on error.

Thanks to Alexey Dobryan, who originally found the problem.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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