linux-kernel - Re: [PATCH][netfilter] Avoid a possible NULL pointer deref in recent_seq

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Message-ID: <46ADD962.4040700@trash.net>
Date:	Mon, 30 Jul 2007 14:28:18 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Jesper Juhl <jesper.juhl@...il.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netfilter-devel@...ts.netfilter.org, coreteam@...filter.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Marc Boucher <marc@...i.ca>, James Morris <jmorris@...ei.org>,
	Harald Welte <laforge@...filter.org>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH][netfilter] Avoid a possible NULL pointer deref in recent_seq_open()

Jesper Juhl wrote:
> There is a small problem in
>  net/ipv4/netfilter/ipt_recent.c::recent_seq_open().
> 
> If the call to seq_open() returns != 0 then the code calls 
> kfree(st) but then on the very next line proceeds to 
> dereference the pointer - not good.


Applied, thanks Jesper.

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