netdev - Re: [PATCH] tcp: cookie transactions setsockopt memory leak

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Date:	Fri, 30 Jul 2010 23:05:24 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dp@...hloadlab.com
Cc:	kuznet@....inr.ac.ru, jmorris@...ei.org, kaber@...sh.net,
	pekkas@...core.fi, yoshfuji@...ux-ipv6.org, eric.dumazet@...il.com,
	ilpo.jarvinen@...sinki.fi, akpm@...ux-foundation.org,
	steve@...idescorp.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, william.allen.simpson@...il.com
Subject: Re: [PATCH] tcp: cookie transactions setsockopt memory leak

From: Dmitry Popov <dp@...hloadlab.com>
Date: Thu, 29 Jul 2010 15:59:36 +0400

> From: Dmitry Popov <dp@...hloadlab.com>
> 
> There is a bug in do_tcp_setsockopt(net/ipv4/tcp.c),
> TCP_COOKIE_TRANSACTIONS case.
> In some cases (when tp->cookie_values == NULL) new tcp_cookie_values
> structure can be allocated (at cvp), but not bound to
> tp->cookie_values. So a memory leak occurs.
> 
> Signed-off-by: Dmitry Popov <dp@...hloadlab.com>

Applied and queued up for -stable, thanks Dmitry.
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