linux-kernel - Re: [patch 03/31] Fix user copy length in ipv6

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Message-Id: <20070319.155140.112852331.davem@davemloft.net>
Date:	Mon, 19 Mar 2007 15:51:40 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	chrisw@...s-sol.org
Cc:	gregkh@...e.de, linux-kernel@...r.kernel.org, stable@...nel.org,
	jmforbes@...uxtx.org, zwane@....linux.org.uk, tytso@....edu,
	rdunlap@...otime.net, davej@...hat.com, chuckw@...ntumlinux.com,
	reviews@...cw.f00f.org, mkrufky@...uxtv.org, cebbert@...hat.com,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, bunk@...sta.de
Subject: Re: [patch 03/31] Fix user copy length in ipv6_sockglue.c

From: Chris Wright <chrisw@...s-sol.org>
Date: Mon, 19 Mar 2007 15:01:25 -0700

> * Greg KH (gregkh@...e.de) wrote:
> > From: Chris Wright <chrisw@...s-sol.org>
> > 
> > [IPV6] fix ipv6_getsockopt_sticky copy_to_user leak
> > 
> > User supplied len < 0 can cause leak of kernel memory.
> > Use unsigned compare instead.
> 
> You can drop this one.  It's dependent on a patch
> that is not in 2.6.20.

That's correct, it can be dropped.
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