linux-kernel - Re: {2.6.22.y} CVE-2007-6434

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Message-ID: <6101e8c40802041336r6da626dfv70bda527edb891da@mail.gmail.com>
Date:	Mon, 4 Feb 2008 22:36:36 +0100
From:	"Oliver Pinter" <oliver.pntr@...il.com>
To:	"Chris Wright" <chrisw@...s-sol.org>
Cc:	stable@...nel.org, linux-kernel@...r.kernel.org,
	"Greg KH" <gregkh@...e.de>, "Willy Tarreau" <w@....eu>,
	"Adrian Bunk" <bunk@...nel.org>, "Nick Piggin" <npiggin@...e.de>
Subject: Re: {2.6.22.y} CVE-2007-6434

ok, thanks

On 2/4/08, Chris Wright <chrisw@...s-sol.org> wrote:
> * Oliver Pinter (oliver.pntr@...il.com) wrote:
> > mainline: ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5
> >
> > --->8---
> > commit ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5
> > Author: Eric Paris <eparis@...hat.com>
> > Date:   Tue Dec 4 23:45:31 2007 -0800
> >
> >     VM/Security: add security hook to do_brk
> >
> >     Given a specifically crafted binary do_brk() can be used to get low
> pages
> >     available in userspace virtual memory and can thus be used to
> circumvent
> >     the mmap_min_addr low memory protection.  Add security checks in
> do_brk().
>
> All of the low mmap addr stuff isn't added until 2.6.23.
>
> thanks,
> -chris
>


-- 
Thanks,
Oliver
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