linux-kernel - Re: [PATCH] sgi-gru: Fix kernel stack buffer overrun

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Message-ID: <20090720232649.GA5009@sgi.com>
Date:	Mon, 20 Jul 2009 18:26:49 -0500
From:	Jack Steiner <steiner@....com>
To:	Michael Buesch <mb@...sch.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sgi-gru: Fix kernel stack buffer overrun

On Tue, Jul 21, 2009 at 12:08:38AM +0200, Michael Buesch wrote:
> This patch fixes a kernel stack buffer overrun in the sgi-gru procfs
> interface implementation.
> The "count" parameter to options_write() is user controlled. So this bug
> can be used to write '\0' bytes to almost arbitrary places on the kernel stack.
> 
> Signed-off-by: Michael Buesch <mb@...sch.de>
> Cc: stable@...nel.org

Acked-by: Jack Steiner <steiner@....com>


Thanks...

--- jack
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