From: Arjan van de Ven <arjan@infradead.org>
To: mathias.schnarrenberger@gmx.de
Cc: "Olaf van der Spek" <olafvdspek@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: security: delete BIOS password in keyboard buffer during kernel bootup
Date: Sun, 9 Nov 2008 07:36:30 -0800 [thread overview]
Message-ID: <20081109073630.54496eeb@infradead.org> (raw)
In-Reply-To: <200811090941.20401.mathias.schnarrenberger@gmx.de>
On Sun, 9 Nov 2008 09:41:20 +0100
Mathias Schnarrenberger <mathias.schnarrenberger@gmx.de> wrote:
> > What if my BIOS stores some critical info at that memory address?
> > I don't think the kernel is the right place to work around this
> > issue.
>
> AFAIK every IBM PC compatible BIOS stores the keyboard buffer in this
> area.
>
that's a very bold statement...
there are MANY variations of BIOS that are not "IBM PC compatible". In
fact, that's the rule nowadays... they are only "Windows compatible"
often, anything that Windows doesn't use is.. untested at best.
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
prev parent reply other threads:[~2008-11-09 15:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-08 10:00 security: delete BIOS password in keyboard buffer during kernel bootup Mathias Schnarrenberger
2008-11-08 14:27 ` Alan Cox
2008-11-08 14:36 ` Mathias Schnarrenberger
2008-11-08 16:39 ` Olaf van der Spek
2008-11-09 8:41 ` Mathias Schnarrenberger
2008-11-09 11:08 ` Alan Cox
2008-11-11 16:18 ` Pavel Machek
2008-11-11 16:54 ` Alan Cox
2008-11-12 8:51 ` Gerhard Mack
2008-11-09 15:36 ` Arjan van de Ven [this message]
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