linux-kernel - Re: security: delete BIOS password in keyboard buffer during kernel bootup

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Message-ID: <20081108142705.59c1ced7@lxorguk.ukuu.org.uk>
Date:	Sat, 8 Nov 2008 14:27:05 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	mathias.schnarrenberger@....de
Cc:	linux-kernel@...r.kernel.org
Subject: Re: security: delete BIOS password in keyboard buffer during kernel
 bootup

> So, I think it would be good if the kernel clears the keyboard buffer during boot up (at least in x86-based systems) to protect the users password. I don't know anything about EFI-based systems and other architectures.
> Because I'm not sure where to implement the code to delete the keyboard buffer in the kernel, I can't make a proper patch. Possibly one of you can do this ;)

Clear it with a program if it bothers you. You've written 90% of the
needed code with the program below.


Alan
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