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Date: Sun, 21 Apr 2002 21:54:07 +0200
From: Pavel Machek <pavel@suse.cz>
To: Doug Ledford <dledford@redhat.com>, Andrea Arcangeli <andrea@suse.de>,
        jh@suse.cz, linux-kernel@vger.kernel.org, jakub@redhat.com, aj@suse.de,
        ak@suse.de, pavel@atrey.karlin.mff.cuni.cz
Subject: Re: SSE related security hole
Message-ID: <20020421195407.GB12120@elf.ucw.cz>
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Hi!

> > It introduces security hole: Unrelated tasks now have your top secret
> > value you stored in one of your registers.
> 
> Well, that's been my point all along and why I sent the patch.  I was not 
> asking why leaving the registers alone instead of 0ing them out was not a 
> security hole.  I was asking why doing so was not backward compatible?

Introducing security hole counts as "poor backcompatibility" to me.
									Pavel
-- 
(about SSSCA) "I don't say this lightly.  However, I really think that the U.S.
no longer is classifiable as a democracy, but rather as a plutocracy." --hpa
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