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From: Doug Ledford <dledford@redhat.com>
To: Pavel Machek <pavel@suse.cz>
Cc: 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,
	References:  20020417194249.B23438@redhat.com,
	20020418072615.I14322@dualathlon.random
Subject: Re: SSE related security hole
Date: Thu, 18 Apr 2002 15:32:38 -0400	[thread overview]
Message-ID: <20020418153238.A25037@redhat.com> (raw)
In-Reply-To: <20020418072615.I14322@dualathlon.random> <20020418094444.A2450@redhat.com> <20020418192003.GE11220@atrey.karlin.mff.cuni.cz>

On Thu, Apr 18, 2002 at 09:20:03PM +0200, Pavel Machek wrote:
> 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?

-- 
  Doug Ledford <dledford@redhat.com>     919-754-3700 x44233
         Red Hat, Inc. 
         1801 Varsity Dr.
         Raleigh, NC 27606
  

  reply	other threads:[~2002-04-18 19:32 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-17 23:42 SSE related security hole Doug Ledford
2002-04-18  5:26 ` Andrea Arcangeli
2002-04-18  9:10   ` Arjan van de Ven
2002-04-18 11:18   ` Alan Cox
2002-04-18 11:14     ` Andi Kleen
2002-04-18 11:53       ` Alan Cox
2002-04-18 11:46         ` Andi Kleen
2002-04-18 11:55         ` Andi Kleen
2002-04-18 13:44   ` Doug Ledford
2002-04-18 19:20     ` Pavel Machek
2002-04-18 19:32       ` Doug Ledford [this message]
2002-04-21 19:54         ` Pavel Machek
2002-04-18  8:22 ` Andi Kleen
2002-04-18 14:02 ` [OT: nostalgia] " Matthias Andree
  -- strict thread matches above, loose matches on Subject: below --
2002-04-22 22:24 Saxena, Sunil
     [not found] <20020418183639.20946.qmail@science.horizon.com.suse.lists.linux.kernel>
     [not found] ` <a9ncgs$2s2$1@cesium.transmeta.com.suse.lists.linux.kernel>
2002-04-19 14:06   ` Andi Kleen
2002-04-19 18:00     ` Doug Ledford
2002-04-19 21:04       ` Andrea Arcangeli
2002-04-19 21:35         ` H. Peter Anvin
2002-04-19 21:42           ` Andi Kleen
2002-04-20  3:23             ` Andrea Arcangeli
2002-04-19 22:18         ` Jan Hubicka
     [not found] <200204182320.53095.nahshon@actcom.co.il>
2002-04-19 11:22 ` Alan Cox
2002-04-18 18:36 linux
2002-04-18 18:53 ` Richard B. Johnson
2002-04-21 19:52   ` Pavel Machek
2002-04-21 22:11   ` David Wagner
2002-04-18 21:06 ` H. Peter Anvin
2002-04-17 14:51 Jan Hubicka
2002-04-17 15:23 ` Jan Hubicka
2002-04-18 14:57   ` Denis Vlasenko

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