Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754536AbZKHTlJ (ORCPT ); Sun, 8 Nov 2009 14:41:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754030AbZKHTlI (ORCPT ); Sun, 8 Nov 2009 14:41:08 -0500 Received: from one.firstfloor.org ([213.235.205.2]:53366 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752690AbZKHTlI (ORCPT ); Sun, 8 Nov 2009 14:41:08 -0500 Date: Sun, 8 Nov 2009 20:41:12 +0100 From: Andi Kleen To: matthieu castet Cc: Andi Kleen , linux-kernel@vger.kernel.org, Alan Cox , jkosina@suse.cz, hpa@zytor.com Subject: Re: Using x86 segments against NULL pointer deference exploit Message-ID: <20091108194112.GB14381@basil.fritz.box> References: <1257512389.4af41dc504e1b@imp.free.fr> <87eiob76fh.fsf@basil.nowhere.org> <4AF6D7F8.3070004@free.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4AF6D7F8.3070004@free.fr> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 363 Lines: 11 Please see 12.3.3.3 of http://www.intel.com/Assets/PDF/manual/248966.pdf for details why this is a bad idea. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/