From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754014AbZJDX1Y (ORCPT ); Sun, 4 Oct 2009 19:27:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752648AbZJDX1Y (ORCPT ); Sun, 4 Oct 2009 19:27:24 -0400 Received: from one.firstfloor.org ([213.235.205.2]:48442 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbZJDX1X (ORCPT ); Sun, 4 Oct 2009 19:27:23 -0400 Date: Mon, 5 Oct 2009 01:26:39 +0200 From: Andi Kleen To: Pavel Machek Cc: Shane Wang , "Rafael J. Wysocki" , "linux-kernel@vger.kernel.org" , Ingo Molnar , "H. Peter Anvin" , "Cihula, Joseph" , "arjan@linux.intel.com" , "andi@firstfloor.org" , "chrisw@sous-sol.org" , "jmorris@namei.org" , "jbeulich@novell.com" , "peterm@redhat.com" Subject: Re: [PATCH] intel_txt: add s3 userspace memory integrity verification Message-ID: <20091004232639.GQ1656@one.firstfloor.org> References: <4A9CE0B2.5060608@intel.com> <4ABF2B50.6070106@intel.com> <20091004185801.GC1378@ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091004185801.GC1378@ucw.cz> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > So I corrupt memory, but also corrupt tboot_enabled() to return 0.... > > And... does panic kill the machine quickly enough that no 'bad stuff' > happens? (Whats bad stuff in this context, anyway?). panic has notifiers, so indeed someone could put arbitary code into panic. -Andi -- ak@linux.intel.com -- Speaking for myself only.