Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932132Ab2JaRRv (ORCPT ); Wed, 31 Oct 2012 13:17:51 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:33471 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753912Ab2JaRRs (ORCPT ); Wed, 31 Oct 2012 13:17:48 -0400 Date: Wed, 31 Oct 2012 17:17:43 +0000 From: Matthew Garrett To: Alan Cox Cc: Jiri Kosina , Josh Boyer , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org Subject: Re: [RFC] Second attempt at kernel secure boot support Message-ID: <20121031171743.GA17652@srcf.ucam.org> References: <1348152065-31353-1-git-send-email-mjg@redhat.com> <20121029174131.GC7580@srcf.ucam.org> <20121031155503.1aaf4c93@pyramind.ukuu.org.uk> <20121031170334.59833fb1@pyramind.ukuu.org.uk> <20121031171048.GA17163@srcf.ucam.org> <20121031172121.14cc1215@pyramind.ukuu.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121031172121.14cc1215@pyramind.ukuu.org.uk> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 713 Lines: 19 On Wed, Oct 31, 2012 at 05:21:21PM +0000, Alan Cox wrote: > On Wed, 31 Oct 2012 17:10:48 +0000 > Matthew Garrett wrote: > > The kernel is signed. The kernel doesn't check the signature on the > > suspend image. > > Which doesn't matter. How are you going to create the tampered image in > the first place ? By booting a signed kernel, not turning on swap and writing directly to the swap partition. -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/