From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752492Ab2IEFQ7 (ORCPT ); Wed, 5 Sep 2012 01:16:59 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:51496 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750961Ab2IEFQ4 (ORCPT ); Wed, 5 Sep 2012 01:16:56 -0400 Date: Wed, 5 Sep 2012 06:16:52 +0100 From: Matthew Garrett To: "Eric W. Biederman" Cc: linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org Subject: Re: [PATCH 07/11] kexec: Disable in a secure boot environment Message-ID: <20120905051652.GA5133@srcf.ucam.org> References: <1346774117-2277-1-git-send-email-mjg@redhat.com> <1346774117-2277-8-git-send-email-mjg@redhat.com> <87txvdzgur.fsf@xmission.com> <20120904202205.GA28903@srcf.ucam.org> <87r4qhwkx9.fsf@xmission.com> <20120904212717.GA30899@srcf.ucam.org> <87fw6xtp23.fsf@xmission.com> <20120904232503.GA1077@srcf.ucam.org> <871uihozqc.fsf@xmission.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <871uihozqc.fsf@xmission.com> 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 On Tue, Sep 04, 2012 at 09:33:31PM -0700, Eric W. Biederman wrote: > Matthew Garrett writes: > > The full implementation should trust keys that are trusted by the > > platform, so it'd boot any kexec image you cared to sign. Or simply > > patch this code out and rebuild and self-sign, or disable the code that > > turns off the capability when in secure boot mode. I've no objection to > > putting that behind an #ifdef. > > I will be happy to see a version of kexec that accepts signed images, > allowing the functionality to work in your brave new world where > everything must be signed. > > Until then I don't see a point in merging anything else. Fine. We'll just carry this one out of tree for now. -- Matthew Garrett | mjg59@srcf.ucam.org