Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751426Ab3IJSaQ (ORCPT ); Tue, 10 Sep 2013 14:30:16 -0400 Received: from terminus.zytor.com ([198.137.202.10]:42928 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750873Ab3IJSaO (ORCPT ); Tue, 10 Sep 2013 14:30:14 -0400 Message-ID: <522F6519.4030004@zytor.com> Date: Tue, 10 Sep 2013 11:29:45 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Matthew Garrett CC: Henrique de Moraes Holschuh , David Lang , "Valdis.Kletnieks@vt.edu" , "linux-kernel@vger.kernel.org" , "keescook@chromium.org" , "gregkh@linuxfoundation.org" , "linux-efi@vger.kernel.org" , "jmorris@namei.org" , "linux-security-module@vger.kernel.org" Subject: Re: [PATCH 00/12] One more attempt at useful kernel lockdown References: <1378741786-18430-1-git-send-email-matthew.garrett@nebula.com> <19562.1378747124@turing-police.cc.vt.edu> <1378767723.17982.27.camel@x230.lan> <1378774394.17982.36.camel@x230.lan> <1378781715.17982.42.camel@x230.lan> <1378785208.17982.54.camel@x230.lan> <20130910172318.GB21530@khazad-dum.debian.net> <1378837571.17615.0.camel@x230.lan> In-Reply-To: <1378837571.17615.0.camel@x230.lan> X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 855 Lines: 24 On 09/10/2013 11:26 AM, Matthew Garrett wrote: > On Tue, 2013-09-10 at 14:23 -0300, Henrique de Moraes Holschuh wrote: >> On Tue, 10 Sep 2013, Matthew Garrett wrote: >>> That's why modern systems require signed firmware updates. >> >> Linux doesn't. Is someone working on adding signature support to the >> runtime firmware loader? > > It'd be simple to do so, but so far the model appears to be that devices > that expect signed firmware enforce that themselves. > Most devices do absolutely no verification on the firmware, and simply trust the driver. So signing firmware is probably critical. -hpa -- 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/