From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH 00/12] One more attempt at useful kernel lockdown Date: Tue, 10 Sep 2013 11:29:45 -0700 Message-ID: <522F6519.4030004@zytor.com> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1378837571.17615.0.camel-+5W/JHIUVxg@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Matthew Garrett Cc: Henrique de Moraes Holschuh , David Lang , "Valdis.Kletnieks-PjAqaU27lzQ@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org" , "gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org" , "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "jmorris-gx6/JNMH7DfYtjvyW6yDsg@public.gmane.org" , "linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-efi@vger.kernel.org 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