From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Friesen Subject: Re: [RFC] Second attempt at kernel secure boot support Date: Mon, 05 Nov 2012 09:37:18 -0600 Message-ID: <5097DD2E.9040909@genband.com> References: <50919EED.3020601@genband.com> <36538307.gzWq1oO7Kg@linux-lqwf.site> <1351760905.2391.19.camel@dabdike.int.hansenpartnership.com> <1351762703.2391.31.camel@dabdike.int.hansenpartnership.com> <1351763954.2391.37.camel@dabdike.int.hansenpartnership.com> <20121101202701.GB20817@xo-6d-61-c0.localdomain> <5092E361.7080901@genband.com> <20121102154833.GG3300@redhat.com> <87390ok0zy.fsf@xmission.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Jiri Kosina Cc: "Eric W. Biederman" , Vivek Goyal , Pavel Machek , Eric Paris , James Bottomley , Oliver Neukum , Alan Cox , Matthew Garrett , Josh Boyer , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org List-Id: linux-efi@vger.kernel.org On 11/05/2012 09:31 AM, Jiri Kosina wrote: > I had a naive idea of just putting in-kernel verification of a complete > ELF binary passed to kernel by userspace, and if the signature matches, > jumping to it. > Would work for elf-x86_64 nicely I guess, but we'd lose a lot of other > functionality currently being provided by kexec-tools. > > Bah. This is a real pandora's box. Would it be so bad to statically link kexec? Chris