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Open Source and information security mailing list archives
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Date: Wed, 05 Sep 2012 00:00:31 -0700 From: ebiederm@...ssion.com (Eric W. Biederman) To: Matthew Garrett <mjg59@...f.ucam.org> Cc: linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org Subject: Re: [PATCH 07/11] kexec: Disable in a secure boot environment Matthew Garrett <mjg59@...f.ucam.org> writes: > On Tue, Sep 04, 2012 at 09:33:31PM -0700, Eric W. Biederman wrote: >> Matthew Garrett <mjg59@...f.ucam.org> 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. It is your tree. I am disappointed to learn that you aren't enthusiastic about implementing verification of signatures for all code that goes into ring 0. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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