linux-kernel - Re: [RFC] Second attempt at kernel secure boot support

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Message-ID: <5097DD2E.9040909@genband.com>
Date:	Mon, 05 Nov 2012 09:37:18 -0600
From:	Chris Friesen <chris.friesen@...band.com>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Vivek Goyal <vgoyal@...hat.com>, Pavel Machek <pavel@....cz>,
	Eric Paris <eparis@...isplace.org>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Oliver Neukum <oneukum@...e.de>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Josh Boyer <jwboyer@...il.com>, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org
Subject: Re: [RFC] Second attempt at kernel secure boot support

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
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