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

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Date:	Fri, 2 Nov 2012 14:00:57 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Eric Paris <eparis@...isplace.org>,
	Jiri Kosina <jkosina@...e.cz>, Oliver Neukum <oneukum@...e.de>,
	Chris Friesen <chris.friesen@...band.com>,
	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 Fri, Nov 02, 2012 at 01:49:25AM -0700, Eric W. Biederman wrote:

> When the goal is to secure Linux I don't see how any of this helps.
> Windows 8 compromises are already available so if we turn most of these
> arguments around I am certain clever attackers can go through windows to
> run compromised kernel on a linux system, at least as easily as the
> reverse.

And if any of them are used to attack Linux, we'd expect those versions 
of Windows to be blacklisted.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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