linux-kernel - Re: [PATCH V3 08/11] kexec: Disable at runtime if the kernel enforces module loading restrictions

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Message-ID: <alpine.LRH.2.02.1309041048020.20116@tundra.namei.org>
Date:	Wed, 4 Sep 2013 10:48:15 +1000 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Matthew Garrett <matthew.garrett@...ula.com>
cc:	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
	keescook@...omium.org, hpa@...or.com
Subject: Re: [PATCH V3 08/11] kexec: Disable at runtime if the kernel enforces
 module loading restrictions

On Tue, 3 Sep 2013, Matthew Garrett wrote:

> kexec permits the loading and execution of arbitrary code in ring 0, which
> is something that module signing enforcement is meant to prevent. It makes
> sense to disable kexec in this situation.
> 
> Signed-off-by: Matthew Garrett <matthew.garrett@...ula.com>

Reviewed-by: James Morris <jmorris@...ei.org>


-- 
James Morris
<jmorris@...ei.org>
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