linux-kernel - Re: [PATCH 06/24] Add a sysrq option to exit secure boot mode

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Message-ID: <alpine.DEB.2.20.1704142003570.2327@nanos>
Date:   Fri, 14 Apr 2017 20:05:07 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     David Howells <dhowells@...hat.com>
cc:     LKML <linux-kernel@...r.kernel.org>,
        Kyle McMartin <kyle@...hat.com>, linux-efi@...r.kernel.org,
        gnomes@...rguk.ukuu.org.uk, gregkh@...uxfoundation.org,
        x86@...nel.org, linux-security-module@...r.kernel.org,
        keyrings@...r.kernel.org, matthew.garrett@...ula.com,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: Re: [PATCH 06/24] Add a sysrq option to exit secure boot mode

On Wed, 5 Apr 2017, David Howells wrote:

> From: Kyle McMartin <kyle@...hat.com>
> 
> Make sysrq+x exit secure boot mode on x86_64, thereby allowing the running
> kernel image to be modified.  This lifts the lockdown.
> 
> Signed-off-by: Kyle McMartin <kyle@...hat.com>
> Signed-off-by: David Howells <dhowells@...hat.com>
> cc: x86@...nel.org

Matt, Ard?

Any opinions on this?

Thanks,

	tglx