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

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Date:   Sun, 16 Apr 2017 21:46:21 +0100
From:   Matt Fleming <matt@...eblueprint.co.uk>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     David Howells <dhowells@...hat.com>,
        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,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: Re: [PATCH 06/24] Add a sysrq option to exit secure boot mode

On Fri, 14 Apr, at 08:05:07PM, Thomas Gleixner wrote:
> 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?

Looks OK to me.