linux-kernel - Re: [PATCH 1/2] x86: Fix kernel panic when booting with XD disabled in uEFI firmware

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Message-ID: <20151208205411.GA16417@pd.tnic>
Date:	Tue, 8 Dec 2015 21:54:11 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Kees Cook <keescook@...omium.org>,
	Matt Fleming <matt@...eblueprint.co.uk>,
	Kosuke Tatsukawa <tatsu@...jp.nec.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] x86: Fix kernel panic when booting with XD disabled
 in uEFI firmware

On Tue, Dec 08, 2015 at 12:39:14PM -0800, H. Peter Anvin wrote:
> Actually I think of it much more as a debug option - being able to
> mimic NX-unaware hardware and to track down problems in the field.

Considering it can be dangerous when exposed to the user, should we hide
it behind a "Kernel Hacking" .config option which is default-off?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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