linux-kernel - Re: [kernel-hardening] Re: [PATCH 3/6] x86: kaslr: return location from decompress

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Message-ID: <CAGXu5jJwu0rCLJo4Qd4Vook11+_yZ=L0YJvHxf8Cx7gyo3yHYg@mail.gmail.com>
Date:	Mon, 29 Apr 2013 10:43:13 -0700
From:	Kees Cook <keescook@...omium.org>
To:	James Morris <jmorris@...ei.org>
Cc:	"kernel-hardening@...ts.openwall.com" 
	<kernel-hardening@...ts.openwall.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	Jarkko Sakkinen <jarkko.sakkinen@...el.com>,
	Matthew Garrett <mjg@...hat.com>,
	Matt Fleming <matt.fleming@...el.com>,
	Eric Northup <digitaleric@...gle.com>,
	Dan Rosenberg <drosenberg@...curity.com>,
	Julien Tinnes <jln@...gle.com>, Will Drewry <wad@...omium.org>
Subject: Re: [kernel-hardening] Re: [PATCH 3/6] x86: kaslr: return location
 from decompress_kernel

On Sun, Apr 28, 2013 at 6:25 PM, James Morris <jmorris@...ei.org> wrote:
> On Fri, 26 Apr 2013, H. Peter Anvin wrote:
>
>> > +   noaslr          [X86]
>> > +                   Disable kernel base offset ASLR (Address Space
>> > +                   Layout Randomization) if built into the kernel.
>> > +
>> >     noautogroup     Disable scheduler automatic task group creation.
>> >
>> >     nobats          [PPC] Do not use BATs for mapping kernel lowmem
>>
>> Calling it "nokaslr" might be useful to note that it is specifically
>> about the kernel.
>
> Agreed.

Yeah, good call. I'll get this changed. Thanks!

-Kees

--
Kees Cook
Chrome OS Security
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