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Date: Thu, 4 Apr 2013 13:19:21 -0700
From: Julien Tinnes <jln@...gle.com>
To: "H. Peter Anvin" <hpa@...or.com>
Cc: Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org, 
	kernel-hardening@...ts.openwall.com, Thomas Gleixner <tglx@...utronix.de>, 
	Ingo Molnar <mingo@...hat.com>, 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>, Will Drewry <wad@...omium.org>
Subject: Re: [PATCH 3/3] x86: kernel base offset ASLR

On Thu, Apr 4, 2013 at 1:12 PM, H. Peter Anvin <hpa@...or.com> wrote:
> On 04/04/2013 01:07 PM, Kees Cook wrote:
>> However, the benefits of
>> this feature in certain environments exceed the perceived weaknesses[2].
>
> Could you clarify?

I think privilege reduction in general, and sandboxing in particular,
can make KASLR even more useful. A lot of the information leaks can be
mitigated in the same way as attack surface and vulnerabilities can be
mitigated.

Julien

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