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Date: Fri, 05 Apr 2013 08:30:45 -0700
From: "H. Peter Anvin" <>
To: Ingo Molnar <>
CC: Kees Cook <>,,,
        Thomas Gleixner <>, Ingo Molnar <>,, Jarkko Sakkinen <>,
        Matthew Garrett <>,
        Matt Fleming <>,
        Eric Northup <>,
        Dan Rosenberg <>,
        Julien Tinnes <>, Will Drewry <>,
        Linus Torvalds <>
Subject: Re: [PATCH 3/3] x86: kernel base offset ASLR

On 04/05/2013 01:04 AM, Ingo Molnar wrote:
> Random runtime shuffling of the kernel image - is that possible with 
> existing toolchains?

Yes... the question is how much work we'd be willing to go through to
make it happen.

One approach: the kernel already contains a linker -- used for modules
-- and the bulk of the kernel could actually be composed to a "pile of
modules" that gets linked on boot.  This would provide very large
amounts of randomness.


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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