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Date: Fri, 2 Jun 2017 21:37:34 -0700
From: Kees Cook <>
To: Rik van Riel <>, Andrew Morton <>
Cc: LKML <>, 
	"" <>, Ingo Molnar <>, 
	Oleg Nesterov <>, Larry Woodman <>,, 
	Daniel Micay <>, Will Deacon <>, 
	"" <>
Subject: Re: [PATCH 0/6] move mmap_area and PIE binaries
 away from the stack

On Fri, Jun 2, 2017 at 8:20 AM,  <> wrote:
> There are a few bugs causing the kernel to sometimes map PIE
> binaries and the mmap_area where the stack is supposed to go.
> This series fixes them for x86, ARM64, and PPC.
> S390 seems to be ok.
> If people are fine with this approach, I can work my way
> through other architectures, too.

Andrew, I'd rather the ELF_ET_DYN_BASE changes not be in -mm yet. I
think it's the wrong approach. Patch 1 (comment update) is fine.
Patches 3 and 4 need some (minor?) adjustments, but the ELF_DYN_BASE
patches need much more thought, IMO (I've sent a separate email about
those.) And please add me to explicit the Cc list for this series.


Kees Cook
Pixel Security

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