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Date: Wed, 24 Feb 2016 15:37:53 -0800
From: Kees Cook <>
To: Laura Abbott <>
Cc: Laura Abbott <>, 
	Greg Kroah-Hartman <>, Arnd Bergmann <>, 
	"" <>, LKML <>
Subject: Re: [PATCHv2] lkdtm: Add READ_AFTER_FREE test

On Wed, Feb 24, 2016 at 1:48 PM, Kees Cook <> wrote:
> On Wed, Feb 24, 2016 at 11:40 AM, Laura Abbott <> wrote:
>> Yep, looks like the v1 patches and not the v2 patches which fix
>> a known issue with the zeroing.
> Ah-ha, I'll go find those and retest.

I sent out a series that was rebased. It works for me, but I want to
make sure I didn't make any glaring issues. I've also sent some fixes
to the lkdtm tests. One thing that stands out to me still is that the
READ_AFTER_FREE never shows poisoning. I remain confused, since
obviously if zeroing is working, it's being correctly poisoned...


Kees Cook
Chrome OS & Brillo Security

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