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Date: Wed, 12 Jul 2017 01:56:42 +0300
From: Alexander Popov <alex.popov@...ux.com>
To: Laura Abbott <labbott@...hat.com>, Kees Cook <keescook@...omium.org>
Cc: kernel-hardening@...ts.openwall.com, Mark Rutland <mark.rutland@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>, pageexec@...email.hu,
Brad Spengler <spender@...ecurity.net>, Tycho Andersen <tycho@...ker.com>
Subject: Re: [RFC][PATCH 0/2] draft of stack clearing for arm64
Hello Laura,
On 11.07.2017 01:04, Laura Abbott wrote:
> I made an attempt at implementing stack clearing for arm64 using roughly
> the same algorithm as x86. It passes some level of basic tests but it definitely
> needs more careful review and thought ("submit early and often").
Thank you for joining that fun!
I will send the third version of the STACKLEAK patch shortly, please see the
changes. I'm going to CC x86@...nel.org. Hope they will have a look at the stack
erasing, and we will gain better understanding.
> As an added follow up, self-protection.rst should also be updated with some
> details about how stackleak actually works for people who want to follow on
> for other arches.
Thanks, I've added this to the TODO.
Best regards,
Alexander
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