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Date: Thu, 10 Dec 2015 11:23:34 -0800
From: Kees Cook <keescook@...omium.org>
To: "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>
Cc: Catalin Marinas <catalin.marinas@....com>, PaX Team <pageexec@...email.hu>,
Michael Ellerman <mpe@...erman.id.au>, Heiko Carstens <heiko.carstens@...ibm.com>,
Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: Self Introduction
On Thu, Dec 10, 2015 at 11:07 AM, Daniel Micay <danielmicay@...il.com> wrote:
>> Yeah. PCID was Sandybridge and later?
>
> Yeah, that's right. And it defaults to the strong PCID implementation,
> but there's also a weaker but significantly faster PCID-based one.
Is there anyone from Intel on the list? I would love to see UDEREF
ported to upstream on x86 (and the non PCID version too). No one has
stepped up to work on it yet.
As for non-ARM and non-x86, IIRC s/390 has always had PAN, and I'd
love to update the matrix for powerpc and MIPS.
http://kernsec.org/wiki/index.php/Exploit_Methods/Userspace_data_usage
-Kees
--
Kees Cook
Chrome OS & Brillo Security
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