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Date: Fri, 7 Aug 2020 10:20:53 -0700
From: Kees Cook <keescook@...omium.org>
To: Kristen Carlson Accardi <kristen@...ux.intel.com>
Cc: Joe Lawrence <joe.lawrence@...hat.com>, tglx@...utronix.de,
mingo@...hat.com, bp@...en8.de, arjan@...ux.intel.com,
x86@...nel.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com, rick.p.edgecombe@...el.com,
live-patching@...r.kernel.org
Subject: Re: [PATCH v4 00/10] Function Granular KASLR
On Fri, Aug 07, 2020 at 09:38:11AM -0700, Kristen Carlson Accardi wrote:
> Thanks for testing. Yes, Josh and I have been discussing the orc_unwind
> issues. I've root caused one issue already, in that objtool places an
> orc_unwind_ip address just outside the section, so my algorithm fails
> to relocate this address. There are other issues as well that I still
> haven't root caused. I'll be addressing this in v5 and plan to have
> something that passes livepatch testing with that version.
FWIW, I'm okay with seeing fgkaslr be developed progressively. Getting
it working with !livepatching would be fine as a first step. There's
value in getting the general behavior landed, and then continuing to
improve it.
--
Kees Cook
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