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Message-ID: <CAGXu5j+O1YZZ1k6xVvp=xJkpqMXr0c5ADjPYCS0TdVvuJ0-1vg@mail.gmail.com>
Date: Thu, 27 Oct 2016 16:15:01 -0700
From: Kees Cook <keescook@...omium.org>
To: Michael Leibowitz <michael.leibowitz@...el.com>
Cc: Brad Spengler <spender@...ecurity.net>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, Emese Revfy <re.emese@...il.com>,
PaX Team <pageexec@...email.hu>, "Schaufler, Casey" <casey.schaufler@...el.com>,
"Reshetova, Elena" <elena.reshetova@...el.com>
Subject: Re: [PATCH] Add the randstruct gcc plugin
On Fri, Oct 21, 2016 at 10:37 AM, Michael Leibowitz
<michael.leibowitz@...el.com> wrote:
> This plugin randomizes the layout of certain structures at compile
> time. This introduces two defines __randomize_layout and
> __no_randomize_layout. Which, in turn, tell the compiler to either
> try to randomize or not to randomize the struct in question.
How are you testing this, btw? I manually marked struct cred with
__randomize_layout, and "pahole vmlinux" shows it is not randomized...
-Kees
--
Kees Cook
Nexus Security
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