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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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