From: "Anthony G. Basile" <blueness@gentoo.org>
To: kernel-hardening@lists.openwall.com
Subject: Re: [kernel-hardening] overview of PaX features
Date: Sat, 02 Jul 2011 21:06:20 -0400 [thread overview]
Message-ID: <4E0FC08C.8050600@gentoo.org> (raw)
In-Reply-To: <20110629194339.GA15379@openwall.com>
On 06/29/2011 03:43 PM, Solar Designer wrote:
> Vasiliy,
>
> On Wed, Jun 29, 2011 at 10:37:28PM +0400, Vasiliy Kulikov wrote:
>> That's not only about old apps, but also a default relaxed policy for
>> the toolchain:
>>
>> http://www.gentoo.org/proj/en/hardened/gnu-stack.xml
>
> Of course. In my experience, most programs that currently get
> executable stack actually don't need it.
>
Ditto. When we couldn't fix the source code, we used to use execstack
from the prelink package to remove the X flag from PT_GNU_STACK phdrs.
Recently I wrote fix-gnustack.c to avoid all the extra prelink stuff [1]
and we're using that now.
Ref.
[1] http://git.overlays.gentoo.org/gitweb/?p=proj/elfix.git;a=summary
--
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
E-Mail : blueness@gentoo.org
GnuPG FP : 8040 5A4D 8709 21B1 1A88 33CE 979C AF40 D045 5535
GnuPG ID : D0455535
prev parent reply other threads:[~2011-07-03 1:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-26 18:33 [kernel-hardening] overview of PaX features Vasiliy Kulikov
2011-06-29 18:25 ` Solar Designer
2011-06-29 18:37 ` Vasiliy Kulikov
2011-06-29 19:43 ` Solar Designer
2011-06-30 16:03 ` Vasiliy Kulikov
2011-07-02 17:21 ` Solar Designer
2011-07-02 17:46 ` Vasiliy Kulikov
2011-07-03 1:06 ` Anthony G. Basile [this message]
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