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Date: Tue, 26 Jul 2011 16:07:04 +0400
From: Vasiliy Kulikov <segoon@...nwall.com>
To: kernel-hardening@...ts.openwall.com
Subject: Re: GNU_STACK policy problem

Solar, Eugene,

On Sun, Jul 24, 2011 at 18:06 +0400, Solar Designer wrote:
> On Sun, Jul 24, 2011 at 12:39:07PM +0400, Vasiliy Kulikov wrote:
> > On Sat, Jul 23, 2011 at 19:06 +0400, Solar Designer wrote:
> > > I started looking into this, and here's what I found in RHEL 5 kernels:
> > 
> > Very interesting.  The same code is present in RHEL 6.  However, I don't
> > see the problem of GNU_STACK in DSOs is somehow solved.  Maybe RHEL 6
> > glibc has appropriate patches for loader?
> 
> I don't know.  Please take a look.

I failed to find anything GNU_STACK related in RHEL6 glibc patches.
Weird.  Probably they really decided to enforce NX GNU_STACK of binaries
only, leaving libraries' GNU_STACK as is (without NX enforcement)
because of the same reasons.

Thanks,

-- 
Vasiliy

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