linux-kernel - Re: [PATCH v2 1/2] procfs: make /proc/*/{stack,syscall,personality} 0400

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Date:	Tue, 25 Mar 2014 11:15:50 +0100
From:	Djalal Harouni <tixxdz@...ndz.org>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] procfs: make /proc/*/{stack,syscall,personality}
 0400

Hi Alexey,

On Mon, Mar 24, 2014 at 04:41:43PM +0300, Alexey Dobriyan wrote:
> > - ONE("stack",      S_IRUGO, proc_pid_stack),
> > + ONE("stack",      S_IRUSR, proc_pid_stack),
> 
> no love for /proc/*/wchan?

Yes you are right, didn't want to modify lot of things, and I missed that one.

So there is the ptrace check that will just block cases where users do
_not_ play tricks with the fd. I'll send another v3 with that included.

Thanks!

-- 
Djalal Harouni
http://opendz.org
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