linux-kernel - Re: [PATCH v2] futex: mark get_robust

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAGXu5j+Cfhs8TqG59uJHf-4WFG8BD2i9EJDvSsTrpPyLUNTMzw@mail.gmail.com>
Date:	Fri, 3 Aug 2012 10:16:50 -0700
From:	Kees Cook <keescook@...omium.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Pavel Emelyanov <xemul@...allels.com>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	richard -rw- weinberger <richard.weinberger@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Darren Hart <dvhart@...ux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <jkosina@...e.cz>,
	David Howells <dhowells@...hat.com>,
	"Serge E. Hallyn" <serge.hallyn@...onical.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"kernel-hardening@...ts.openwall.com" 
	<kernel-hardening@...ts.openwall.com>,
	"spender@...ecurity.net" <spender@...ecurity.net>
Subject: Re: [PATCH v2] futex: mark get_robust_list as deprecated

Right, I'm satisfied with the ptrace_may_access check that was added.
The deprecation was suggested as an additional change. I'm okay
keeping the syscall if someone actually needs it. :)

-Kees

On Fri, Aug 3, 2012 at 5:58 AM, Eric W. Biederman <ebiederm@...ssion.com> wrote:
> The permissions on the syscall were fixed them withR ptrace_may_access.
>
> We have identified two legitimate use cases.
>
> It looks like it is time for someone to generate the path to remove the depreciation.
>
> Who is up for writing and testing that patch?
>
> Eric
>



-- 
Kees Cook
Chrome OS Security
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/