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Message-ID: <CAGXu5jJcMkknwoa+ZqXrDUTnA+Y603OEf4v=0WO3kz-NH-JwSA@mail.gmail.com>
Date: Mon, 22 May 2017 16:52:15 -0700
From: Kees Cook <keescook@...omium.org>
To: Andy Lutomirski <luto@...nel.org>
Cc: Djalal Harouni <tixxdz@...il.com>, Solar Designer <solar@...nwall.com>,
linux-kernel <linux-kernel@...r.kernel.org>, Network Development <netdev@...r.kernel.org>,
LSM List <linux-security-module@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
Andrew Morton <akpm@...ux-foundation.org>, Rusty Russell <rusty@...tcorp.com.au>,
"Serge E. Hallyn" <serge@...lyn.com>, Jessica Yu <jeyu@...hat.com>,
"David S. Miller" <davem@...emloft.net>, James Morris <james.l.morris@...cle.com>,
Paul Moore <paul@...l-moore.com>, Stephen Smalley <sds@...ho.nsa.gov>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>, Ingo Molnar <mingo@...nel.org>,
Linux API <linux-api@...r.kernel.org>, Dongsu Park <dpark@...teo.net>,
Casey Schaufler <casey@...aufler-ca.com>, Jonathan Corbet <corbet@....net>,
Arnaldo Carvalho de Melo <acme@...hat.com>, Mauro Carvalho Chehab <mchehab@...nel.org>,
Peter Zijlstra <peterz@...radead.org>, Zendyani <zendyani@...il.com>,
"open list:DOCUMENTATION" <linux-doc@...r.kernel.org>, Al Viro <viro@...iv.linux.org.uk>,
Ben Hutchings <ben.hutchings@...ethink.co.uk>
Subject: Re: [PATCH v4 next 0/3] modules: automatic module
loading restrictions
On Mon, May 22, 2017 at 4:38 PM, Andy Lutomirski <luto@...nel.org> wrote:
> I think that having the un-resettable mode is unnecessary. We should
> have option that disables loading modules entirely and cannot be
> unset. (That means no explicit loads and not implicit loads.) Maybe
> we already have this. Otherwise, tightening caps needed for implicit
> loads should just be a normal yes/no setting IMO.
Yup, /proc/sys/kernel/modules_disabled already does this.
--
Kees Cook
Pixel Security
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