From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1750744AbdAVWKn (ORCPT <rfc822;w@1wt.eu>);
        Sun, 22 Jan 2017 17:10:43 -0500
Received: from namei.org ([65.99.196.166]:33921 "EHLO namei.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1750703AbdAVWKm (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Sun, 22 Jan 2017 17:10:42 -0500
Date: Mon, 23 Jan 2017 09:10:25 +1100 (AEDT)
From: James Morris <jmorris@namei.org>
To: Kees Cook <keescook@chromium.org>
cc: Mike Frysinger <vapier@gentoo.org>,
        James Morris <james.l.morris@oracle.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Andy Lutomirski <luto@amacapital.net>, Will Drewry <wad@chromium.org>,
        Mike Frysinger <vapier@chromium.org>
Subject: Re: [PATCH] seccomp: dump core when using SECCOMP_RET_KILL
In-Reply-To: <CAGXu5jK3Vp9eXZngaK+HosF8Vs_iQEgdSxFXz0w7F4if1qdNFg@mail.gmail.com>
Message-ID: <alpine.LRH.2.20.1701230909540.27432@namei.org>
References: <20170120042857.18953-1-vapier@gentoo.org> <CAGXu5jK3Vp9eXZngaK+HosF8Vs_iQEgdSxFXz0w7F4if1qdNFg@mail.gmail.com>
User-Agent: Alpine 2.20 (LRH 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Fri, 20 Jan 2017, Kees Cook wrote:

> Yup, I think this is fine. The additional kernel code executed before
> the do_exit() is relatively limited, and is equivalent to leaving
> kill(self, SIGSEGV) exposed in a seccomp filter. Setting an RLIMIT is
> also sufficient to block the core generation, so really paranoid
> environments can still do that.
> 
> The forwarded ack stands:
> 
> Acked-by: Kees Cook <keescook@chromium.org>
> 
> James, can you add this to your tree?

Mike, please resend the patch, I don't have it.


-- 
James Morris
<jmorris@namei.org>