From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758270AbZBLELZ (ORCPT ); Wed, 11 Feb 2009 23:11:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756834AbZBLEK5 (ORCPT ); Wed, 11 Feb 2009 23:10:57 -0500 Received: from tundra.namei.org ([65.99.196.166]:3437 "EHLO tundra.namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756785AbZBLEK4 (ORCPT ); Wed, 11 Feb 2009 23:10:56 -0500 Date: Thu, 12 Feb 2009 15:08:50 +1100 (EST) From: James Morris To: David Howells cc: "Serge E. Hallyn" , Tetsuo Handa , sds@tycho.nsa.gov, spotter@cs.columbia.edu, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Add in_execve flag into task_struct. In-Reply-To: <2690.1233841235@redhat.com> Message-ID: References: <20090107190652.GA20311@us.ibm.com> <200901060514.n065E462074929@www262.sakura.ne.jp> <20090106155829.GA9773@us.ibm.com> <49639039.4060708@cs.columbia.edu> <1231267532.9746.116.camel@localhost.localdomain> <200901070634.n076YCxF061022@www262.sakura.ne.jp> <2690.1233841235@redhat.com> User-Agent: Alpine 1.10 (LRH 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 5 Feb 2009, David Howells wrote: > Serge E. Hallyn wrote: > > > It's ugly, you can't get me to say it isn't ugly :), and it sets a scary > > bad precedent. But if David insists (in a reply to this msg) that this > > flag really is tops, then just ignore me. Anyway my point wasn't to > > block the patch but to raise discussion (so someone else could decide to > > block it :) on both the flag and security implications of these > > semantics. > > I think it's probably the best way to support Tomoyo's security model without > reworking a chunk of execve(). Agreed. It's somewhat less than perfect, but I don't see a better alternative. - James -- James Morris