Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757146AbXIZK1u (ORCPT ); Wed, 26 Sep 2007 06:27:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754883AbXIZK1n (ORCPT ); Wed, 26 Sep 2007 06:27:43 -0400 Received: from hawking.rebel.net.au ([203.20.69.83]:34330 "EHLO hawking.rebel.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754050AbXIZK1m (ORCPT ); Wed, 26 Sep 2007 06:27:42 -0400 Message-ID: <46FA341A.80706@davidnewall.com> Date: Wed, 26 Sep 2007 19:57:38 +0930 From: David Newall User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.2) Gecko/20070221 SeaMonkey/1.1.1 MIME-Version: 1.0 To: Kyle Moffett CC: Adrian Bunk , Alan Cox , "Serge E. Hallyn" , Bill Davidsen , Philipp Marek , 7eggert@gmx.de, majkls , bunk@fs.tum.de, linux-kernel@vger.kernel.org Subject: Re: Chroot bug References: <46F83474.5040503@davidnewall.com> <20070924230008.GA3160@vino.hallyn.com> <46F8BC8A.7080006@davidnewall.com> <20070925114947.GA9721@vino.hallyn.com> <46F91417.9050600@davidnewall.com> <46F924E3.50205@davidnewall.com> <20070925163040.12a3c2f8@the-village.bc.nu> <46F92AAB.1060903@davidnewall.com> <20070925164806.4cadc6a5@the-village.bc.nu> <46F99EDE.70905@davidnewall.com> <20070926005551.GS6800@stusta.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 660 Lines: 14 Kyle Moffett wrote: > David, please do tell myself and Adrian how "locking down" chroot() > the way you want will avoid letting root break out through any of the > above ways? As has been said, there are thousands of ways to break out of a chroot. It's just that one of them should not be that chroot lets you walk out. I can't explain it clearer than that. If you don't see it now you probably never will. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/