Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753955AbXIZAP0 (ORCPT ); Tue, 25 Sep 2007 20:15:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750872AbXIZAPO (ORCPT ); Tue, 25 Sep 2007 20:15:14 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:46542 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751065AbXIZAPM (ORCPT ); Tue, 25 Sep 2007 20:15:12 -0400 Date: Wed, 26 Sep 2007 01:18:47 +0100 From: Alan Cox To: David Newall Cc: "Serge E. Hallyn" , Bill Davidsen , Philipp Marek , 7eggert@gmx.de, majkls , bunk@fs.tum.de, linux-kernel@vger.kernel.org Subject: Re: Chroot bug Message-ID: <20070926011847.49bbb9a2@the-village.bc.nu> In-Reply-To: <46F99EDE.70905@davidnewall.com> References: <56705.193.171.152.61.1190289559.squirrel@webmail.marek.priv.at> <46F29A9A.4070806@davidnewall.com> <200709201817.17282@x5> <46F2B59F.8090709@davidnewall.com> <46F2DDD0.3030500@tmr.com> <46F380E4.4040606@davidnewall.com> <20070924213215.GA32716@vino.hallyn.com> <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> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 735 Lines: 15 > Good call. Though I suppose, since it's used 24x7 to aid security on > countless production servers, that security dwarfs testing. Still, > debugging, yes that's valid. > > I don't suppose it makes and difference; whatever the purpose, a chroot > that doesn't change the root is buggy. It does change the root, it just doesn't guarantee you can't change it back - which is correct POSIX, Unix, SuS behaviour. So either everyone else is wrong or you are.. I know who I am betting on - 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/