Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762276AbXISSk4 (ORCPT ); Wed, 19 Sep 2007 14:40:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751509AbXISSkt (ORCPT ); Wed, 19 Sep 2007 14:40:49 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:58778 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751468AbXISSks (ORCPT ); Wed, 19 Sep 2007 14:40:48 -0400 Date: Wed, 19 Sep 2007 19:45:59 +0100 From: Alan Cox To: Bill Davidsen Cc: majkls , bunk@fs.tum.de, linux-kernel@vger.kernel.org Subject: Re: sys_chroot+sys_fchdir Fix Message-ID: <20070919194559.36015307@the-village.bc.nu> In-Reply-To: <46F16A0A.3070402@tmr.com> References: <46F0CD96.9030807@prepere.com> <20070919104018.3a6bcfb1@the-village.bc.nu> <46F16A0A.3070402@tmr.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: 459 Lines: 11 > I thought this was to prevent breaking out of chroot as a normal user. > ie. chroot /var/myjail /bin/su - guest > or similar. Normal users cannot use chroot() themselves so they can't use chroot to get back out - 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/