Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934894AbXK3Njg (ORCPT ); Fri, 30 Nov 2007 08:39:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752608AbXK3Nj0 (ORCPT ); Fri, 30 Nov 2007 08:39:26 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:52763 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1757166AbXK3NjZ (ORCPT ); Fri, 30 Nov 2007 08:39:25 -0500 Date: Fri, 30 Nov 2007 13:30:52 +0000 From: Alan Cox To: Valdis.Kletnieks@vt.edu Cc: Jon Masters , Ray Lee , tvrtko.ursulin@sophos.com, Al Viro , Casey Schaufler , Christoph Hellwig , linux-kernel@vger.kernel.org Subject: Re: Out of tree module using LSM Message-ID: <20071130133052.5fdab6f4@the-village.bc.nu> In-Reply-To: <21029.1196403614@turing-police.cc.vt.edu> References: <20071128183040.GW8181@ftp.linux.org.uk> <20071129173601.34273083@the-village.bc.nu> <2c0942db0711291040j4ce48acagb753b64c4b8c1357@mail.gmail.com> <1196362612.6473.98.camel@perihelion> <2c0942db0711291111t16a4eb49h6b1e83ddf7bb4cf9@mail.gmail.com> <1196365551.6473.103.camel@perihelion> <20071129214527.1d62056c@the-village.bc.nu> <1196379273.6473.121.camel@perihelion> <21029.1196403614@turing-police.cc.vt.edu> 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: 798 Lines: 19 > Fortunately for all concerned, although Alan's self-modifying code is indeed a > possibility, it's much less of an issue than the sort of malware that can be > found with a simple "find this 27-byte sequence, which will be found in either > block 36 or 37 of the file" Thats a very old model of detection ;) There is another usage case for this stuff as well - which is on the fly indexing of material. An indexer has the same basic needs as a virus checker (without the blocking aspect) and doesn't have to be robust against sneaky material. Alan - 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/