From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753418AbYIEUO2 (ORCPT ); Fri, 5 Sep 2008 16:14:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751524AbYIEUOT (ORCPT ); Fri, 5 Sep 2008 16:14:19 -0400 Received: from r00tworld.com ([212.85.137.21]:52401 "EHLO r00tworld.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751412AbYIEUOS (ORCPT ); Fri, 5 Sep 2008 16:14:18 -0400 From: pageexec@freemail.hu To: Ingo Molnar , Andi Kleen Date: Fri, 05 Sep 2008 21:42:48 +0200 MIME-Version: 1.0 Subject: Re: [patch] Add basic sanity checks to the syscall execution patch Reply-to: pageexec@freemail.hu CC: Benjamin Herrenschmidt , Andi Kleen , Arjan van de Ven , linux-kernel@vger.kernel.org, tglx@tglx.de, hpa@zytor.com Message-ID: <48C18BB8.13126.4E8982B@pageexec.freemail.hu> In-reply-to: <20080905172644.GV18288@one.firstfloor.org> References: <20080905154221.GF10292@elte.hu>, <20080905165239.GA12645@elte.hu>, <20080905172644.GV18288@one.firstfloor.org> X-mailer: Pegasus Mail for Windows (4.50 PB1) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.12 (r00tworld.com [212.85.137.21]); Fri, 05 Sep 2008 21:43:16 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5 Sep 2008 at 19:26, Andi Kleen wrote: > > First such checkers already exist -- they are called root kit checkers. > There are various around. > Usually operate from user space. You could run them in a cron job. how trivial do you think it is for *kernel* code to evade *userland* checking it? ;) otherwise agreed with rest.