Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752287AbZG1JVc (ORCPT ); Tue, 28 Jul 2009 05:21:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750928AbZG1JVb (ORCPT ); Tue, 28 Jul 2009 05:21:31 -0400 Received: from one.firstfloor.org ([213.235.205.2]:34488 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750733AbZG1JVa (ORCPT ); Tue, 28 Jul 2009 05:21:30 -0400 To: Alan Cox Cc: James Morris , James Carter , Eric Paris , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov, Stephen Smalley , spender@grsecurity.net, Daniel J Walsh , cl@linux-foundation.org, Arjan van de Ven , kees@outflux.net, Chad Sellers , Tetsuo Handa , mingo@elte.hu Subject: Re: mmap_min_addr and your local LSM (ok, just SELinux) From: Andi Kleen References: <1248132223.2654.278.camel@localhost> <1248187482.19456.90.camel@moss-lions.epoch.ncsc.mil> <20090728011943.589176cb@lxorguk.ukuu.org.uk> Date: Tue, 28 Jul 2009 11:21:29 +0200 In-Reply-To: <20090728011943.589176cb@lxorguk.ukuu.org.uk> (Alan Cox's message of "Tue, 28 Jul 2009 01:19:43 +0100") Message-ID: <87zlapgo2u.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 809 Lines: 20 Alan Cox writes: > A dumb question perhaps, but while addling my brain over the tty layer I > was wondering if for the specific case of jump through NULL (which seems > to be the most common but by no means only problem case that gets > exploited) is there any reason we can't set a default breakpoint for You mean a hardware breakpoint? Hardware break points are a precious scarce resource. The people who rely on them would be likely unhappy if you take one way from them. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/