From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265711AbUBCEf4 (ORCPT ); Mon, 2 Feb 2004 23:35:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265794AbUBCEf4 (ORCPT ); Mon, 2 Feb 2004 23:35:56 -0500 Received: from cpe-24-221-190-179.ca.sprintbbd.net ([24.221.190.179]:52609 "EHLO myware.akkadia.org") by vger.kernel.org with ESMTP id S265711AbUBCEfz (ORCPT ); Mon, 2 Feb 2004 23:35:55 -0500 Message-ID: <401F251C.2090300@redhat.com> Date: Mon, 02 Feb 2004 20:35:40 -0800 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7a) Gecko/20040118 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andrea Arcangeli CC: john stultz , lkml Subject: Re: [RFC][PATCH] linux-2.6.2-rc2_vsyscall-gtod_B1.patch References: <1075344395.1592.87.camel@cog.beaverton.ibm.com> <401894DA.7000609@redhat.com> <20040201012803.GN26076@dualathlon.random> In-Reply-To: <20040201012803.GN26076@dualathlon.random> X-Enigmail-Version: 0.83.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrea Arcangeli wrote: > I definitely call it a great success, You got to be kidding. Some object fixed in the address space which can perform system calls. Nothing is more welcome to somebody trying to exploit some bugs. The vdso must be randomized. This is completely impossible with this stupid fixed address scheme and it must be changed as soon as possible. -- ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖