Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265331AbUAFDvQ (ORCPT ); Mon, 5 Jan 2004 22:51:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265332AbUAFDvQ (ORCPT ); Mon, 5 Jan 2004 22:51:16 -0500 Received: from web40609.mail.yahoo.com ([66.218.78.146]:20117 "HELO web40609.mail.yahoo.com") by vger.kernel.org with SMTP id S265331AbUAFDvO (ORCPT ); Mon, 5 Jan 2004 22:51:14 -0500 Message-ID: <20040106035114.63926.qmail@web40609.mail.yahoo.com> Date: Tue, 6 Jan 2004 04:51:14 +0100 (CET) From: =?iso-8859-1?q?szonyi=20calin?= Subject: Re: 2.6.1-rc1 affected? To: Jonathan Higdon Cc: linux-kernel@vger.kernel.org, Jesper Juhl , Bastiaan Spandaw , Tomas Szepe , Max Valdez In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1618 Lines: 55 --- Jonathan Higdon a ?crit : > > > On Tue, 6 Jan 2004, [iso-8859-1] szonyi calin wrote: > > > > > > > On my box that program is a very effective 'instant > reboot'. > > > > > > > on mine just a segfault :-) > > sony@grinch -04:47:32- 0 jobs, ver 2.05b.0 3 > > /~/schule $ gcc -o mremap_poc mremap_poc.c > > sony@grinch -04:47:35- 0 jobs, ver 2.05b.0 3 > > /~/schule $ ./mremap_poc > > Segmentation fault > > correction if it is compileg withj -g and statically linked and run from a gdb session it hard locks the machine. Only a hard reset helps if it's run from a shell -> segfaults :-) so at least on my system an atacker needs gdb to crash the machine :-) > > > The instant I ran it from a xterm my screen went black, > the > > > music I was > > > listening to from a CD stopped and the machine rebooted. > > > The running kernel was 2.6.1-rc1-mm1 > > > > > > > maybe you were running the program as root ? > > I tried it on 2.6.0 as a regular user and got an instant > reboot. > stracing it showed the faults and the system was unusable > after that :) > > ~jon ===== -- A mouse is a device used to point at the xterm you want to type in. Kim Alm on a.s.r. _________________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran?ais ! Yahoo! Mail : http://fr.mail.yahoo.com - 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/