From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751249AbWEWBjT (ORCPT ); Mon, 22 May 2006 21:39:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751250AbWEWBjT (ORCPT ); Mon, 22 May 2006 21:39:19 -0400 Received: from rwcrmhc11.comcast.net ([216.148.227.151]:25778 "EHLO rwcrmhc11.comcast.net") by vger.kernel.org with ESMTP id S1751249AbWEWBjT (ORCPT ); Mon, 22 May 2006 21:39:19 -0400 Message-ID: <447266A7.8080100@comcast.net> Date: Mon, 22 May 2006 21:34:31 -0400 From: John Richard Moser User-Agent: Thunderbird 1.5.0.2 (X11/20060522) MIME-Version: 1.0 To: Arjan van de Ven CC: Pavel Machek , linux-kernel@vger.kernel.org Subject: Re: [PATCH] 2.6.16.16 Parameter-controlled mmap/stack randomization References: <446E6A3B.8060100@comcast.net> <1148132838.3041.3.camel@laptopd505.fenrus.org> <446F3483.40208@comcast.net> <20060522010606.GC25434@elf.ucw.cz> <44712605.4000001@comcast.net> <20060522083352.GA11923@elf.ucw.cz> <4471E77F.1010704@comcast.net> <1148346316.3100.6.camel@laptopd505.fenrus.org> In-Reply-To: <1148346316.3100.6.camel@laptopd505.fenrus.org> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Arjan van de Ven wrote: > On Mon, 2006-05-22 at 12:31 -0400, John Richard Moser wrote: >> It is still possible that ARCH_STACK_RANDOM_BITS_DEFAULT breaks things. >> The current kernel default broke emacs at first I heard; > > hearsay.. where did you hear this and what exact randomization was this? > Sorry, I googled it, you were talking about brk() randomization (which I STILL want to see! :D) http://lkml.org/lkml/2005/1/28/29 > >> I believe we >> started with 64KiB of stack randomization and then upped it to 8MiB when >> emacs was fixed. > > this is new information to me, I find this really really hard to believe > as true but maybe you have information I don't have... See this is why I said "I believe..." :) > > > > - -- All content of all messages exchanged herein are left in the Public Domain, unless otherwise explicitly stated. Creative brains are a valuable, limited resource. They shouldn't be wasted on re-inventing the wheel when there are so many fascinating new problems waiting out there. -- Eric Steven Raymond We will enslave their women, eat their children and rape their cattle! -- Bosc, Evil alien overlord from the fifth dimension -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQIVAwUBRHJmpQs1xW0HCTEFAQLX9Q//Rm0CvdLkPSq0UCLot9Mqyuj4REVwaGrV VwJOGJgElyE/RFqu5MI8ab8CV7WUgKiV/wWrxyrfXRpW4uuYbedIsXAw8tzlJq/c o+4FLVQBS+cXJ96VXIsHLIConlF21pXBZDzBFHHwfSsUsmbvgeJ0WavC3x3N7y6B Bq4/RfVmf6yEECGSemoApzpbMR01anK6/nc1t0P9iMpsK5tlE9Q7r4/pB3wyRVmY 66GKAbcC4gU9CHtuu2e158/FCQXcfVZ1nFvKWGZyPWGAZAEiGazrMM5iv962EHX3 bqHKcMhr6BxsQt6LG7jzplg6YMDppqqWtiiIUfVJSnW65k1a2AmdGAEi0ZIe7IDm T/YJRJqi54NOcI+UJ4FcODdlxfZ2EiVXNY22sf9wpn1lQpWt1TX4pbsaHjHVlLB7 8pBQzHSD+P9rDJ0eXfAC+0Vi0V/K1Yna/qhtdEnX2pp08zc2rdC6hu466MGWsH1u vzD4772nWekd/c9Yby2BXbq+lwXHNA5iIwLBPA/NQwmSENFCdYhIFSrIOBjctQ1W u85q3dhtFfXhTdwRdjfYtpoiYGIDx4l0wUohHPNLh5sD7NC81EtDOHm/WZfx2C1G NAWsWkDPntxUpUcuSm+3nl3zDoPYPSMRiztwbWvm0BEdpn2uDyO0v5fMWdenpvMN sn7wkuMaTlQ= =OLQP -----END PGP SIGNATURE-----