Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932240AbcCJUyD (ORCPT ); Thu, 10 Mar 2016 15:54:03 -0500 Received: from mga03.intel.com ([134.134.136.65]:57380 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932106AbcCJUyB (ORCPT ); Thu, 10 Mar 2016 15:54:01 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,317,1455004800"; d="scan'208";a="667257544" Subject: Re: [PATCH] x86: Enable full randomization on i386 and X86_32. To: Kees Cook , Hector Marco-Gisbert References: <1457639460-5242-1-git-send-email-hecmargi@upv.es> Cc: LKML , Andrew Morton , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , "x86@kernel.org" , Ismael Ripoll Ripoll , Harvey Harrison From: Arjan van de Ven Message-ID: <56E1DEE6.5040306@linux.intel.com> Date: Thu, 10 Mar 2016 12:53:58 -0800 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 402 Lines: 10 > Arjan, or other folks, can you remember why x86_32 disabled mmap > randomization here? There doesn't seem to be a good reason for it that > I see. for unlimited stack it got really messy with threaded apps. anyway, I don't mind seeing if this will indeed work, with time running out where 32 bit is going extinct... in a few years we just won't have enough testing on this kind of change anymore.