Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754810AbaDKSUf (ORCPT ); Fri, 11 Apr 2014 14:20:35 -0400 Received: from terminus.zytor.com ([198.137.202.10]:46048 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754743AbaDKSUc (ORCPT ); Fri, 11 Apr 2014 14:20:32 -0400 Message-ID: <53483260.2020308@zytor.com> Date: Fri, 11 Apr 2014 11:20:16 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Andy Lutomirski , mingo@kernel.org, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, tglx@linutronix.de, stable@vger.kernel.org, hpa@linux.intel.com, linux-tip-commits@vger.kernel.org Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels References: <53483088.1010407@amacapital.net> In-Reply-To: <53483088.1010407@amacapital.net> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/11/2014 11:12 AM, Andy Lutomirski wrote: > > If this is what I think it is (hi, Spender), then it is probably only > useful for 3.14.y and not earlier kernels. > Not really. The kernel stack address is sensitive regardless of kASLR; in fact, it is completely orthogonal to kASLR. -hpa -- 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/