Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1167966AbcKAIN0 (ORCPT ); Tue, 1 Nov 2016 04:13:26 -0400 Received: from gruss.cc ([80.82.209.135]:34295 "EHLO mail.gruss.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1167918AbcKAINY (ORCPT ); Tue, 1 Nov 2016 04:13:24 -0400 Subject: Re: [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses] To: kernel-hardening@lists.openwall.com, Ingo Molnar References: <20161027082801.GE3568@worktop.programming.kicks-ass.net> <20161027091104.GB19469@amd> <20161027093334.GK3102@twins.programming.kicks-ass.net> <20161027212747.GA18147@amd> <20161028095141.GA5806@leverpostej> <20161028112136.GA5635@amd> <20161028140522.GH5806@leverpostej> <20161031082705.GA2863@amd> <20161101063359.GA27822@gmail.com> <20161101081043.GA27659@amd> Cc: Mark Rutland , Kees Cook , Peter Zijlstra , Arnaldo Carvalho de Melo , kernel list , Ingo Molnar , Alexander Shishkin From: Daniel Gruss Message-ID: <1edd96a2-b5fb-8131-4042-7410833dd0dd@gruss.cc> Date: Tue, 1 Nov 2016 09:13:20 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20161101081043.GA27659@amd> Content-Type: text/plain; charset=windows-1252; 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: 442 Lines: 13 On 01.11.2016 09:10, Pavel Machek wrote: > cpu family : 6 > model : 23 > model name : Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz > stepping : 10 > microcode : 0xa07 > > so rowhammerjs/native is not available for this system. Bit mapping > for memory hash functions would need to be reverse engineered for more > effective attack. By coincidence, we wrote a tool to do that in software: https://github.com/IAIK/drama ;)