From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753832AbbCSNE1 (ORCPT ); Thu, 19 Mar 2015 09:04:27 -0400 Received: from cantor2.suse.de ([195.135.220.15]:35239 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751381AbbCSNE0 (ORCPT ); Thu, 19 Mar 2015 09:04:26 -0400 Message-ID: <550AC958.9010502@suse.cz> Date: Thu, 19 Mar 2015 14:04:24 +0100 From: Vlastimil Babka User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Konstantin Khlebnikov , "Kirill A. Shutemov" , Konstantin Khlebnikov CC: linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" , Andrew Morton , Linus Torvalds , Andy Lutomirski Subject: Re: [PATCH RFC] mm: protect suid binaries against rowhammer with copy-on-read mappings References: <20150318083040.7838.76933.stgit@zurg> <20150318095702.GA2479@node.dhcp.inet.fi> <5509644C.40502@yandex-team.ru> In-Reply-To: <5509644C.40502@yandex-team.ru> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/18/2015 12:41 PM, Konstantin Khlebnikov wrote: > On 18.03.2015 12:57, Kirill A. Shutemov wrote: >> >> I don't think it worth it. The only right way to fix the problem is ECC >> memory. >> > > ECC seems good protection until somebody figure out how to break it too. I doubt that kind of attitude can get us very far. If we can't trust the hardware, we lose sooner or later.