From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: kvm ptrace 32bit DoS bug - bisected Date: Sun, 18 Oct 2009 15:50:38 +0900 Message-ID: <4ADABABE.9000601@redhat.com> References: <4AA26A86.8060908@nagafix.co.uk> <20090905204336.GA6991@amt.cnet> <4AA366AA.7010806@nagafix.co.uk> <4AA369A8.3040008@nagafix.co.uk> <20090908163312.GA18155@amt.cnet> <4AA68C1F.1010704@web.de> <4AD9C59E.7000100@nagafix.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jan Kiszka , Marcelo Tosatti , "kvm@vger.kernel.org" , Roland McGrath To: Antoine Martin Return-path: Received: from mx1.redhat.com ([209.132.183.28]:14160 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751536AbZJRGuo (ORCPT ); Sun, 18 Oct 2009 02:50:44 -0400 In-Reply-To: <4AD9C59E.7000100@nagafix.co.uk> Sender: kvm-owner@vger.kernel.org List-ID: On 10/17/2009 10:24 PM, Antoine Martin wrote: > >> Easy to check: Does the UML image still contain mov-to-db instructions? >> If not, this commit cannot make the difference. >> > I'd be happy to grep it if you give me the mov-to-db opcode. > > 0f 21 and 0f 23. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.