Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758716AbXKTGtm (ORCPT ); Tue, 20 Nov 2007 01:49:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751663AbXKTGtf (ORCPT ); Tue, 20 Nov 2007 01:49:35 -0500 Received: from terminus.zytor.com ([198.137.202.10]:33926 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557AbXKTGte (ORCPT ); Tue, 20 Nov 2007 01:49:34 -0500 Message-ID: <4742831F.9040408@zytor.com> Date: Mon, 19 Nov 2007 22:47:59 -0800 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Herbert Xu CC: David Miller , xiyou.wangcong@gmail.com, goodmenkernel@gmail.com, linux-kernel@vger.kernel.org Subject: Re: Is there any word about this bug in gcc ? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 851 Lines: 21 Herbert Xu wrote: > David Miller wrote: >> Because the compiler knows things about the inputs and can >> thus apply optimizations that a static implementation in glibc >> that has to handle all forms of inputs cannot. > > On an unrelated note, I wonder if distros will be treating this > with the same level of urgency as security vulnerabilities, > especially in light of Shamir's recent note on maths errors. > This one is definitely messy. There is absolutely no way to know what gcc has miscompiled. It looks to me that both gcc 4.2 and 4.3 are affected, any others? -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/