From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755486AbZBTHRA (ORCPT ); Fri, 20 Feb 2009 02:17:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752358AbZBTHQv (ORCPT ); Fri, 20 Feb 2009 02:16:51 -0500 Received: from hera.kernel.org ([140.211.167.34]:59288 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752081AbZBTHQu (ORCPT ); Fri, 20 Feb 2009 02:16:50 -0500 Message-ID: <499E58CB.1000005@kernel.org> Date: Fri, 20 Feb 2009 16:16:27 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.19 (X11/20081227) MIME-Version: 1.0 To: rusty@rustcorp.com.au, tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, jeremy@goop.org, cpw@sgi.com, mingo@elte.hu Subject: Re: [PATCH 02/10] module: fix out-of-range memory access References: <1234958676-27618-1-git-send-email-tj@kernel.org> <1234958676-27618-3-git-send-email-tj@kernel.org> In-Reply-To: <1234958676-27618-3-git-send-email-tj@kernel.org> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Fri, 20 Feb 2009 07:16:31 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tejun Heo wrote: > Impact: subtle memory access bug fix > > percpu_modalloc() may access pcpu_size[-1]. The access won't change > the value by itself but it still is read/write access and dangerous. > Fix it. > > Signed-off-by: Tejun Heo Dropped as this can never happen. -- tejun