From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752904Ab3B1XqX (ORCPT ); Thu, 28 Feb 2013 18:46:23 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:41505 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751223Ab3B1XqW (ORCPT ); Thu, 28 Feb 2013 18:46:22 -0500 Date: Thu, 28 Feb 2013 15:46:20 -0800 From: Andrew Morton To: Peter Hurley Cc: Stanislav Kinsbursky , linux-kernel@vger.kernel.org, Dave Jones Subject: Re: [PATCH 00/10] ipc MSG_COPY fixes Message-Id: <20130228154620.a6d87ad8.akpm@linux-foundation.org> In-Reply-To: <1361845307-12737-1-git-send-email-peter@hurleysoftware.com> References: <1361845307-12737-1-git-send-email-peter@hurleysoftware.com> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 25 Feb 2013 21:21:37 -0500 Peter Hurley wrote: > Over the weekend testing with trinity on KVM, I hit a similar oops > (pasted below) to what others have already reported here > http://lkml.indiana.edu/hypermail/linux/kernel/1302.2/01465.html > > While trying to uncover the underlying cause of the list corruption, > I uncovered two other bugs which are addressed in > ipc: Fix potential oops when src msg > 4k w/ MSG_COPY > ipc: Don't allocate a copy larger than max > > The other cleanup was incidental to trying to uncover the oops (so far > unsuccessfully). afacit, only the above two are needed in 3.9 and 3.8.x, agree? The changelog for "ipc: Don't allocate a copy larger than max" is rather poor - it doesn't actually describe the bug's effects, so people will have trouble understanding whether they need the patch in their kernels. Can you please send along some additional description of this one?