From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754428Ab3AKB30 (ORCPT ); Thu, 10 Jan 2013 20:29:26 -0500 Received: from mx1.redhat.com ([209.132.183.28]:56560 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752133Ab3AKB3Z (ORCPT ); Thu, 10 Jan 2013 20:29:25 -0500 Message-ID: <50EF6AF0.1020005@redhat.com> Date: Fri, 11 Jan 2013 09:29:20 +0800 From: Jason Wang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: David Miller CC: stefanha@redhat.com, mst@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3.8-rc] tuntap: refuse to re-attach to different tun_struct References: <1357804788-19976-1-git-send-email-stefanha@redhat.com> <20130110.143902.2166041015759450388.davem@davemloft.net> In-Reply-To: <20130110.143902.2166041015759450388.davem@davemloft.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/11/2013 06:39 AM, David Miller wrote: > From: Stefan Hajnoczi > Date: Thu, 10 Jan 2013 08:59:48 +0100 > >> Multiqueue tun devices support detaching a tun_file from its tun_struct >> and re-attaching at a later point in time. This allows users to disable >> a specific queue temporarily. >> >> ioctl(TUNSETIFF) allows the user to specify the network interface to >> attach by name. This means the user can attempt to attach to interface >> "B" after detaching from interface "A". >> >> The driver is not designed to support this so check we are re-attaching >> to the right tun_struct. Failure to do so may lead to oops. >> >> Signed-off-by: Stefan Hajnoczi > Applied. Hi David: Any chance that I can have a respin on this patch, there's still a bug after this patch. Or I just can send a patch on top? Thanks