From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D4D2C55186 for ; Sat, 25 Apr 2020 07:59:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EC78920706 for ; Sat, 25 Apr 2020 07:59:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726359AbgDYH7K (ORCPT ); Sat, 25 Apr 2020 03:59:10 -0400 Received: from verein.lst.de ([213.95.11.211]:38961 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726035AbgDYH7J (ORCPT ); Sat, 25 Apr 2020 03:59:09 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id AC15E68C4E; Sat, 25 Apr 2020 09:59:06 +0200 (CEST) Date: Sat, 25 Apr 2020 09:59:06 +0200 From: Christoph Hellwig To: axboe@kernel.dk Cc: yuyufen@huawei.com, tj@kernel.org, jack@suse.cz, bvanassche@acm.org, tytso@mit.edu, hdegoede@redhat.com, gregkh@linuxfoundation.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: bdi: fix use-after-free for dev_name(bdi->dev) v3 Message-ID: <20200425075906.GA5250@lst.de> References: <20200422073851.303714-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200422073851.303714-1-hch@lst.de> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Any more comments? Are we ready to merge this now? On Wed, Apr 22, 2020 at 09:38:42AM +0200, Christoph Hellwig wrote: > Hi all, > > the first three patches are my take on the proposal from Yufen Yu > to fix the use after free of the device name of the bdi device. > > The rest is vaguely related cleanups. > > Changes since v2: > - switch vboxsf to a shorter bdi name > > Changes since v1: > - use a static dev_name buffer inside struct backing_dev_info ---end quoted text---