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 17B7CC352BE for ; Thu, 16 Apr 2020 15:30:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F355E21927 for ; Thu, 16 Apr 2020 15:30:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2505365AbgDPPaD (ORCPT ); Thu, 16 Apr 2020 11:30:03 -0400 Received: from verein.lst.de ([213.95.11.211]:52669 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2395180AbgDPP3u (ORCPT ); Thu, 16 Apr 2020 11:29:50 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id F038268BEB; Thu, 16 Apr 2020 17:29:46 +0200 (CEST) Date: Thu, 16 Apr 2020 17:29:46 +0200 From: Christoph Hellwig To: Jens Axboe Cc: Christoph Hellwig , yuyufen@huawei.com, tj@kernel.org, jack@suse.cz, bvanassche@acm.org, tytso@mit.edu, 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) Message-ID: <20200416152946.GA10845@lst.de> References: <20200416071519.807660-1-hch@lst.de> <874d57cb-90f1-db09-8f9d-29527451e241@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <874d57cb-90f1-db09-8f9d-29527451e241@kernel.dk> 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 On Thu, Apr 16, 2020 at 09:29:13AM -0600, Jens Axboe wrote: > On 4/16/20 1:15 AM, 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. > > Applied, thanks. Please hold back, we still have a major issues with it. I will resend a fixed version tomorrow.