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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 35C2AC433E0 for ; Fri, 5 Jun 2020 11:49:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 100932070B for ; Fri, 5 Jun 2020 11:49:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="daE+BMqR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726482AbgFELtL (ORCPT ); Fri, 5 Jun 2020 07:49:11 -0400 Received: from mout.web.de ([212.227.15.14]:55495 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726314AbgFELtJ (ORCPT ); Fri, 5 Jun 2020 07:49:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1591357725; bh=YNFT3W4I68wx1XkHhFni77rj2hPxvVddydb8cu7DO9o=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=daE+BMqRpFRjN0dgKypNu6WW0o/+81qYrDOX3n3oli3L7Oqi5zs22ex155LBMU20o pmh64APWKWN7ky9U2Mr4S2eHkk2Pnvi1NKsT0a9tiMiXK8nZFyoykCcx8axWY5eEy8 Vd5pvbcJchM1ehh6RLsRvEXmdbH0jPa6/W1XO84A= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.131.102.114]) by smtp.web.de (mrweb005 [213.165.67.108]) with ESMTPSA (Nemesis) id 1MP384-1jK8jh0Pvg-00PJmf; Fri, 05 Jun 2020 13:48:45 +0200 Subject: Re: block: Fix use-after-free in blkdev_get() To: Matthew Wilcox , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: Dan Carpenter , Jason Yan , hulkci@huawei.com, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, Al Viro , Christoph Hellwig , Jan Kara , Jens Axboe , Ming Lei References: <88676ff2-cb7e-70ec-4421-ecf8318990b1@web.de> <5fa658bf-3028-9b5c-30cc-dbdef6bf8f7a@huawei.com> <20200605094353.GS30374@kadam> <2ee6f2f7-eaec-e748-bead-0ad59f4c378b@web.de> <20200605111049.GA19604@bombadil.infradead.org> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: <20200605111049.GA19604@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:bZ+hVVmU4XPXH+XKnHAH2xGaJwrtCqJlHTSItq4yaYzqHaMI9g2 W1CSjONn27C2Tfuhp5V2ume1kaV7tSuI9aM5PBouWO+qmqwP/dWWG4OcBS4+BHi/oT/Ri7E YsKT/bskw2flOCodpNSNDWqE4Sd8uWn74cDABHOHbDECvQjyduzVJWULdLFq05c5HQqi8Lt e7ptZXECO+UVIWfEFLaMQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:OrqltsMFwFc=:0j+EbyMb27QL99NCg5MdlA 0fzja0LrbVnUa8sBjMt2JGY+HIAS8jeT+MJxOqkdHkPAQJKF9MxVBjji9sSH6J0uZX7wJcBVg QC0BPrdjiN5x365BXpRk70HRljnh9GeNcotALM9VN1yrehgDhHsMdWaPaK5fU+aBQwEBeh/Rp UEuLj4klIXr8j+ozrPORdWR+hegX3Zja0D6lk8vN2C+/zeRWMogoTCrMbu4qV5O3uAD/A57/G 6BZ3uf/KJZ1Co0KRric0turluyDDC8ZtnYrDlkBuRcFePJqeXRprYQnPZKkr4EV5hUOQJEq2y /YgZqmJfFuJyBuLjUx5BtBIwholHVCT8FXhPuUT/oHnImMAjV0ydrF602HzIf2sdCKFKP0uvz Ygw5hv+T9zX9Hvu4slX/Ezuk7L/4zjtTPBzHQZfyE8eEGlOYC1h764eV/HzMHfFrYOI4lrlmS GFc6Bbu0T0cScXsuOLDeDzwIXxXvW6mpNEULhhu9Bh+s0DfqxYTotvddNV9EUu/HqmyjYP+wE NLw3kwhiGMjPb5EUxSfUd9tEmeLsNfQdF0UaDF9KAuk7oxcf89f/bxXiwD84al706sPe+adAr WIhH4LdgVM3CXv38IBUatbQUomOe3jF1i+4pVL2bn3ex1JkVCceL+b4qQtqHxGQiLr/zG0j1N 59vIXLLWv/FTKL/BsD5kn5DNmSOieH034Uxrml3w9s68xZeV1ifm83Ga1NzI6Eo357noqAkxY yyOG0hJnemNzyk5voly6/1nP2Kkj/TdFded63GwhTZvWwhGp2vz1AEXcoD/mQtOvxd+laab1q mZ6lhKvDgp39Cd/6cJo2avAZA2abvt6n7zTMqwem99Xg7gcZhQH8ERVD7TgaoI3itP2855KW5 Cn1QoO7oEdcMwVxPq3jmBmWZpu1gBqaE/aJ+t/5MHLxkh2mdz7aFR2RD7dveyMRQN3Tz2zmee mYB/Kaw64dOXZMGjysDGL+R48LV9brMCT5deO/3LM9OI4piuJEkD7F5Xgt8FtZdHI1Hj2InT4 JWXUpq2GBHz5ctg7XEvPL2kV3WZJj9hiMViQefWQ7RGHEPO0yJlAFb2Czvn7iedevGvR4WLSH 2SZyz4cgb41/rr782zdtYasMC6m2RU94o666HsG0bihE7YFscAbjQvQgIvGkYh8PNhxVv/n24 BquU5D4MGd29iTk/w4IsZOk0szJYhAuMtzLOPuzgomkjw+2qpmeHxExmIxxoGBIJc8jVRkkme twhVHzquFZZtvtqet Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> I am trying to contribute a bit of patch review as usual. > > Please stop criticising people's commit messages. Your suggestions > are usually not improvements. The details can vary also for my suggestions. Would you point any more disagreemnents out on concrete items? > But refcount -> reference count is not particularly interesting. Can a wording clarification become helpful also for this issue? Regards, Markus