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h=X-UI-Sender-Class:To:Cc:Subject:From:Date; b=jT8m11dTEEeH5QhiWWRLD6oa6ZwiX7g0uMKfDJx/jG5hsBIV9XW+go3Fl4SjN5XO/ YjgfiNS5kz44B9dYjLKXf6wLGj33hwZXSYSrlvMrWb996s4nE7npd4MjH1LODbWBsO 8uERkV7g+1t78IO8aYelceDcWCvOspfOoYeQOmZk= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.49.116.236]) by smtp.web.de (mrweb102 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MZUWH-1jNfdK1x9x-00LEpo; Mon, 08 Jun 2020 11:48:31 +0200 To: Christoph Hellwig , Jason Yan , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: hulkci@huawei.com, linux-kernel@vger.kernel.org, Al Viro , Dan Carpenter , Jan Kara , Jens Axboe , Matthew Wilcox , Ming Lei , Sedat Dilek Subject: Re: [PATCH v4] block: Fix use-after-free in blkdev_get() From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: <1612c34d-cd28-b80c-7296-5e17276a6596@web.de> Date: Mon, 8 Jun 2020 11:48:24 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:B+MuEzlT+1aT+Ll+008LUVKbn2mDNk507K37ypy/kCpWohG9L9L M+RDYntpOkH+3xGeFGD5BVBYlPB2XD4v8Her+Ok8GkOfBUigzDBHjk5hrxOJjXxPurG2ih9 GbAC3f4YtrUUyB/SXTEPU+eAA60uY7oJsT6KY3kN2lQzUiOnLgVy511gt2BOSoQbuTw5+12 OPrZwwoKmrf663Z5ZNBHg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:vQ61dujnjZ4=:l8lJZipZHgM0kGa221lFkq 8cVikUCsOCp3L7zMLhBF8149YrC0Z/o7s/l+QbuzHvAIcNV/yEeGpCMK5qYMl+0LD8tCd5YGa rnmHvoILzZBXXnRP6x11TfvrGOVyFl5qprSZASF3Uts9nAggQBof32wPyHI8WozLztMKAa5Er olL4+Fv98+2kzEwZtTI/HX+Jfdk65pB4St2AS5ECoEZCwhitqYebz9L3z54HLgKBS8EvJwNG4 rS3wYYtY3tqMUKcalDfYY3aX+cHN4dFWMh1dIKO6K8p32cBMy7D7m3xfEBjYQLz2AnnyeTnF7 sY2cvGQI5vS+SoGuTFu1cZlcoyo+3eTWfq++mfu4WZTEuE2Ljx0zE3DmbwJunvyrztqJTiPPx GFXOQDdidsFYmZ66TFTem9LPgablqasRG9meq9OIOtmDoJiXrTkAd2DrRhPC09//N8TzIkfla 86pxA5W3DKJQD4IzQLSVXkYTkmNXMGmM94s36Oi8DK/9NCzFZqpGDMgvWFWbt1JANtg2WAnID QHzkSKPaemsoa1sbR8LbXYZdK+aqWUj1cU7AjHjUlf5AEuj6JSRkHT3DvZvfbJS1LKWUteEe7 QKV6oFGw86Lh9jW22673BGVjel22I2OXe2+7W3EJmEDvMFkWjmMQe0zVoSYd4afUUgzOMEEwS DuqHlEdgJog15Ar1l9NQjUmZLhJH6O83/IQbBffoqYvad9v/D91c+o+pfY3/LfcSscjle4xj7 aHkPiJATV42jAWO/SWdEZasn0NA0dQPnjsEMZgRy6CvX8cMtUQWVrxOvDoQri8ROezOBGsflW 2FjahTChF4SAa+cN8nBEMJScWL/PhOKc2tZ3Ex5uNhu90akQ820eAz191r5c+lg4KK1Y8yDaI +dUTOotxlyAmbxVv6Idmb1y3Kk2COXxS9J6V1P6bMZztbasqYTJ0pZrx/d7ELJaHyP0b9ExUi iy5iA2LpRZZqoYeioUl7iNNN1o9q0+P4rHMSDkhoJgzTp1f1Ki2QCVUgLOvkjvYQMd02hqW8B YHbdMoLVl8SAVwxZo6CKD9ilBd1iUzke3EKWRUzWZRUEj139vc1b2R3cjH3iXSq9YhFbVrQME rR1kd4ucNJ/xNXsHDV6MH2oNvxN610dPHBXBwoEQ6yuQxvZO1owvXgUsiH3rlz6gcWDImFdjm y2wSNciO3iNghQjBiGd3qPJMEZWCLJi39rarnMNvEMpriHP8TapmBly/3QE4gCtb0TINRsNkK JiH9HGDqlnIb6Bvs7 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Looks good, > > Reviewed-by: Christoph Hellwig How does this feedback fit to remaining typos in the change description? Do you care for any further improvements of the commit message besides the discussed tag =E2=80=9CFixes=E2=80=9D? Regards, Markus