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(unknown [109.105.118.54]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230628090917epsmtip1b4c769df6ba3c694345f8eba2e8568b2~sx4pgKZPP2088620886epsmtip1E; Wed, 28 Jun 2023 09:09:17 +0000 (GMT) From: Min Li To: hch@lst.de Cc: axboe@kernel.dk, dlemoal@kernel.org, gregkh@linuxfoundation.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, min15.li@samsung.com, stable@kernel.org, willy@infradead.org Subject: Re: [PATCH v3] block: add check that partition length needs to be aligned with block size Date: Wed, 28 Jun 2023 17:07:34 +0000 Message-Id: <20230628170734.2960-1-min15.li@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230628083839.GA26606@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrGJsWRmVeSWpSXmKPExsWy7bCmhu6G37NTDL7sE7BYfbefzeLBfnuL 5sXr2Szmvr7EYrFy9VEmi723tC0u75rDZrF8VQeTxdkJH1gtPp2/wGbx+8ccNgduj80rtDwu ny312LSqk81j/9w17B67bzawefRtWcXo8XmTXAB7VLZNRmpiSmqRQmpecn5KZl66rZJ3cLxz vKmZgaGuoaWFuZJCXmJuqq2Si0+ArltmDtCBSgpliTmlQKGAxOJiJX07m6L80pJUhYz84hJb pdSClJwCkwK94sTc4tK8dL281BIrQwMDI1OgwoTsjJsvljEXfGequL70KVMD4wKmLkZODgkB E4mbhxuZuxi5OIQEdjNKLDy7khXC+cQo8envKiYI5xujxJz9Z9hgWvbdvw+V2Mso8XHtGaj+ 54wSF5/PBHI4ONgElCW2LfUBMUUE+CRu3UoFKWEWOMAosfdlMyPIIGGBFInHv2azgNgsAqoS Bx7OAbuJV8BCYtmT+VDL5CX2HzzLDGJzCuhIrPhzFqpGUOLkzCdgvcxANc1bZ4PdICEwkUPi wrL1rCCLJQRcJF4sz4SYIyzx6vgWdghbSuJlfxs7REmxxMsfYRDhGond325Dg8VaYtv6dUwg JcwCmhLrd+lDhGUlpp5axwSxlU+i9/cTqHJeiR3zYGwlib8XzjFC2BISi/c/hDrGQ+J0ZzRI WEigXuLJgi9sExgVZiH5ZRaSX2YhLF7AyLyKUTK1oDg3PbXYtMAoL7UcHsPJ+bmbGMEJVstr B+PDBx/0DjEycTAeYpTgYFYS4b39ZnaKEG9KYmVValF+fFFpTmrxIUZTYGBPZJYSTc4Hpvi8 knhDE0sDEzMzMxNLYzNDJXHeZVd6U4QE0hNLUrNTUwtSi2D6mDg4pRqYLJ6Ea3pziOqJ3/qw ltn2nVfSlPnBTh+nxVyR4lt9yrlFn/VX4PKH1ut73mlfjrzmoJq1QZfxh4bE15f5N3MWyEU3 ZRhWpssyJ8VoWy5d17GwpmSayVwlv0Kbp1be5UqHDsxJiP0nxORWndf9bYpAXFNhoKScq2kh P7+Tz8mu/zp3nLo/iZzbImxgJDOtt2vFhdY9R7be+fTyZnr4und7zTYeiVW+wfU3KDKz5cKR Xutny3oj58TtWpJnWDWnLnnX1ceRZTPEWRKaf+kui9P17dzHzP1uRSHLHGHNIpspE96vcpiR e1DKr7nrvj3brx1uU3iUbh7QjePes97tQsDku4ffW7y8N9HO9Z3mBQ4lluKMREMt5qLiRACU /qJ/OQQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPLMWRmVeSWpSXmKPExsWy7bCSnO6+H7NTDJYe0rBYfbefzeLBfnuL 5sXr2Szmvr7EYrFy9VEmi723tC0u75rDZrF8VQeTxdkJH1gtPp2/wGbx+8ccNgduj80rtDwu ny312LSqk81j/9w17B67bzawefRtWcXo8XmTXAB7FJdNSmpOZllqkb5dAlfGzRfLmAu+M1Vc X/qUqYFxAVMXIyeHhICJxL7794FsLg4hgd2MEhe+PWKESEhInJ/3iw3CFpZY+e85O4gtJPCU UeLQFosuRg4ONgFliW1LfUBMEQE+iVu3UkHGMAucYpRo/3kerFxYIEni66K5YDaLgKrEgYdz wPbyClhILHsyH2q8vMT+g2eZQWxOAR2JFX/OMkGs0pb4+eg8K0S9oMTJmU9YQGxmoPrmrbOZ JzAKzEKSmoUktYCRaRWjZGpBcW56brFhgWFearlecWJucWleul5yfu4mRnAcaGnuYNy+6oPe IUYmDsZDjBIczEoivLffzE4R4k1JrKxKLcqPLyrNSS0+xCjNwaIkziv+ojdFSCA9sSQ1OzW1 ILUIJsvEwSnVwOSWy7d07sP2y7nLOP69VmVvtf3tu0GliEUnqfjxv8Yn7lfMX4v+04g5/Oeb /5rGe3N///va9EVbd5IVV3XzkbOPj81wOrBn4xzhf2WW3uUd9ZFhxasYYn1LkxamXPdeuej4 qgM3bi163Xl+7p8JyldrjDb6fHbL1ag5+vXyIbvMkKBj215Hyhcf+Lh9Spbw9685N27Mlefe 2SQ7ty/zRO7q4u/3D6zdlxa6TmU6v7b/26gPhWGCP++691VGKi731014JC6986Faubl0Udaf uVcyy2rN58+517HF6PXxHZE5SdefiH9puGWUWG73Pjn1AINLZ/CVFZET/pacXl0qrFElyVfF 6P7EQMdw/e4lORuVWIozEg21mIuKEwEpiPY38gIAAA== X-CMS-MailID: 20230628090918epcas5p3a5463f0fc421e435a363192e40d3f649 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230628090918epcas5p3a5463f0fc421e435a363192e40d3f649 References: <20230628083839.GA26606@lst.de> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Mon, Jun 28, 2023 at 04:48:36PM +0000, Christoph Hellwig wrote: > They are long long in the UAPI, which is weird but has been that way > for a long time. So I think we need checks for negative values > before they are shifted and converted to a sector_t. Do you mean that we need to check if p.start and p.length are negative? Thanks for your reply Min li