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t=1570798816; bh=NgL6zGAAGZZ/ba87NQfyScnMOpeIlLDG6n+WCdQWllw=; h=X-UI-Sender-Class:Cc:References:Subject:From:To:Date:In-Reply-To; b=TSvjsmsJ9/zaJgZBR+FGOQVMJwWrPE1bft7Xr5MP80M36XTh/EWnXk1RVLQca3kBM NGzbqm8AlWLwj35RBJ2N6spXbhL/xIVbfTfNzEoALZNxX+g91E0YAC72LrLOWRmD8Q SJpFZu6VufBZ66FBFQk0cziGIgEC/0oiwXfFWt9E= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([2.244.164.92]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0M8zOD-1iDdju3dVd-00CQTF; Fri, 11 Oct 2019 15:00:16 +0200 Cc: linux-kernel@vger.kernel.org References: <20190325212523.11799-1-pakki001@umn.edu> Subject: Re: [v3] thunderbolt: Fix to check the return value of kmemdup 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= To: Aditya Pakki , Andreas Noever , Kangjie Lu , Michael Jamet , Mika Westerberg , Yehezkel Bernat , kernel-janitors@vger.kernel.org Message-ID: Date: Fri, 11 Oct 2019 15:00:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20190325212523.11799-1-pakki001@umn.edu> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:0Qs05se5kp5/XXW7uyPGar13wVW2Imrz9QjdzEBUDILjZUhPyuH NEI2s/vW+JwNK7rqE8MVis1C/CnewOR7g8ANndHeKLQWaDF/Z7YGcZhVTpwurZ2T9uGd3M4 hAZp58RG87bswmkyObIW09bSmQizA7dkYSsUAPVN5DXmT2zACHMWBRmsvZfRGZewK2+wrDu 1FYgQCf0t1J9GbtO/IN/g== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:FyHqf6r6FPA=:U79YlzLpl3+o0bFhWP7G3Y uHTNDuOMGv0NB/LPilvNQEeJP09cby2o0dLxqnsR0htX+Nt4UU34QFYw2SWjC6iaxPZy5Ic8B J0jxbvrN3LGhzzT60lp5gW6gVsgekJYS/E3z50vaVnAi8hb4YVEPtOyTUJvviQtcJyzCZOQxt X/9RXj6XKi7tC7Uw/OQxkB8qVmYxMp1wHN2Ht1qRUayy8Q4yHM2wPCUPaNTbBT+/bAEc7yid7 V1KV4KvOxLvAcY8bR0Kk4ikBkGrXzqPiFKu7oLeg+2VlVnqpr9FRbDouUWrfBJwbfQCG3/faK JHF1bo8Z/rnzlgSXQgL/gu0Ybj6M4yoH4eEPu6S6l5GcBKiyDB0LOO2gzuPXZ0+P7dIpp1S2S 7cFvSfQ4oxWf0TJrOYStoj4eFvFtIsPqWaV1tMqsi+wXzKCTk8AkeNIRcxkc1R+7AOontofzj ro9OeJea24VJF5fGYX5RiPTilxiXB91KDdJrSkeMEN3fwZxwSxWrkAKuY8h2cw6AltA3AIilt Bafr7uggpzjzCqA5rYHn33y8bBD2nVC8pv2KQWx1L/yWP9gsK+AE1W1MuzJhWrBe43uCF3xt9 wsSzVy/TSGlug8uJWTma64GzOfXxZKUVYwFieIZx9uIE1C79IpfXTyCdIa2TcDmzRn6l9ekV5 8hPCgWiIUWgCNdRJ7jdI07WkOyhYSFGyB4Zelfe4fAlvKSiUsjMzkBbLAbKqHCPy/zSIF1rgR iol8mRFJlRxhmyEOFSwmMbVtDbgkMnsjSvLeTNbcSqQKA5GFQa0o+ecBxGKQLLs3pYQpJU+Jh G4KYlSKUg0rbI+fkYG1Eb9MnVnPVJB5z8xSHdBMYji451qSbpMxvO5N3CQHpOZojVkn1uh+9a 7PaQpgAvNhxXFtHGmAwyOACMFt+WSzWobiChhs45/LX3XodE4wWFJxrvKR1XTUV1oW+P4fpED OOaThMF7iS3ho3VU1tAuHGy4zbvX6pbVZQqyu9Gac7osNxD6HYyppFIiR6cdkv0mUy0w8xX9o sg5GRPMbHJcUt1Rik57pVdh3gZ7cq9C+dc53voYtglncvjqKsQYHxPBvcPmODUW7p74p++BnM NDOsf+GU0BELcpgA+FWr61V40ox7fuAVmo1Er/YKSFsfNh9hx3KaOaLTZeeNoIvef/o4VRDw+ kHljeDs5rfoSL7usLapCrUMczZ2+2xIaPpa02UeOT4l6JuDAJ594ejZyytIG4k5ZHGj/DMCQ1 keBtnpheIIBcZBTsdrYXViUgbNXoOINVhSWULDLIDe+1bdyJe+tBiqSAPH0E= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > uuid in add_switch is allocted via kmemdup which can fail. I have tried another script for the semantic patch language out. This source code analysis approach points out that the implementation of the function =E2=80=9Cicm_handle_event=E2=80=9D contains still an unche= cked call of the function =E2=80=9Ckmemdup=E2=80=9D. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/dr= ivers/thunderbolt/icm.c?id=3D3cdb9446a117d5d63af823bde6fe6babc312e77b#n162= 7 https://elixir.bootlin.com/linux/v5.4-rc2/source/drivers/thunderbolt/icm.c= #L1627 How do you think about to improve it? Regards, Markus