{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47235","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-04-10T18:59:19.531Z","datePublished":"2024-05-21T14:19:37.070Z","dateUpdated":"2025-05-04T07:06:51.851Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:06:51.851Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: fix potential use-after-free in ec_bhf_remove\n\nstatic void ec_bhf_remove(struct pci_dev *dev)\n{\n...\n\tstruct ec_bhf_priv *priv = netdev_priv(net_dev);\n\n\tunregister_netdev(net_dev);\n\tfree_netdev(net_dev);\n\n\tpci_iounmap(dev, priv->dma_io);\n\tpci_iounmap(dev, priv->io);\n...\n}\n\npriv is netdev private data, but it is used\nafter free_netdev(). It can cause use-after-free when accessing priv\npointer. So, fix it by moving free_netdev() after pci_iounmap()\ncalls."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ec_bhf.c"],"versions":[{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"db2bc3cfd2bc01621014d4f17cdfc74611f339c8","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"1cafc540b7bf1b6a5a77dc000205fe337ef6eba6","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"b1ad283755095a4b9d1431aeb357d7df1a33d3bb","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"0260916843cc74f3906acf8b6f256693e01530a2","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"19f88ca68ccf8771276a606765239b167654f84a","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"95deeb29d831e2fae608439e243e7a520611e7ea","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"d11d79e52ba080ee567cb7d7eb42a5ade60a8130","status":"affected","versionType":"git"},{"version":"6af55ff52b02d492d45db88df3e461fa51a6f753","lessThan":"9cca0c2d70149160407bda9a9446ce0c29b6e6c6","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ec_bhf.c"],"versions":[{"version":"3.15","status":"affected"},{"version":"0","lessThan":"3.15","status":"unaffected","versionType":"semver"},{"version":"4.4.274","lessThanOrEqual":"4.4.*","status":"unaffected","versionType":"semver"},{"version":"4.9.274","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.238","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.196","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.128","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.46","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.12.13","lessThanOrEqual":"5.12.*","status":"unaffected","versionType":"semver"},{"version":"5.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"4.4.274"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"4.9.274"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"4.14.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"4.19.196"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"5.4.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"5.10.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"5.12.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.15","versionEndExcluding":"5.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/db2bc3cfd2bc01621014d4f17cdfc74611f339c8"},{"url":"https://git.kernel.org/stable/c/1cafc540b7bf1b6a5a77dc000205fe337ef6eba6"},{"url":"https://git.kernel.org/stable/c/b1ad283755095a4b9d1431aeb357d7df1a33d3bb"},{"url":"https://git.kernel.org/stable/c/0260916843cc74f3906acf8b6f256693e01530a2"},{"url":"https://git.kernel.org/stable/c/19f88ca68ccf8771276a606765239b167654f84a"},{"url":"https://git.kernel.org/stable/c/95deeb29d831e2fae608439e243e7a520611e7ea"},{"url":"https://git.kernel.org/stable/c/d11d79e52ba080ee567cb7d7eb42a5ade60a8130"},{"url":"https://git.kernel.org/stable/c/9cca0c2d70149160407bda9a9446ce0c29b6e6c6"}],"title":"net: ethernet: fix potential use-after-free in ec_bhf_remove","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-17T17:38:04.934934Z","id":"CVE-2021-47235","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-17T17:40:03.824Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:07.501Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/db2bc3cfd2bc01621014d4f17cdfc74611f339c8","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1cafc540b7bf1b6a5a77dc000205fe337ef6eba6","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b1ad283755095a4b9d1431aeb357d7df1a33d3bb","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/0260916843cc74f3906acf8b6f256693e01530a2","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/19f88ca68ccf8771276a606765239b167654f84a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/95deeb29d831e2fae608439e243e7a520611e7ea","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d11d79e52ba080ee567cb7d7eb42a5ade60a8130","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9cca0c2d70149160407bda9a9446ce0c29b6e6c6","tags":["x_transferred"]}]}]}}