{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53219","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-15T14:19:21.845Z","datePublished":"2025-09-15T14:21:47.459Z","dateUpdated":"2026-05-11T19:40:34.034Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:40:34.034Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: netup_unidvb: fix use-after-free at del_timer()\n\nWhen Universal DVB card is detaching, netup_unidvb_dma_fini()\nuses del_timer() to stop dma->timeout timer. But when timer\nhandler netup_unidvb_dma_timeout() is running, del_timer()\ncould not stop it. As a result, the use-after-free bug could\nhappen. The process is shown below:\n\n    (cleanup routine)          |        (timer routine)\n                               | mod_timer(&dev->tx_sim_timer, ..)\nnetup_unidvb_finidev()         | (wait a time)\n  netup_unidvb_dma_fini()      | netup_unidvb_dma_timeout()\n    del_timer(&dma->timeout);  |\n                               |   ndev->pci_dev->dev //USE\n\nFix by changing del_timer() to del_timer_sync()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/pci/netup_unidvb/netup_unidvb_core.c"],"versions":[{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"dd5c77814f290b353917df329f36de1472d47154","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"90229e9ee957d4514425e4a4d82c50ab5d57ac4d","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"1550bcf2983ae1220cc8ab899a39a423fa7cb523","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"f9982db735a8495eee14267cf193c806b957e942","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"07821524f67bf920342bc84ae8b3dea2a315a89e","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc","status":"affected","versionType":"git"},{"version":"52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e","lessThan":"0f5bb36bf9b39a2a96e730bf4455095b50713f63","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/media/pci/netup_unidvb/netup_unidvb_core.c"],"versions":[{"version":"4.3","status":"affected"},{"version":"0","lessThan":"4.3","status":"unaffected","versionType":"semver"},{"version":"4.14.316","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.284","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.244","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.181","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.113","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.30","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.3.4","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","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":"4.3","versionEndExcluding":"4.14.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"4.19.284"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.15.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.1.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.3.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154"},{"url":"https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d"},{"url":"https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523"},{"url":"https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942"},{"url":"https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3"},{"url":"https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e"},{"url":"https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc"},{"url":"https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63"}],"title":"media: netup_unidvb: fix use-after-free at del_timer()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2023-53219","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-01-14T17:49:56.699110Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-416","description":"CWE-416 Use After Free"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-14T17:52:58.312Z"}}]}}