{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47211","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-04-10T18:59:19.526Z","datePublished":"2024-04-10T19:01:52.636Z","dateUpdated":"2025-12-18T11:36:13.017Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-12-18T11:36:13.017Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: fix null pointer dereference on pointer cs_desc\n\nThe pointer cs_desc return from snd_usb_find_clock_source could\nbe null, so there is a potential null pointer dereference issue.\nFix this by adding a null check before dereference."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/clock.c"],"versions":[{"version":"1dc669fed61a4ec4270a89e5fb3535802cc45668","lessThan":"58fa50de595f152900594c28ec9915c169643739","status":"affected","versionType":"git"},{"version":"1dc669fed61a4ec4270a89e5fb3535802cc45668","lessThan":"b97053df0f04747c3c1e021ecbe99db675342954","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/clock.c"],"versions":[{"version":"3.10","status":"affected"},{"version":"0","lessThan":"3.10","status":"unaffected","versionType":"semver"},{"version":"5.15.5","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","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":"3.10","versionEndExcluding":"5.15.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739"},{"url":"https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954"}],"title":"ALSA: usb-audio: fix null pointer dereference on pointer cs_desc","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-21T16:04:02.891188Z","id":"CVE-2021-47211","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":"2024-06-21T16:04:10.989Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:07.365Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954","tags":["x_transferred"]}]}]}}