{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47289","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T13:27:52.129Z","datePublished":"2024-05-21T14:35:14.740Z","dateUpdated":"2025-12-18T11:36:31.483Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-12-18T11:36:31.483Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: fix NULL pointer dereference\n\nCommit 71f642833284 (\"ACPI: utils: Fix reference counting in\nfor_each_acpi_dev_match()\") started doing \"acpi_dev_put()\" on a pointer\nthat was possibly NULL.  That fails miserably, because that helper\ninline function is not set up to handle that case.\n\nJust make acpi_dev_put() silently accept a NULL pointer, rather than\ncalling down to put_device() with an invalid offset off that NULL\npointer."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/acpi/acpi_bus.h"],"versions":[{"version":"fe066621c7966fe47fa17c6be6fd81adb3c0509f","lessThan":"38f54217b423c0101d03a00feec6fb8ec608b12e","status":"affected","versionType":"git"},{"version":"fe066621c7966fe47fa17c6be6fd81adb3c0509f","lessThan":"cae3fa3d8165761f3000f523b11cfa1cd35206bc","status":"affected","versionType":"git"},{"version":"fe066621c7966fe47fa17c6be6fd81adb3c0509f","lessThan":"ccf23a0888077a25a0793a746c3941db2a7562e4","status":"affected","versionType":"git"},{"version":"fe066621c7966fe47fa17c6be6fd81adb3c0509f","lessThan":"fc68f42aa737dc15e7665a4101d4168aadb8e4c4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/acpi/acpi_bus.h"],"versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","status":"unaffected","versionType":"semver"},{"version":"5.4.139","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.57","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.13.6","lessThanOrEqual":"5.13.*","status":"unaffected","versionType":"semver"},{"version":"5.14","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":"5.2","versionEndExcluding":"5.4.139"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.10.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.13.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e"},{"url":"https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc"},{"url":"https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4"},{"url":"https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4"}],"title":"ACPI: fix NULL pointer dereference","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:08.069Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47289","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T15:39:29.008509Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:33:10.100Z"}}]}}