{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47538","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-24T15:02:54.828Z","datePublished":"2024-05-24T15:09:45.959Z","dateUpdated":"2025-05-04T12:41:39.406Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:41:39.406Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()\n\nNeed to call rxrpc_put_local() for peer candidate before kfree() as it\nholds a ref to rxrpc_local.\n\n[DH: v2: Changed to abstract the peer freeing code out into a function]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rxrpc/peer_object.c"],"versions":[{"version":"e8e51ce79c157188e209e5ea0afaf6b42dd76104","lessThan":"913c24af2d13a3fd304462916ee98e298d56bdce","status":"affected","versionType":"git"},{"version":"9ebeddef58c41bd700419cdcece24cf64ce32276","lessThan":"3e70e3a72d80b16094faccbe438cd53761c3503a","status":"affected","versionType":"git"},{"version":"9ebeddef58c41bd700419cdcece24cf64ce32276","lessThan":"60f0b9c42cb80833a03ca57c1c8b078d716e71d1","status":"affected","versionType":"git"},{"version":"9ebeddef58c41bd700419cdcece24cf64ce32276","lessThan":"9469273e616ca8f1b6e3773c5019f21b4c8d828c","status":"affected","versionType":"git"},{"version":"9ebeddef58c41bd700419cdcece24cf64ce32276","lessThan":"beacff50edbd6c9659a6f15fc7f6126909fade29","status":"affected","versionType":"git"},{"version":"9b7fc03b4cdbfb668b6891967105258691c6d3b5","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rxrpc/peer_object.c"],"versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","status":"unaffected","versionType":"semver"},{"version":"4.19.220","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.164","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.84","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.7","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":"4.19.82","versionEndExcluding":"4.19.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.4.164"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce"},{"url":"https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a"},{"url":"https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1"},{"url":"https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c"},{"url":"https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29"}],"title":"rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47538","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-24T19:15:07.366329Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:14:56.132Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.621Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29","tags":["x_transferred"]}]}]}}