{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47325","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:28:16.974Z","datePublished":"2024-05-21T14:35:38.498Z","dateUpdated":"2025-12-18T11:36:45.815Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-12-18T11:36:45.815Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation\n\nThe reference counting issue happens in several exception handling paths\nof arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the\nfunction forgets to decrease the refcount of \"smmu\" increased by\narm_smmu_rpm_get(), causing a refcount leak.\n\nFix this issue by jumping to \"out\" label when those error scenarios\noccur."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/arm/arm-smmu/arm-smmu.c"],"versions":[{"version":"d4a44f0750bb9bf7c44c22444a482756b2344a79","lessThan":"b11220803ad14a2a880cc06d8e01fe2548cc85b0","status":"affected","versionType":"git"},{"version":"d4a44f0750bb9bf7c44c22444a482756b2344a79","lessThan":"43d1aaa1965f9b58035196dac49b1e1e6c9c25eb","status":"affected","versionType":"git"},{"version":"d4a44f0750bb9bf7c44c22444a482756b2344a79","lessThan":"0f0c5ea09139777d90729d408b807021f2ea6492","status":"affected","versionType":"git"},{"version":"d4a44f0750bb9bf7c44c22444a482756b2344a79","lessThan":"5f9741a9a91f25c89e04b408cd61e3ab050ce24b","status":"affected","versionType":"git"},{"version":"d4a44f0750bb9bf7c44c22444a482756b2344a79","lessThan":"7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554","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/iommu/arm/arm-smmu/arm-smmu.c"],"versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"5.4.134","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.52","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.12.19","lessThanOrEqual":"5.12.*","status":"unaffected","versionType":"semver"},{"version":"5.13.4","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":"5.0","versionEndExcluding":"5.4.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.10.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.12.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.13.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0"},{"url":"https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb"},{"url":"https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492"},{"url":"https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b"},{"url":"https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554"}],"title":"iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47325","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-21T17:39:49.383659Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:14:36.867Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:08.511Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554","tags":["x_transferred"]}]}]}}