{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47071", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-29T22:33:44.297Z", "datePublished": "2024-03-01T21:15:10.052Z", "dateUpdated": "2025-05-04T07:03:35.325Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:03:35.325Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Fix a memory leak in error handling paths\n\nIf 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be\nupdated and 'hv_uio_cleanup()' in the error handling path will not be\nable to free the corresponding buffer.\n\nIn such a case, we need to free the buffer explicitly."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/uio/uio_hv_generic.c"], "versions": [{"version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "cdd91637d4ef33e2be19a8e16e72e7d00c996d76", "status": "affected", "versionType": "git"}, {"version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "d84b5e912212b05f6b5bde9f682046accfbe0354", "status": "affected", "versionType": "git"}, {"version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "53486c467e356e06aa37047c984fccd64d78c827", "status": "affected", "versionType": "git"}, {"version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "3ee098f96b8b6c1a98f7f97915f8873164e6af9d", "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/uio/uio_hv_generic.c"], "versions": [{"version": "4.20", "status": "affected"}, {"version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.122", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.40", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.7", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "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": "4.20", "versionEndExcluding": "5.4.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.10.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.12.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76"}, {"url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354"}, {"url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827"}, {"url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d"}], "title": "uio_hv_generic: Fix a memory leak in error handling paths", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47071", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-04T14:40:01.877350Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:15:01.454Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.582Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.582Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47071", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-04T14:40:01.877350Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:14.651Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "uio_hv_generic: Fix a memory leak in error handling paths", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "cdd91637d4ef33e2be19a8e16e72e7d00c996d76", "versionType": "git"}, {"status": "affected", "version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "d84b5e912212b05f6b5bde9f682046accfbe0354", "versionType": "git"}, {"status": "affected", "version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "53486c467e356e06aa37047c984fccd64d78c827", "versionType": "git"}, {"status": "affected", "version": "cdfa835c6e5e87d145f9f632b58843de97509f2b", "lessThan": "3ee098f96b8b6c1a98f7f97915f8873164e6af9d", "versionType": "git"}], "programFiles": ["drivers/uio/uio_hv_generic.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.20"}, {"status": "unaffected", "version": "0", "lessThan": "4.20", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.122", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.40", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.12.7", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/uio/uio_hv_generic.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76"}, {"url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354"}, {"url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827"}, {"url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Fix a memory leak in error handling paths\n\nIf 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be\nupdated and 'hv_uio_cleanup()' in the error handling path will not be\nable to free the corresponding buffer.\n\nIn such a case, we need to free the buffer explicitly."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.122", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.40", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.12.7", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.13", "versionStartIncluding": "4.20"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:03:35.325Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47071", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:03:35.325Z", "dateReserved": "2024-02-29T22:33:44.297Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-03-01T21:15:10.052Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6530C9FA-EEF8-4821-9186-47F7A1FA3C1A", "versionEndExcluding": "5.4.122", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "69DD053C-277F-4A8C-9606-11A24F806D05", "versionEndExcluding": "5.10.40", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E8F2CE30-38B0-4716-B12B-A139B0F9C5C9", "versionEndExcluding": "5.12.7", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Fix a memory leak in error handling paths\n\nIf 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be\nupdated and 'hv_uio_cleanup()' in the error handling path will not be\nable to free the corresponding buffer.\n\nIn such a case, we need to free the buffer explicitly."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: uio_hv_generic: corrige una p\u00e9rdida de memoria en las rutas de manejo de errores. Si falla 'vmbus_establecer_gpadl()', (recv|send)_gpadl no se actualizar\u00e1 y aparecer\u00e1 'hv_uio_cleanup()' en el error La ruta de manejo no podr\u00e1 liberar el b\u00fafer correspondiente. En tal caso, necesitamos liberar el b\u00fafer expl\u00edcitamente."}], "id": "CVE-2021-47071", "lastModified": "2024-12-12T14:43:19.253", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-03-01T22:15:46.967", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: uio_hv_generic: Fix a memory leak in error handling paths", "id": "2267373", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267373"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nuio_hv_generic: Fix a memory leak in error handling paths\nIf 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be\nupdated and 'hv_uio_cleanup()' in the error handling path will not be\nable to free the corresponding buffer.\nIn such a case, we need to free the buffer explicitly."], "name": "CVE-2021-47071", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47071\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47071\nhttps://lore.kernel.org/linux-cve-announce/2024030141-CVE-2021-47071-cd46@gregkh/T/#u"], "threat_severity": "Low"}

{}