CVE-2021-47470

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47470", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-22T06:20:56.199Z", "datePublished": "2024-05-22T06:23:28.263Z", "dateUpdated": "2026-05-11T13:55:19.579Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:55:19.579Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm, slub: fix potential use-after-free in slab_debugfs_fops\n\nWhen sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s\nbecause s will be freed soon. And slab_debugfs_fops will use s later\nleading to a use-after-free."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/slub.c"], "versions": [{"version": "64dd68497be76ab4e237cca06f5324e220d0f050", "lessThan": "159d8cfbd0428d487c53be4722f33cdab0d25d83", "status": "affected", "versionType": "git"}, {"version": "64dd68497be76ab4e237cca06f5324e220d0f050", "lessThan": "67823a544414def2a36c212abadb55b23bcda00c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/slub.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.14.15", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15", "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": "5.14", "versionEndExcluding": "5.14.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"}, {"url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"}], "title": "mm, slub: fix potential use-after-free in slab_debugfs_fops", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.395Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47470", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:36:05.363526Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:53.419Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.395Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47470", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:36:05.363526Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:13.267Z"}}], "cna": {"title": "mm, slub: fix potential use-after-free in slab_debugfs_fops", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "64dd68497be76ab4e237cca06f5324e220d0f050", "lessThan": "159d8cfbd0428d487c53be4722f33cdab0d25d83", "versionType": "git"}, {"status": "affected", "version": "64dd68497be76ab4e237cca06f5324e220d0f050", "lessThan": "67823a544414def2a36c212abadb55b23bcda00c", "versionType": "git"}], "programFiles": ["mm/slub.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"status": "unaffected", "version": "0", "lessThan": "5.14", "versionType": "semver"}, {"status": "unaffected", "version": "5.14.15", "versionType": "semver", "lessThanOrEqual": "5.14.*"}, {"status": "unaffected", "version": "5.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["mm/slub.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"}, {"url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm, slub: fix potential use-after-free in slab_debugfs_fops\n\nWhen sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s\nbecause s will be freed soon. And slab_debugfs_fops will use s later\nleading to a use-after-free."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.14.15", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15", "versionStartIncluding": "5.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:11:39.369Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47470", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:11:39.369Z", "dateReserved": "2024-05-22T06:20:56.199Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-22T06:23:28.263Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["mm/slub.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "159d8cfbd0428d487c53be4722f33cdab0d25d83", "status": "affected", "version": "64dd68497be76ab4e237cca06f5324e220d0f050", "versionType": "git"}, {"lessThan": "67823a544414def2a36c212abadb55b23bcda00c", "status": "affected", "version": "64dd68497be76ab4e237cca06f5324e220d0f050", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["mm/slub.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"lessThan": "5.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.14.*", "status": "unaffected", "version": "5.14.15", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7B0C1B4E-5CC9-4DDA-BCEF-02A0A22BBE53", "versionEndExcluding": "5.14.15", "versionStartIncluding": "5.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*", "matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*", "matchCriteriaId": "9E9481B2-8AA6-4CBD-B5D3-C10F51FF6D01", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*", "matchCriteriaId": "EBD45831-4B79-42BC-ABC0-86870F0DEA89", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm, slub: fix potential use-after-free in slab_debugfs_fops\n\nWhen sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s\nbecause s will be freed soon. And slab_debugfs_fops will use s later\nleading to a use-after-free."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm, slub: corrige el posible use-after-free en slab_debugfs_fops Cuando sysfs_slab_add falla, no debemos llamar a debugfs_slab_add() para s porque s se liberar\u00e1 pronto. Y slab_debugfs_fops usar\u00e1 s m\u00e1s tarde, lo que conducir\u00e1 a un use-after-free."}], "id": "CVE-2021-47470", "lastModified": "2026-06-17T04:17:32.923", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47470", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:36:05.363526Z", "version": "2.0.3"}}]}, "published": "2024-05-22T07:15:11.763", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm, slub: fix potential use-after-free in slab_debugfs_fops", "id": "2282885", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282885"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm, slub: fix potential use-after-free in slab_debugfs_fops\nWhen sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s\nbecause s will be freed soon. And slab_debugfs_fops will use s later\nleading to a use-after-free."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2021-47470", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47470\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47470\nhttps://lore.kernel.org/linux-cve-announce/2024052228-CVE-2021-47470-094f@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}