CVE-2026-80912

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80912", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.801Z", "datePublished": "2026-09-04T17:19:23.066Z", "dateUpdated": "2026-09-14T11:58:53.633Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-14T11:58:53.633Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject an unclaimed class value in security_get_classes()\n\nsecurity_get_classes() sizes an array by p_classes.nprim and fills it at\nvalue - 1, so a class value the policy never defines leaves a NULL.\nsel_make_classes() passes every entry to sel_make_dir(), reaching the same\nd_alloc_name() dereference as the permission array. The class symbol table\nis allowed to be sparse (policydb_class_isvalid() exists to absorb that),\nbut this getter builds its own array straight from the hash table and has\nno such predicate.\n\nFail the lookup when a value went unclaimed instead of handing out the\nNULL. Conforming policies define every class they declare and are\nunaffected."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/selinux/ss/services.c"], "versions": [{"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "d2e7f7035d6f407119ba5467f7218cc4370844fc", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "f38a71868888285efc9c0ab5b032e23919c5a0a1", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "3480c081c23d559fd9a6921b76955664f2e95153", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "e0285bb152211c00900136b66d4b420c14a59094", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "099869e9343a5f8c22b58497f074b34f63cbf856", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "841aea4d5a25e16273d04cd07a74142b4687e03b", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "d8a10899ea3c84b80de72ca8ee9039e9a5156c9a", "status": "affected", "versionType": "git"}, {"version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "lessThan": "22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/selinux/ss/services.c"], "versions": [{"version": "2.6.23", "status": "affected"}, {"version": "0", "lessThan": "2.6.23", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.153", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.105", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "2.6.23", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "6.6.153"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "6.12.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.23", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d2e7f7035d6f407119ba5467f7218cc4370844fc"}, {"url": "https://git.kernel.org/stable/c/f38a71868888285efc9c0ab5b032e23919c5a0a1"}, {"url": "https://git.kernel.org/stable/c/3480c081c23d559fd9a6921b76955664f2e95153"}, {"url": "https://git.kernel.org/stable/c/e0285bb152211c00900136b66d4b420c14a59094"}, {"url": "https://git.kernel.org/stable/c/099869e9343a5f8c22b58497f074b34f63cbf856"}, {"url": "https://git.kernel.org/stable/c/841aea4d5a25e16273d04cd07a74142b4687e03b"}, {"url": "https://git.kernel.org/stable/c/d8a10899ea3c84b80de72ca8ee9039e9a5156c9a"}, {"url": "https://git.kernel.org/stable/c/22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd"}], "title": "selinux: reject an unclaimed class value in security_get_classes()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/selinux/ss/services.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d2e7f7035d6f407119ba5467f7218cc4370844fc", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "f38a71868888285efc9c0ab5b032e23919c5a0a1", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "3480c081c23d559fd9a6921b76955664f2e95153", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "e0285bb152211c00900136b66d4b420c14a59094", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "099869e9343a5f8c22b58497f074b34f63cbf856", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "841aea4d5a25e16273d04cd07a74142b4687e03b", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "d8a10899ea3c84b80de72ca8ee9039e9a5156c9a", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}, {"lessThan": "22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd", "status": "affected", "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/selinux/ss/services.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.23"}, {"lessThan": "2.6.23", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.153", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.105", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject an unclaimed class value in security_get_classes()\n\nsecurity_get_classes() sizes an array by p_classes.nprim and fills it at\nvalue - 1, so a class value the policy never defines leaves a NULL.\nsel_make_classes() passes every entry to sel_make_dir(), reaching the same\nd_alloc_name() dereference as the permission array. The class symbol table\nis allowed to be sparse (policydb_class_isvalid() exists to absorb that),\nbut this getter builds its own array straight from the hash table and has\nno such predicate.\n\nFail the lookup when a value went unclaimed instead of handing out the\nNULL. Conforming policies define every class they declare and are\nunaffected."}], "id": "CVE-2026-80912", "lastModified": "2026-09-14T13:18:48.763", "metrics": {}, "published": "2026-09-04T18:18:01.047", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/099869e9343a5f8c22b58497f074b34f63cbf856"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3480c081c23d559fd9a6921b76955664f2e95153"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/841aea4d5a25e16273d04cd07a74142b4687e03b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2e7f7035d6f407119ba5467f7218cc4370844fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d8a10899ea3c84b80de72ca8ee9039e9a5156c9a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0285bb152211c00900136b66d4b420c14a59094"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f38a71868888285efc9c0ab5b032e23919c5a0a1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55fcf09b3fe4325c9395ebbb0322a547a157ebc7,e0285bb152211c00900136b66d4b420c14a59094)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55fcf09b3fe4325c9395ebbb0322a547a157ebc7,099869e9343a5f8c22b58497f074b34f63cbf856)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55fcf09b3fe4325c9395ebbb0322a547a157ebc7,841aea4d5a25e16273d04cd07a74142b4687e03b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55fcf09b3fe4325c9395ebbb0322a547a157ebc7,d8a10899ea3c84b80de72ca8ee9039e9a5156c9a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55fcf09b3fe4325c9395ebbb0322a547a157ebc7,22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.23"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,2.6.23)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.153,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.105,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.46,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.10,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-04T20:45:17.472897+00:00", "updated": "2026-09-04T23:00:15.665549+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}