{
    "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"
            }
        }
    }
}