{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80757",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.791Z",
        "datePublished": "2026-09-03T08:26:35.005Z",
        "dateUpdated": "2026-09-03T08:26:35.005Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-03T08:26:35.005Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject a class permission count below its inherited common\n\nsecurity_get_permissions() maps an inherited common's permissions into\nan array sized by the class's own permissions.nprim, but class_read()\ntakes that nprim verbatim from the policy image and never checks that it\ncovers the common.  A class that inherits a common of N permissions while\ndeclaring a smaller nprim is accepted, and on load the common's\npermissions are written past the class-sized array -- an out-of-bounds\nheap write.\n\nReject a class whose permission count is below its inherited common's.\nWell-formed policies, where the class count already includes the\ninherited permissions, are unaffected."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/selinux/ss/policydb.c"
                    ],
                    "versions": [
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "2002ff745db64ac83ee1bb9ff78196d2d68bfdb3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "38d91446630a20ce8c2a981810deea81fd61a3b5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "638213f2e6ea52c06a25861616781338d154db35",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "a63011c009ea79439b800a05602b880eb4adbb05",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "acd5b09be98fd38b7392307880156fb0452a7276",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "1b995966c3ae5244751bdaee9bfe7e17567d4fbe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7",
                            "lessThan": "9a82dcd98b6e6e11cfd162410967951f12152528",
                            "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/policydb.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.23",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.23",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.266",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.217",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.184",
                            "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": "5.10.266"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.23",
                                    "versionEndExcluding": "5.15.217"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.23",
                                    "versionEndExcluding": "6.1.184"
                                },
                                {
                                    "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/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05"
                },
                {
                    "url": "https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528"
                }
            ],
            "title": "selinux: reject a class permission count below its inherited common",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}