{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80756",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.791Z",
        "datePublished": "2026-09-03T08:26:34.396Z",
        "dateUpdated": "2026-09-03T08:26:34.396Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-03T08:26:34.396Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: do not cancel a policy conversion that never started\n\nsel_write_load() calls selinux_policy_cancel() when sel_make_policy_nodes()\nfails, and that helper dereferences the outgoing policy to cancel its\nsidtab conversion. On the first policy load there is no outgoing policy:\nsecurity_load_policy() returns early for that case, before it converts\nanything, and state->policy is still NULL. A first load that fails while\nbuilding the selinuxfs tree therefore takes a NULL dereference in\nselinux_policy_cancel(), reached from a write(2) to /sys/fs/selinux/load.\n\nSkip the cancel when there is no old policy, mirroring the check\nsecurity_load_policy() already makes before it converts."
                }
            ],
            "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": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "2d29983104f06f5b0babcd5a25a0f0408272cd27",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "a4f182f8715cb0819445f0850cd5436828f4bafc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "1059789ae9f99cbbe3a78e361e9c0976beb5958b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "1acc317d67a755a45e32419a15d70e403fa43f0e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "a42932c6aa33d0aac683cacdf1ec7009b955ba5d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "1b4ff94ae7c580c880291519fb0e3e2bd075beef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "219c96de5d9b6b4af7e8576ad897b774cc3ee9a7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "02a52c5c8c3b8cbad0f12009cde9f36dbefb6972",
                            "lessThan": "e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e",
                            "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": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "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": "5.10",
                                    "versionEndExcluding": "5.10.266"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.15.217"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.1.184"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.6.153"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.12.105"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.18.46"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.1.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2d29983104f06f5b0babcd5a25a0f0408272cd27"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a4f182f8715cb0819445f0850cd5436828f4bafc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1059789ae9f99cbbe3a78e361e9c0976beb5958b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1acc317d67a755a45e32419a15d70e403fa43f0e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a42932c6aa33d0aac683cacdf1ec7009b955ba5d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b4ff94ae7c580c880291519fb0e3e2bd075beef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/219c96de5d9b6b4af7e8576ad897b774cc3ee9a7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e"
                }
            ],
            "title": "selinux: do not cancel a policy conversion that never started",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}