{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23367",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:46.003Z",
        "datePublished": "2026-03-25T10:27:49.068Z",
        "dateUpdated": "2026-05-11T22:05:30.219Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:05:30.219Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: radiotap: reject radiotap with unknown bits\n\nThe radiotap parser is currently only used with the radiotap\nnamespace (not with vendor namespaces), but if the undefined\nfield 18 is used, the alignment/size is unknown as well. In\nthis case, iterator->_next_ns_data isn't initialized (it's\nonly set for skipping vendor namespaces), and syzbot points\nout that we later compare against this uninitialized value.\n\nFix this by moving the rejection of unknown radiotap fields\ndown to after the in-namespace lookup, so it will really use\niterator->_next_ns_data only for vendor namespaces, even in\ncase undefined fields are present."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/wireless/radiotap.c"
                    ],
                    "versions": [
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "6f80f6a60f5d87e5de5fb2732751fce799991c24",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "d1d1d3c50095928624a95b67a6d7ccc3a18f2215",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "703fa979badbba83d31cd011606d060bfb8b0d1d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "129c8bb320a7cef692c78056ef8e89a2a12ba448",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "2a60c588d5d39ad187628f58395c776a97fd4323",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "2f8ceeba670610d66f77def32011f48de951d781",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "e664971759a0e5570b50c6592e58a7f97d55e992",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33e5a2f776e331dc8a4379b6efb660d38f182d96",
                            "lessThan": "c854758abe0b8d86f9c43dc060ff56a0ee5b31e0",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/wireless/radiotap.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.34",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.34",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.77",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.17",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.7",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "2.6.34",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.1.167"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.6.130"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.12.77"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.18.17"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "6.19.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.34",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1d1d3c50095928624a95b67a6d7ccc3a18f2215"
                },
                {
                    "url": "https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0"
                }
            ],
            "title": "wifi: radiotap: reject radiotap with unknown bits",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}