{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98891",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.378Z",
        "datePublished": "2026-10-23T11:37:51.588Z",
        "dateUpdated": "2026-10-26T06:56:16.835Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-26T06:56:16.835Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: validate deauth frame length before reason access\n\nieee80211_rx_mgmt_deauth() reads the deauth reason code before checking\nthat the fixed field is actually present in the received frame.\n\nValidate the deauth frame length first and only then read the reason\ncode."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac80211/mlme.c"
                    ],
                    "versions": [
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "51092dc769f021e9634474e1bd5a561da477fbdb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "80d1a110e9096b5bf41497f6b151154084862385",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "a78689e2beed200d4590318612c74ae25c9408cf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "7a5ef1fd654d0e90d59aa32c881789c8bcc4125a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "9df64ad43e1f2c036667bba2bf385e9d7b3af564",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c9c99f8938e41b878802d5d8481d6f7a212515b0",
                            "lessThan": "4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f",
                            "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/mac80211/mlme.c"
                    ],
                    "versions": [
                        {
                            "version": "4.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "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": "4.2",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "5.15.222"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/51092dc769f021e9634474e1bd5a561da477fbdb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/80d1a110e9096b5bf41497f6b151154084862385"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a78689e2beed200d4590318612c74ae25c9408cf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7a5ef1fd654d0e90d59aa32c881789c8bcc4125a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9df64ad43e1f2c036667bba2bf385e9d7b3af564"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f"
                }
            ],
            "title": "wifi: mac80211: validate deauth frame length before reason access",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}