{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98823",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.372Z",
        "datePublished": "2026-10-18T15:49:15.473Z",
        "dateUpdated": "2026-10-21T12:57:14.823Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:57:14.823Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: preserve hidden-group beacon IE ownership\n\nA hidden-group probe-response entry borrows its beacon IEs from the\ngroup's beacon entry. cfg80211_update_assoc_bss_entry() can pass such\nan entry to cfg80211_update_known_bss() when merging scan entries\nafter a channel switch.\n\nCopying the borrowed beacon_ies into the associated entry gives the\nsame allocation two owners. Releasing the group's beacon entry can\nthen leave the associated entry pointing to freed IEs, which are\nfreed again when that entry is released.\n\nSkip beacon IE replacement when the source entry belongs to a hidden\ngroup. Preserve probe-response processing, the subsequent metadata\nupdates, and the existing rejection path for conflicting hidden\nbeacon updates."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/wireless/scan.c"
                    ],
                    "versions": [
                        {
                            "version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
                            "lessThan": "5617d5328839003c91007ce906b4f100b43926e9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
                            "lessThan": "49b66110a08e4f926f6393e938f226de2750a08b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
                            "lessThan": "dd7973a4130b0862be38d7e08cc0e874b3d99967",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
                            "lessThan": "5f27581c176f84b52ec0ab9be7b500c10667ef60",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
                            "lessThan": "cc45f313d85533d647ce619326302aad6f797c14",
                            "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/scan.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.4",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5617d5328839003c91007ce906b4f100b43926e9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/49b66110a08e4f926f6393e938f226de2750a08b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dd7973a4130b0862be38d7e08cc0e874b3d99967"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5f27581c176f84b52ec0ab9be7b500c10667ef60"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cc45f313d85533d647ce619326302aad6f797c14"
                }
            ],
            "title": "wifi: cfg80211: preserve hidden-group beacon IE ownership",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}