{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98340",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.342Z",
        "datePublished": "2026-10-06T08:46:30.796Z",
        "dateUpdated": "2026-10-19T09:17:51.387Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:17:51.387Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: only group hidden BSSes with beacon entries\n\nWhen a probe response for an unknown BSS comes in, __cfg80211_bss_update()\nlooks for an existing entry with the same BSSID and a hidden (zero-length\nor NUL-filled) SSID, and if it finds one it groups them, using the beacon\nIEs from the existing entry.\n\nBut that could find another entry without a beacon, if it was also from a\nprobe response (with SSID), so there's a group without beacon elements.\n\nIf a beacon with a hidden SSID for that BSSID arrives later,\ncfg80211_combine_bsses() goes looking for the probe response entries that\nbelong to it - i.e. entries with the same BSSID and channel that have no\nbeacon IEs - and finds those two. They are already grouped with each\nother, so it hits its\n\n  WARN_ON_ONCE(bss->pub.hidden_beacon_bss)\n  WARN_ON_ONCE(!list_empty(&bss->hidden_list))\n\nwhich are there because an entry without beacon elements is not supposed\nto be part of a group yet.\n\nOnly combine entries when a beacon was already received, ones that are\nkept separate will be combined when a beacon arrives."
                }
            ],
            "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": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "4cd6a518ce7527284bbc9baab5fa2453a7d477c2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "74ed0d992f392c75e1969415527e06df3f7a4034",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "3658093df69849daf4f813a8f087f358e13be203",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "73365b81630b57e1a1f9d50dc87281797855c2ac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "7405dd19bda4537a2843637d8d7bed1efd4776cf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "86235be788094131912e9bd8412b358d91d99f49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "332ea1502c46f53375cb109fa82bfaff818f3a41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4593c4cbe1c96b3995727dc42f6aa103f4ff5afc",
                            "lessThan": "068843ed0902c552a13860c5ec6b2ca65b57a065",
                            "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": "3.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.9",
                            "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": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "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": "3.9",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "5.15.222"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.18.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "7.2.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4cd6a518ce7527284bbc9baab5fa2453a7d477c2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/74ed0d992f392c75e1969415527e06df3f7a4034"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3658093df69849daf4f813a8f087f358e13be203"
                },
                {
                    "url": "https://git.kernel.org/stable/c/73365b81630b57e1a1f9d50dc87281797855c2ac"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7405dd19bda4537a2843637d8d7bed1efd4776cf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/86235be788094131912e9bd8412b358d91d99f49"
                },
                {
                    "url": "https://git.kernel.org/stable/c/332ea1502c46f53375cb109fa82bfaff818f3a41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/068843ed0902c552a13860c5ec6b2ca65b57a065"
                }
            ],
            "title": "wifi: cfg80211: only group hidden BSSes with beacon entries",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}