CVE-2026-98704 (GCVE-0-2026-98704)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:46 – Updated: 2026-10-21 12:55
VLAI
Title
wifi: mac80211: keep fallback association elements alive
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: keep fallback association elements alive Associating to a non-transmitted MBSSID profile reads freed memory while determining the operating channel and applying HT capabilities. When an association response omits WMM, HT, or VHT information, ieee80211_assoc_config_link() parses the cached BSS IEs and copies the missing element pointers out of that fallback parse. For a non-transmitted MBSSID profile those pointers refer to merged-profile storage owned by the parse object, and the fallback block frees that object at its end. The copied pointers are used afterwards to determine the operating channel, configure bandwidth, and apply HT capabilities. Keep the fallback parse result alive until association setup finishes. [reorder variable declaration]
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5023b14cf4df4d22e1a80738167f3438c9e62e5f , < de77b0f68142147e74fac1c497dbe1f93daeeed9 (git)
Affected: 5023b14cf4df4d22e1a80738167f3438c9e62e5f , < 1d9644753d46c86b4e5c05bd6d9d35339ea27331 (git)
Affected: 5023b14cf4df4d22e1a80738167f3438c9e62e5f , < d0183cd1f6a2dba9e63be20af2f65093c9c8d121 (git)
Affected: 5023b14cf4df4d22e1a80738167f3438c9e62e5f , < 0878594c5806dd29fa5e16cc026ce19158afdad2 (git)
Affected: 5023b14cf4df4d22e1a80738167f3438c9e62e5f , < a10a2f80476d166fd81c361ec0319493671b694e (git)
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Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: keep fallback association elements alive\n\nAssociating to a non-transmitted MBSSID profile reads freed memory while\ndetermining the operating channel and applying HT capabilities.\n\nWhen an association response omits WMM, HT, or VHT information,\nieee80211_assoc_config_link() parses the cached BSS IEs and copies the\nmissing element pointers out of that fallback parse. For a\nnon-transmitted MBSSID profile those pointers refer to merged-profile\nstorage owned by the parse object, and the fallback block frees that\nobject at its end. The copied pointers are used afterwards to determine\nthe operating channel, configure bandwidth, and apply HT capabilities.\n\nKeep the fallback parse result alive until association setup finishes.\n\n[reorder variable declaration]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:55:52.970Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e"
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      "title": "wifi: mac80211: keep fallback association elements alive",
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    "assignerShortName": "Linux",
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    "datePublished": "2026-10-18T15:46:34.493Z",
    "dateReserved": "2026-09-25T10:25:14.365Z",
    "dateUpdated": "2026-10-21T12:55:52.970Z",
    "state": "PUBLISHED"
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          }
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}



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