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CVE-2026-98340: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: only group hidden BSSes with beacon entries When a probe response for an unknown BSS comes in, __cfg80211_bss_update() looks for an existing entry with the same BSSID and a hidden (zero-length or NUL-filled) SSID, and if it finds one it groups them, using the beacon IEs from the existing entry. But that could find another entry without a beacon, if it was also from a probe response (with SSID), so there's a group without beacon elements. If a beacon with a hidden SSID for that BSSID arrives later, cfg80211_combine_bsses() goes looking for the probe response entries that belong to it - i.e. entries with the same BSSID and channel that have no beacon IEs - and finds those two. They are already grouped with each other, so it hits its WARN_ON_ONCE(bss->pub.hidden_beacon_bss) WARN_ON_ONCE(!list_empty(&bss->hidden_list)) which are there because an entry without beacon elements is not supposed to be part of a group yet. Only combine entries when a beacon was already received, ones that are kept separate will be combined when a beacon arrives.

    Засегнати продукти

    • Linux Linux: 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 4cd6a518ce7527284bbc9baab5fa2453a7d477c2; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 74ed0d992f392c75e1969415527e06df3f7a4034; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 3658093df69849daf4f813a8f087f358e13be203; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 73365b81630b57e1a1f9d50dc87281797855c2ac; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 7405dd19bda4537a2843637d8d7bed1efd4776cf; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 86235be788094131912e9bd8412b358d91d99f49; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 332ea1502c46f53375cb109fa82bfaff818f3a41; 4593c4cbe1c96b3995727dc42f6aa103f4ff5afc преди 068843ed0902c552a13860c5ec6b2ca65b57a065
    • Linux Linux: 3.9; преди 3.9; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

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