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CVE-2026-93804: Linux

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    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: ibss: wait for in-flight TX on disconnect While leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes stations, turns the carrier off and immediately tells the driver to leave as well. While there may be synchronize_net() in station flush and in this code later, packets can still be transmitted due to cross-CPU race conditions after carrier off is set. Therefore, it's possible for a race to happen where a TX to the driver occurs while or after telling it to leave the IBSS. This can be confusing to drivers, and in the case of iwlwifi leads to an attempt to use invalid queues. Move netif_carrier_off() to occur before sta_info_flush() during IBSS disconnect, and add synchronize_net() if flushing didn't, so that the synchronize_net() always happens between turning the carrier off and telling the driver, avoiding this race.

    Засегнати продукти

    • Linux Linux: 86a2ea4134b48f6371103cfceb521bf2d2bf76cd преди 47185b5dbac264e7eb48c6d44368be6bfec17085; 86a2ea4134b48f6371103cfceb521bf2d2bf76cd преди 8e4a07ed82bae5d13525770880dc6dfd27f9bccd; 86a2ea4134b48f6371103cfceb521bf2d2bf76cd преди 20a3fb5e1a95caa34896853ca17a50d21c754969; 86a2ea4134b48f6371103cfceb521bf2d2bf76cd преди b3451e6971248250312ad32dd7f63cc9f0a925f5; 86a2ea4134b48f6371103cfceb521bf2d2bf76cd преди d0e69d9afa59b93c30294eba89b1f15f69e91105
    • Linux Linux: 3.3; преди 3.3; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; от 7.2 нататък

    История

    • 24 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93804: Linux | freedomonline.bg