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CVE-2026-98707: 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: mac80211: shut down RX BA session timer on teardown Tearing down an RX BA session can leave the session timer queued on a freed tid_rx. Later timer-wheel processing and the timer callback itself then run against freed memory. An RX BAR handler can dereference tid_rx under RCU before teardown unpublishes it and stay in its read-side critical section while teardown deletes the session timer. The stale handler can then rearm the timer after timer_delete_sync() returns and before the RCU callback frees tid_rx. Use timer_shutdown_sync() so rearm attempts become ineffective once teardown starts. Keep reorder_timer unchanged: teardown marks the session removed under reorder_lock and its release path checks that state before rearming. session_timer has no equivalent guard because ieee80211_rx_h_ctrl() rearms it before taking reorder_lock.

    Засегнати продукти

    • Linux Linux: a87f736d942c86255e3088c606f0e3eab6bbf784 преди 225c67a0bea0bd42f568f4842e747bb7f4bafebb; a87f736d942c86255e3088c606f0e3eab6bbf784 преди 18cf74311f3f0bc77384549d270c489f64c6510a; a87f736d942c86255e3088c606f0e3eab6bbf784 преди d0da6ab1fc53a68025929baf0947519c6c1684dc; a87f736d942c86255e3088c606f0e3eab6bbf784 преди 7bb2a5bd4f07192fca35644fab7d49a17bfbc861; a87f736d942c86255e3088c606f0e3eab6bbf784 преди 481f9230284c27052b59c587069f232c5d84779e; a87f736d942c86255e3088c606f0e3eab6bbf784 преди 09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba; a87f736d942c86255e3088c606f0e3eab6bbf784 преди e588e83e5c7a0f6d7a77dbbb58927c8c8cfd598e
    • Linux Linux: 2.6.36; преди 2.6.36; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

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    Първоизточници

    CVE-2026-98707: Linux | freedomonline.bg