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CVE-2026-98192: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: Fix potential use-after-free in TX ack timer teardown wcn36xx_dxe_deinit() tears down the TX ack timer with timer_delete(), which only dequeues the timer and does not wait for a callback that is already executing; the preceding free_irq() calls synchronize the interrupt handlers only. The callback, wcn36xx_dxe_tx_timer(), can therefore be running past the teardown and use the wcn freed along with the ieee80211_hw in wcn36xx_remove(): it takes wcn->dxe_lock, reads wcn->tx_ack_skb and passes wcn->hw to ieee80211_tx_status_irqsafe(). Fix this by using timer_shutdown_sync(), which waits for a running callback and also prevents the timer from being rearmed again. The timer is set up again by wcn36xx_dxe_init() on the next start, so the start/stop cycle is unaffected. This issue was found by an in-house static analysis tool.

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    • Linux Linux: fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди 915298dbb766d2311b0822ab6ef24780def0bd53; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди e7f265d507ee55017b67ef4722df884468be1113; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди 7ce1e55a439968a298a63d3199cb1c2636429746; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди 15e59e377facc87ce82228279d88efaa89fdbca5; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди 3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди 2bddc5d088cf430ecd913020472f1def32a36a3d; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди c0df0878e9110909cf0bec6080d72d36401a0c89; fdf21cc3714939dd4327f3d664fe5863d15ccb31 преди d9be5e75530772fc31637070d51e5717d6aeaa2a
    • Linux Linux: 5.10; преди 5.10; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 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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    CVE-2026-98192: Linux | freedomonline.bg