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CVE-2026-93091: 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: firmware: arm_scmi: Quiesce notifications before teardown scmi_notification_exit() clears and releases the notification instance, but transport callbacks can still deliver incoming notifications until the TX/RX channels are freed. During remove, an RX interrupt in that window can enter scmi_notify() while notification state is being torn down and then dereference freed memory. The same ordering exists on the probe error path after notification initialization. The notification late-init worker has a separate lifetime issue: protocol event registration queues ni->init_work on the system workqueue, so destroying ni->notify_wq does not drain that work. If the devres group is released while init_work is still pending or running, the late-init worker can dereference the freed notification instance. Quiesce the notification core before TX/RX channels are torn down, then clean up the channels before releasing the notification core resources. Use disable_work_sync() so future late-init queueing is rejected and any already queued or running late-init work has completed before channel teardown starts.

    Засегнати продукти

    • Linux Linux: 1e7cbfaa66d39e78bd24df0c78b55df68176b59e преди 6778bcabd2e0c32f73476f0bc6369013692540be; 1e7cbfaa66d39e78bd24df0c78b55df68176b59e преди 2aac23bc0a79af41104d99823bb250fae92ba144; 1e7cbfaa66d39e78bd24df0c78b55df68176b59e преди 5e30d3d16d1a9e599be4dcea872874e65e2c277b; 1e7cbfaa66d39e78bd24df0c78b55df68176b59e преди 8e49055d0d495c9c07575ad8e111d9eaf0efb13f
    • Linux Linux: 5.15; преди 5.15; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93091: Linux | freedomonline.bg