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CVE-2026-80559: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Input: sur40 - fix input device registration ordering In sur40_probe(), input_register_device() was previously called early before the V4L2 video device and vb2_queue components were fully initialized. If userspace opened the input device immediately upon registration, sur40_open() would trigger and start the sur40_poll() worker thread. This worker thread invokes sur40_process_video() and accesses the uninitialized vb2_queue structure, leading to a data race and potential system crash. Furthermore, if V4L2 or video registration failed after input_register_device() succeeded, the error path fell through to calling input_free_device() on a successfully registered device instead of input_unregister_device(), corrupting input core state. Move input_register_device() to the very end of sur40_probe(). This ensures the V4L2 and video queue structures are fully initialized before polling can start, and naturally resolves the error path bug since input_free_device() is now only called when input registration has not yet occurred. To maintain strict LIFO (Last-In, First-Out) teardown ordering, also move input_unregister_device() to the very beginning of sur40_disconnect(). This guarantees that the input polling worker thread is stopped before V4L2 video components or control handlers are unregistered.

    Засегнати продукти

    • Linux Linux: e831cd251fb91d6c25352d322743db0d17ea11dd преди cd4ecce2fd87760c0ad9a9d28c9fc62ea1dbfd3d; e831cd251fb91d6c25352d322743db0d17ea11dd преди dab741c9da72102a37cc1020a929051b7c45f9fb; e831cd251fb91d6c25352d322743db0d17ea11dd преди 764b507be7b51787e1f577ca3bf0bab7efe81ff8; e831cd251fb91d6c25352d322743db0d17ea11dd преди 3e8ed76a4f3572e637653f0654cccdf617903231; e831cd251fb91d6c25352d322743db0d17ea11dd преди 83aa12f9f2468a4fbef027c09224dc1011850fb0; e831cd251fb91d6c25352d322743db0d17ea11dd преди 5c1c5227c93f18cd329dd754b4df5e0e2daece1e; e831cd251fb91d6c25352d322743db0d17ea11dd преди beb9b0bd6e6e23f5e9e42b7ef890a50f57f1f3aa; e831cd251fb91d6c25352d322743db0d17ea11dd преди 9da976eb649c9e2f588a4499410e4d8af687925f
    • Linux Linux: 4.1; преди 4.1; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; 7.2 до *

    История

    • 26 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80559: Linux | freedomonline.bg