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CVE-2026-92514: Linux

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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: RDMA/erdma: Fix CEQ tasklet use-after-free on removal Each CEQ interrupt handler only schedules eqc->tasklet. The tasklet calls erdma_ceq_completion_handler(), which reads the DMA-coherent EQ ring through get_next_valid_eqe() and updates eq->dbrec through notify_eq(). erdma_ceqs_uninit() frees each CEQ IRQ and then destroys its EQ. free_irq() prevents another hard IRQ and waits for an in-flight handler, but it does not drain a tasklet that the handler already scheduled. The tasklet can therefore access eq->qbuf or eq->dbrec after erdma_eq_destroy() frees them. Clearing ceq_cb->ready does not synchronize with a tasklet that already passed the check at the start of erdma_ceq_completion_handler(). Kill the tasklet after free_irq(), when no handler can schedule it again, and before erdma_ceq_uninit_one() releases the EQ buffers.

    Засегнати продукти

    • Linux Linux: f2a0a630b953451a59a2612ad8c29246638f0a38 преди 0e8b78dabb1f156db05ffe74c6eae861167c7c21; f2a0a630b953451a59a2612ad8c29246638f0a38 преди 6e129c1310abfa786a510cc63e69c5ef12349048; f2a0a630b953451a59a2612ad8c29246638f0a38 преди f738c0a372d36a10dfae6dc357717c13b2aa72f4; f2a0a630b953451a59a2612ad8c29246638f0a38 преди a60c36d8d17f1b86705523d5eb6d290df28831e5; f2a0a630b953451a59a2612ad8c29246638f0a38 преди 61a25b8d333e1eb2a189881d516f8d5194e26840; f2a0a630b953451a59a2612ad8c29246638f0a38 преди 0ca79979384f031d710c4b3bae065dcb5d95aca3
    • Linux Linux: 6.0; преди 6.0; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-92514: Linux | freedomonline.bg