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CVE-2026-68318: 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: pds_core: fix use-after-free on workqueue during remove In pdsc_remove(), the workqueue is destroyed before pdsc_teardown() is called. This ordering allows two paths to queue work on the destroyed workqueue: 1. If pdsc_teardown() -> pdsc_devcmd_reset() times out, the error path in pdsc_devcmd_locked() queues health_work. 2. A NotifyQ event can trigger the ISR and queue work before free_irq() is called in pdsc_teardown(). Fix by moving destroy_workqueue() after pdsc_teardown() so the workqueue outlives every queuer; destroy_workqueue() then flushes any work still pending. Draining the queued work also requires ordering the teardown so the resources that work touches are freed last: - In pdsc_qcq_free(), after freeing the interrupt, cancel_work_sync() the queue's work and only then clear qcq->intx, so pdsc_process_adminq()'s read of qcq->intx for interrupt-credit return cannot race with the clear. - Free adminqcq before notifyqcq: the shared adminq ISR is released when adminqcq is freed, and the adminq work accesses notifyqcq, so both must be stopped before notifyqcq is freed.

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    • Linux Linux: 01ba61b55b2041a39c54aefb3153c770dd59a0ef преди bac237c2aedb8225bfd2317c1361bbfce1e419ca; 01ba61b55b2041a39c54aefb3153c770dd59a0ef преди 224214eb4182ff20a665b615a90b66017539dd75; 01ba61b55b2041a39c54aefb3153c770dd59a0ef преди 9e0f80fac50ab95dd75537c8ecaf5051d01f19b5; 01ba61b55b2041a39c54aefb3153c770dd59a0ef преди ecc7a7d7569ec1d6a61e18372696b9de97635156; 01ba61b55b2041a39c54aefb3153c770dd59a0ef преди 0ad134881508c36b65c1a8864f8bec53adbd3327
    • Linux Linux: 6.4; преди 6.4; 6.6.160 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък

    История

    • 10 август 2026 Публикувано

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    CVE-2026-68318: Linux | freedomonline.bg