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CVE-2026-89938: Linux

7.8

CVSS 3.1

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Атакува се

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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: iio: chemical: atlas-sensor: use iio_trigger_poll_nested() to fix remove UAF The atlas driver requests its hardware data-ready IRQ with devm_request_threaded_irq(); its threaded handler queues an irq_work, atlas_work_handler(), that calls iio_trigger_poll(data->trig). The IRQ is devm-managed, so free_irq() runs from the devres unwind after atlas_remove() returns without flushing that irq_work. Once a buffer is enabled, conversion-complete IRQs keep firing and queueing it; a pending irq_work can therefore run after the unwind has freed atlas_data/indio_dev and the trigger, when atlas_work_handler() derives the atlas_data pointer via container_of() and dereferences data->trig, a use-after-free. Call iio_trigger_poll_nested() directly from the threaded handler instead of bouncing through irq_work. free_irq() then drains the threaded handler, closing the window; other iio drivers with a threaded data-ready IRQ do the same (e.g. bmi270). This issue was found by an in-house static analysis tool.

    Засегнати продукти

    • Linux Linux: 7103b99b031cb0ff6979331757bfc4893f37ae9e преди f64b437641b5a70c18bb0fd38da2b69d8926c871; 7103b99b031cb0ff6979331757bfc4893f37ae9e преди 91e12b0fbd7047d02bf4ef4dbc491b9ef0159250; 7103b99b031cb0ff6979331757bfc4893f37ae9e преди 2071624c3d0f497ca91da78858e6f30d7112fea6; 7103b99b031cb0ff6979331757bfc4893f37ae9e преди 30b0d44c978bbc857bd68b71dab371805653de70; 7103b99b031cb0ff6979331757bfc4893f37ae9e преди be61c8c6252671ecf1fee0ad90f87669e0be1e20
    • Linux Linux: 4.8; преди 4.8; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89938: Linux | freedomonline.bg