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CVE-2026-99189: 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: gpio: mxc: fix race between chained IRQ handler install and probe completion mxc_update_irq_chained_handler() is called before the IRQ domain, the generic IRQ chip, and the port list entry are set up. If an interrupt arrives in that window: - mx3_gpio_irq_handler() calls generic_handle_domain_irq() with port->domain still NULL. - mx2_gpio_irq_handler() walks mxc_gpio_ports, but the port has not been added to the list yet. Additionally, if any of the subsequent probe steps (gpio_generic_chip_init(), devm_gpiochip_add_data(), irq_domain_create_legacy(), or mxc_gpio_init_gc()) fail, the error paths never unregister the chained handler, leaving a dangling handler that points at freed memory. Move the handler installation after all its dependencies are ready and after list_add_tail(), so the handler is never live while the data structures it touches are incomplete, and is never installed if probe fails.

    Засегнати продукти

    • Linux Linux: 5f6d1998adeb5374ef248b5ba2e2a0c30ab0f60b преди 261802c14e1a3281987ea8f106701e5ed9652f68; 5f6d1998adeb5374ef248b5ba2e2a0c30ab0f60b преди 6c1e035d881579a6e4ed1ce5feabb13d23e80a82; 5f6d1998adeb5374ef248b5ba2e2a0c30ab0f60b преди 38d44f78f041ffe60c8e2443b99434a199e7541d
    • Linux Linux: 6.6; преди 6.6; 6.18.59 до 6.18.*; 7.2.13 до 7.2.*; от 7.3 нататък

    История

    • 28 октомври 2026 Публикувано

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    Първоизточници

    CVE-2026-99189: Linux | freedomonline.bg