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CVE-2026-89740: 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: serial: imx: serialize imx_uart_ports[] lifetime imx_uart_probe() publishes its devm-allocated port in imx_uart_ports[] before uart_add_one_port() because console setup uses the table. The entry is not cleared when adding the port fails or after removal, leaving a dangling pointer. A sibling probe can register the shared console through that stale entry. This was reproduced under KASAN on QEMU mcimx6ul-evk by unbinding a sibling UART, unbinding the console UART and rebinding the sibling. Keep the entry valid through uart_remove_one_port(), then clear it. Protect port addition and removal together with their table updates so sibling operations cannot interleave. Reject an occupied slot rather than clobbering an active port during a duplicate-line probe.

    Засегнати продукти

    • Linux Linux: dbff4e9ea2e83fda89143389bfb229cb29425a32 преди ce9c074868d5c8adfb0c72de4324138d6fa1a1a8; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди a4acf2739434a014cdfc282175cffd3e35a97fa4; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди abc17fd508a511669997e48f8b014d8aa043abdf; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди 681696ae9e4a28bdf54893c807dfe4a6c08e30a5; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди 28b932202fcdbeb2ef58d89ce4363f480433c234; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди 7429dce56a73bc080a8c072edb167106f73a08ae; dbff4e9ea2e83fda89143389bfb229cb29425a32 преди 8b0b29fdcb47907ae0296b8fe829e918e05e300f
    • Linux Linux: 2.6.27; преди 2.6.27; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89740: Linux | freedomonline.bg