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CVE-2026-98752: Linux

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: tty: port: fix tty_port_tty_vhangup() race Drivers rely on tty_port_tty_vhangup() to synchronously hang up their ports before tearing down resources as part of deregistration (e.g. on physical disconnect). If tty_port_tty_vhangup() races with another hangup it may however return before the port has been shut down. This is in turn can lead to use-after-free and NULL-pointer dereferences in racing ioctls (including a synchronous hangup) and in processing of racing asynchronous hangups (carrier loss). Add the missing serialisation to tty_port_tty_vhangup() and tty_port_hangup() so that the former does not return until the port has been shut down also when there is a racing hangup. Note that serial core does not use tty_port_hangup(), but it already holds the port mutex when clearing port->tty and shutting down the port in uart_hangup().

    Засегнати продукти

    • Linux Linux: 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди a78910f6d78cc1415cbc9b4fb621c3f4f6945be2; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди 2e16ae1464a4f435425c6f6ff1e293db850a624c; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди a776d603d1e1bba2837295817b0a39394707b10d; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди ce220b4cdf62f73db0c1940f968eb33b9899fdd0; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди 6d1a984afc3ca477dab3e51ec806671d443ad524; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди 6b7be3b9b857947e9c1338d4919d4ebd3b75e907; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди 017b18addbe8dcace1a569a00d40ed1ba1e03f4c; 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e преди b48820de8c1a596c5b99775524dfce73c6576c5d; 4260dc792fabfd20c8644fa9414b2ae48372365f; 2.6.31.2 преди 2.6.32
    • Linux Linux: 2.6.32; преди 2.6.32; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; 7.3 до *

    История

    • 18 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98752: Linux | freedomonline.bg