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CVE-2026-68146: Linux

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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: ftrace: Add global mutex to serialize trace_parser access In ftrace, the trace_parser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user input. The affected handler paths and their specific functions are: - Open paths: ftrace_regex_open(), ftrace_graph_open() - Write paths: ftrace_regex_write(), ftrace_graph_write() - Release paths: ftrace_regex_release(), ftrace_graph_release() If userspace opens a trace file descriptor and shares it across multiple threads, concurrent write calls will race on the parser's internal state, specifically the 'idx', 'cont', and 'buffer' fields, leading to corrupted input or undefined behavior. Fix this by adding a global mutex, parser_lock, to serialize all access to trace_parser across write and release paths, preventing concurrent corruption of parser state.

    Засегнати продукти

    • Linux Linux: 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди a29bc20ea5f0cb79c6287f2c6182c5eeb8e6c01f; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди db76744d588086695371ecdd982694395628ba48; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди 1474fe4453505b6be720b5bb94be1c927de3314a; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди 3d0dd138a06c782f8b755cd1b6f9909494514ce1; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди 90be137813e1a5bdfd671e40fe28004fb959d3e4; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди 65bf73bee1a4f3722208ae46afc0fa5de76b9a0a; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди e807c9193d9493c7a0d039158ebb955050a76df1; 689fd8b65d669b96d612ccc37d6fb87bf7ed6907 преди 7720b63bcef3f54c7fe288774b720a227d54a306
    • Linux Linux: 2.6.32; преди 2.6.32; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; 7.2 до *

    История

    • 10 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-68146: Linux | freedomonline.bg