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CVE-2026-99169: 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: futex: Fix mm reuse handling for FUT_OFF_MMSHARED A FUT_OFF_MMSHARED futex is a shared futex that refers to an MM. It is possible for a process to wait on a shared futex with a different MM because a FUT_OFF_INODE waiter can be requeued onto a FUT_OFF_MMSHARED futex by another process. This can cause FUT_OFF_MMSHARED waiters on a freed MM to consume wakeups intended for a newly allocated MM at the same address. Fix it by keying FUT_OFF_MMSHARED using a unique 64-bit per-MM ID. Leave private futexes as before to avoid influencing the performance of the hotpath. (Multi-threaded processes typically implicitly use FUT_OFF_MMSHARED by setting clear_child_tid such that it points into anonymous memory, which causes mm_release() in a multi-threaded mm to perform FUTEX_WAKE.)

    Засегнати продукти

    • Linux Linux: 222993395ed38f3751287f4bd82ef46b3eb3a66d преди 096b5d4b80d19b1f7bf8e63fae0d0a32dbb6e1a2; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди a7aa4ce1b56a688fe4da75430ec7bf9fe3311807; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди f470b76584b5e32d9f9436ef78fb899914116d75; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди 0c133ed51700036796318f038dde813976bf1227; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди 16cc0fee39dffd9994b7bea676a886ed52206754; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди 2855ddc6844f527e375e78afb55ec2a5182f23b3; 222993395ed38f3751287f4bd82ef46b3eb3a66d преди 3267512ad1c2cc0c7768c5b014dc2cceb398a801
    • Linux Linux: 5.7; преди 5.7; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.161 до 6.6.*; 6.12.115 до 6.12.*; 6.18.59 до 6.18.*; 7.2.13 до 7.2.*; 7.3 до *

    История

    • 28 октомври 2026 Публикувано

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    CVE-2026-99169: Linux | freedomonline.bg