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CVE-2026-93150: 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: cgroup/cpuset: Make nr_deadline_tasks an atomic_t The nr_deadline_tasks variable in the cpuset structure was introduced by commit 6c24849f5515 ("sched/cpuset: Keep track of SCHED_DEADLINE task in cpusets"). It is reported by sashiko [1] that nr_deadline_tasks can currently be modified by inc_dl_tasks_cs() under rq->lock and by cpuset_attach() under cpuset_mutex. So if both updates happen simultaneously, the nr_deadline_tasks variable can be corrupted leading to incorrect operations down the road. Fix that by changing its type to atomic_t so that nr_deadline_tasks are always atomically updated. This fix patch is a low hanging fruit. It can handle some of the races between a concurrent sched_setscheduler() and cpuset_can_attach()/cpuset_attach() calls, but not all of them like the other issue raised by sashiko [2]. This will be handled hopefully in a future follow up patch. [1] https://sashiko.dev/#/patchset/20260626181923.133658-1-longman%40redhat.com [2] https://sashiko.dev/#/patchset/20260630033344.352702-1-longman%40redhat.com

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    • Linux Linux: d1b4262b78cc7638642833252ae92fc586854ffb преди 4987d336abf3fa575a2d953f69e11154ac9802c3; 6c24849f5515e4966d94fa5279bdff4acf2e9489 преди 642648fa7595241e4d491add5007bc33f11defb5; 6c24849f5515e4966d94fa5279bdff4acf2e9489 преди e422b32e6a57269ca8164c60674a78bee85cf5fb; 6c24849f5515e4966d94fa5279bdff4acf2e9489 преди e5965ae3f7c918151b87e5c925b7978afbeaf638; 6c24849f5515e4966d94fa5279bdff4acf2e9489 преди 78d9daf5e13ad1448b7dfebac949936710ec7565; 6c24849f5515e4966d94fa5279bdff4acf2e9489 преди 95220e1f18f6321008f021abc7d6f581f64bcb82; 5ac05ce5684315d0e71194a63febaf33921c3268; 43d8cbfefa7c59bd3b5fe184535eca476d45304e; 74fac5bb0d375d6b8f5e7997925063c509089c9c; 6.1.50 преди 6.1.191; 5.10.193 преди 5.11; 5.15.129 преди 5.16; 6.4.13 преди 6.5
    • Linux Linux: 6.5; преди 6.5; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

    История

    • 17 септември 2026 Публикувано

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    CVE-2026-93150: Linux | freedomonline.bg