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CVE-2026-98477: 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: perf/core: Fix NULL pmu_ctx passed to pmu->sched_task() perf_pmu_sched_task() returns early when cpuctx->task_ctx is set, and cpc->task_epc is only non-NULL while a task context is scheduled in on this CPU. __perf_pmu_sched_task() therefore always passes NULL: Unable to handle kernel NULL pointer dereference at virtual address 00 pc : armv8pmu_sched_task+0x14/0x50 Call trace: armv8pmu_sched_task+0x14/0x50 (P) perf_pmu_sched_task+0xac/0x108 __perf_event_task_sched_out+0x6c/0xe0 Pass &cpc->epc instead, the CPU-wide context for this PMU, which the function already dereferences a few lines up to find pmu. armv8pmu_sched_task() is the only in-tree implementation that dereferences the argument, and it only reads ->pmu, so the oops needs BRBE, added in v6.17.

    Засегнати продукти

    • Linux Linux: bd27568117664b8b3e259721393df420ed51f57b преди 98181f9721f75f1a544dc563b0d8fed1d5c398d5; bd27568117664b8b3e259721393df420ed51f57b преди b5409311b606d536cc485f3706c242c2afa93edb; bd27568117664b8b3e259721393df420ed51f57b преди 249a2bd87a0e57dc28f36e992807edc9cae309b5; bd27568117664b8b3e259721393df420ed51f57b преди ec15f6a50183fc01f470af74ad49900fb3731fca; bd27568117664b8b3e259721393df420ed51f57b преди 36bb85cf36cab15fb611cb44b78a5df06e4e69a2
    • Linux Linux: 6.2; преди 6.2; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; 7.3 до *

    История

    • 18 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98477: Linux | freedomonline.bg