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CVE-2026-89811: Linux

8.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Add TLB flush after MES queue eviction/suspension MES (Micro Engine Scheduler) does not perform heavy-weight TLB invalidation after unmapping queues, unlike HWS which does this automatically. This causes a race condition where in-flight DMA descriptors can access memory that has been unmapped, leading to page faults and GPU queue hangs during SVM page migration. The issue manifests as KFDSVMRangeTest.MultiThreadMigrationTest failures on gfx1151 (Strix Point) with XNACK mode 1 enabled - the GPU compute queue hangs with packets submitted but never consumed. Add kfd_flush_tlb() calls after MES queue removal in two locations: - evict_process_queues_cpsch(): after all queues removed during eviction - suspend_queues(): after debug/criu queue suspension (with mem_fence barrier) This ensures all in-flight memory accesses from unmapped queues are flushed before memory is freed or migrated. (cherry picked from commit f5c4f88e0f9c45a8fb9dfac0c1df726c95e41b77)

    Засегнати продукти

    • Linux Linux: cc009e613de6560eb499f8bc92c80a737752cb30 преди 750cd793ee69c27faf17fb9c49f92f71716bbc8b; cc009e613de6560eb499f8bc92c80a737752cb30 преди 5bbd7f283312d0209a0fedcc9d2d33b5afa5a7b1; cc009e613de6560eb499f8bc92c80a737752cb30 преди bbf5ad5268f36d7ebb7e99ae78fc73cffe98d372; cc009e613de6560eb499f8bc92c80a737752cb30 преди e230c546ed93741833ab5babb0b202f9c2052b45; cc009e613de6560eb499f8bc92c80a737752cb30 преди 6aae545c87087e4dc96e205452243813bfa73ba2; cc009e613de6560eb499f8bc92c80a737752cb30 преди 94e25cb6ab7f4f025bcdcd8ea79fda30f12843a4
    • Linux Linux: 5.19; преди 5.19; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; 7.3 до *

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89811: Linux | freedomonline.bg