Към съдържанието
Търсене

CVE-2026-90387: Linux

7.8

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: swiotlb: Preserve allocation virtual address for dynamic pools swiotlb_alloc_tlb() can allocate from the DMA atomic pool when a decrypted pool is needed from atomic context. With CONFIG_DMA_DIRECT_REMAP, the atomic pool is backed by remapped virtual addresses, which are not the same as the direct-map addresses returned by phys_to_virt(). swiotlb_init_io_tlb_pool() currently reconstructs the pool virtual address from the physical start address. For atomic-pool backed allocations this stores the wrong address in pool->vaddr. Later, swiotlb_free_tlb() passes that address to dma_free_from_pool(), which will fail to recognize the chunk Pass the virtual address returned by the allocation path into swiotlb_init_io_tlb_pool(), and store that address in pool->vaddr. This keeps the pool free path using the same virtual address as the allocator.

    Засегнати продукти

    • Linux Linux: 79636caad3618e2b38457f6e298c9b31ba82b489 преди 68bf3ebd8e7020dae58e8aa14c7d482738bff9a8; 79636caad3618e2b38457f6e298c9b31ba82b489 преди 45507dcb0847e96add4455274b12df0eca6590b4; 79636caad3618e2b38457f6e298c9b31ba82b489 преди 35e0103177826430b5df888b1506239d41e76ab5; 79636caad3618e2b38457f6e298c9b31ba82b489 преди c1f4d7763cdf1b9e0d35c14aa6f52d0512a36319; 79636caad3618e2b38457f6e298c9b31ba82b489 преди 57d29044d0f29a76c6ec0c112c8c7371d5608dc7
    • Linux Linux: 6.6; преди 6.6; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-90387: Linux | freedomonline.bg