Към съдържанието
Търсене

CVE-2026-74741: Linux

7.5

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 по мрежата, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: net: ngbe: fix NULL pointer dereference in non-MSI-X interrupt enabling In non-MSI-X mode (such as legacy INTx or single MSI), wx->msix_entry is not allocated or initialized. Calling NGBE_INTR_MISC(wx) dereferences wx->msix_entry->entry, leading to a NULL pointer dereference crash. This issue was introduced by fixing the IRQ vector when the number of VFs is 7. Fix the issue by explicitly checking `pdev->msix_enabled` to determine the correct vector index. Additionally, as a side fix, set the interrupt mask to BIT(0) for the non-MSI-X fallback. In MSI/INTx mode, the MISC and queue interrupts share vector 0, and the WX_PX_MISC_IVAR register is only valid in the MSI-X case. Thus, BIT(0) is the correct mask for the miscellaneous cause when MSI-X is disabled.

    Засегнати продукти

    • Linux Linux: 4174c0c331a2aa3322d3b3be532808deb041b37d преди cef4c5b9aca24651d069adf9462b221df6a2a669; 4174c0c331a2aa3322d3b3be532808deb041b37d преди 0ab482b2195edc000262f0eae1cdcb416b8f335d; 4174c0c331a2aa3322d3b3be532808deb041b37d преди 5f3a13e0bb5ebcc1ca2dfda42ea40b9f3c2be6ea
    • Linux Linux: 6.16; преди 6.16; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

    История

    • 26 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-74741: Linux | freedomonline.bg