CVE-2026-74741

CVE CVE-2026-74741EUVD EUVD-2026-66571Published 2026-08-26T14:36:52.000ZLast changed 2026-08-27T05:01:01.000ZCVSS 7.5

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 4174c0c331a2aa3322d3b3be532808deb041b37d <cef4c5b9aca24651d069adf9462b221df6a2a669; patch: 7.2; patch: 0; 6.16; patch: 6.18.46; 4174c0c331a2aa3322d3b3be532808deb041b37d <0ab482b2195edc000262f0eae1cdcb416b8f335d; 4174c0c331a2aa3322d3b3be532808deb041b37d <5f3a13e0bb5ebcc1ca2dfda42ea40b9f3c2be6ea; patch: 7.1.10

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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