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HIGH

CVE-2026-90379

CVSS v3

8.8

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash When an AER error occurs and the bus is hung, the register reads return 0xFFFFFFFF, causing the DMA queue state to be corrupted and resulting in an invalid memory access when accessing q->desc[] or q->entry[]. Unable to handle kernel paging request at virtual address ffffffc01099eac0 pc : mt76_dma_add_buf+0x124/0x188 [mt76] lr : mt76_dma_rx_fill+0x11c/0x

Technical details

Published
2026-09-17
Last Modified
2026-09-18

Frequently asked questions

What is CVE-2026-90379?

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash When an AER error occurs and the bus is hung, the register reads return 0xFFFFFFFF, causing the DMA queue state to be corrupted and resulting in an invalid memory access when accessing q->desc[] or q->entry[]. Unable to handle kernel paging request at virtual address ffffffc01099eac0 pc : mt76_dma_add_buf+0x124/0x188 [mt76] lr : mt76_dma_rx_fill+0x11c/0x

Is CVE-2026-90379 actively exploited?

Active exploitation of CVE-2026-90379 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-90379?

CVE-2026-90379 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-90379 affecting your environment?

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