CVE-2025-39918: wifi: mt76: fix linked list corruption

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-01 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix linked list corruption Never leave scheduled wcid entries on the temporary on-stack list

Affected products

Linux kernel: from 6.12 before 6.12.46; from 6.13 before 6.16.6; 6.17-rc1, 6.17-rc2, 6.17-rc3, 6.17-rc4 — fixed in 6.12.46, 6.16.6

How to fix

Upgrade to a fixed version: Linux kernel 6.12.46, 6.16.6. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/49fba87205bec14a0f6bd997635bf3968408161e
https://git.kernel.org/stable/c/c91a59b04f928cb4a1436b0e0a27650883d0388a
https://git.kernel.org/stable/c/e4d5a5fc61fdc65220a1ce078d24c1d20bbb0835

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