What’s Vulnerable › Vulnerabilities

CVE-2026-90365: wifi: mt76: cancel reset and rc work on device unregister

• Severity: unknown
• 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: 2026-09-17 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: cancel reset and rc work on device unregister Both drivers cancelled dump_work on unregister but left reset_work and rc_work to be flushed only by destroy_workqueue() in mt76_free_device(), which runs after the hw is unregistered and the hardware stopped. A reset_work that fires in that window calls ieee80211_restart_hw() and re-arms mac_work on an unregistered hw, and rc_work touches station state being torn down. Cancel both up front, alongside dump_work.

Affected products

• Linux: 5.8 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/13f230b8e3335ed761986fcd6b04049ff06471eb
• https://git.kernel.org/stable/c/5dd845c6388c6c9a4085ecdf59c7fe7bf3398e2e
• https://git.kernel.org/stable/c/7b3b1b3c7d434b5c5bc8d7de0b9c335242eeefba
• https://git.kernel.org/stable/c/aca0cd273b486a078f936b3fb409e619673521b1
• https://git.kernel.org/stable/c/c4dc85481d38951ca7f8bc104e711936306cc664
• https://git.kernel.org/stable/c/e995d3dccc9d980af13a60ad37409ed1561f9eeb

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