CVE-2026-90367 Linux Kernel mt76 - Race Condition

Linux kernel mt76 driver contains a race condition caused by improper mutex handling during tx worker disable in mt7996, letting attackers cause descriptor corruption via L1 SER during channel switch, exploit requires hardware error condition.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.38% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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