CVE-2026-90376
kernel: wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the MediaTek mt76 Wi-Fi driver within the Linux kernel. An incorrect Multi-Link Device (MLD) ID in the MAC Transmit Descriptor (TXD) and Host Interface Transmit Packet (HIF TXP) can cause the firmware to enter a busy loop. This issue occurs when a third MLD link is in power saving mode, leading to a Microcontroller Unit (MCU) command timeout and a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')