CVE-2026-90355

kernel: wifi: mt76: mt7996: clear stale link state on full reset

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 21, 2026

Description

A flaw was found in the Wi-Fi driver (mt76: mt7996) of the Linux kernel. After a full chip reset, the driver fails to properly clear stale link state information, causing the device to become inoperative. This issue arises because the system attempts to re-create device and station records while old link identifiers are still marked as valid. Furthermore, repeated full resets can lead to the exhaustion of Multi-Link Device (MLD) index space, preventing proper device functionality.

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 · 5.3
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime