CVE-2026-46136

kernel: wifi: mt76: mt7921: fix a potential clc buffer length underflow

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 28, 2026

Updated · June 27, 2026

Description

A flaw was found in the Linux kernel's wifi: mt76: mt7921 component. A buffer length underflow in the CLC (Country Logic Control) mechanism can occur due to changes in the power table. This issue may lead to an almost infinite loop or an invalid power setting, resulting in a Denial of Service (DoS) by causing driver initialization failure.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-124 · Buffer Underwrite ('Buffer Underflow')