CVE Database›CVE-2024-40977

CVE-2024-40977

kernel: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 12, 2024

Updated · October 31, 2026

Description

A vulnerability was found in the Linux kernel's mt76 driver for the mt7921s chip, where a potential deadlock could occur during chip recovery. This situation arises when the kernel worker reset_work holds a lock while waiting for the stat_worker thread, which is simultaneously waiting for the same lock to be released, which leads to hung tasks and may even result in device reboots.

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

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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-833 · Deadlock