SB2024071371 - Improper locking in Linux kernel mt76 mt7921 driver

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Main Vulnerability Database SB2024071371

SB2024071371 - Improper locking in Linux kernel mt76 mt7921 driver

Published: July 13, 2024 Updated: May 13, 2025

Security Bulletin ID SB2024071371
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper locking (CVE-ID: CVE-2024-40977)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the mt76s_tx_status_data() function in drivers/net/wireless/mediatek/mt76/sdio.c, within the mt7921s_mac_reset() function in drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c, within the mt7921e_mac_reset() function in drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c, within the mt7921_mac_reset_work() function in drivers/net/wireless/mediatek/mt76/mt7921/mac.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References