#VU94271 Improper locking in Linux kernel - CVE-2024-40977
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94271
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-40977
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08
- https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02
- https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9
- https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.36