#VU111576 Improper locking in Linux kernel - CVE-2022-50116
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111576
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-2022-50116
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 gsm_queue(), gsmld_output(), gsm_stuff_frame(), gsm_data_alloc(), gsm_is_flow_ctrl_msg(), __gsm_data_queue(), gsm_dlci_modem_output(), gsm_control_message(), gsm_control_wait(), gsm_dlci_close(), gsm_dlci_open(), gsm1_receive(), gsm_cleanup_mux(), gsm_activate_mux(), gsm_alloc_mux() and gsmld_open() functions in drivers/tty/n_gsm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.