#VU116806 Improper locking in Linux kernel - CVE-2022-50518
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116806
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-2022-50518
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 pdc_io_reset_devices(), pdc_iodc_print() and pdc_iodc_getc() functions in arch/parisc/kernel/firmware.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/04a603058e70b8b881bb7860b8bd649f931f2591
- https://git.kernel.org/stable/c/553bc5890ed96a8d006224c3a4673c47fee0d12a
- https://git.kernel.org/stable/c/7236aae5f81f3efbd93d0601e74fc05994bc2580
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2