SB20251008109 - Improper locking in Linux kernel parisc kernel
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008109
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-50518)
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 website.
References
- 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