SB20251226172 - Out-of-bounds read in Linux kernel powerplay hwmgr driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226172
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) Out-of-bounds read (CVE-ID: CVE-2022-50781)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the vega20_odn_edit_dpm_table() function in drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.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/4d3dc0de9c46d9f73be6bac026e40b893e37ea21
- https://git.kernel.org/stable/c/8084bd0a64e278314b733993f388d83a86aa1183
- https://git.kernel.org/stable/c/85273b4a7076ed5328c8ace02234e4e7e10972d5
- https://git.kernel.org/stable/c/a03625ad11b50429930f4c491d6c97e70f2ba89a
- https://git.kernel.org/stable/c/d27252b5706e51188aed7647126e44dcf9e940c1
- https://git.kernel.org/stable/c/f289a38df0da4cfe4b50d04b1b9c3bc646fecd57
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86