SB2025121010 - Integer underflow in Linux kernel dml dcn32 driver
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121010
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer underflow (CVE-ID: CVE-2023-53780)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the dcn32_calculate_wm_and_dlg_fpu() function in drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4bdfa48d74649898468a0bf5c8b8a48dded77b4a
- https://git.kernel.org/stable/c/6853d56dba56d1c24db403ff3885c71e18d572c4
- https://git.kernel.org/stable/c/972243f973eb0821084e5833d5f7f4ed025f42da
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3