#VU119515 Integer underflow in Linux kernel - CVE-2023-53780
Published: December 10, 2025 / Updated: December 12, 2025
Vulnerability identifier: #VU119515
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53780
CWE-ID: CWE-191
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 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 repository.
External links
- 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