#VU120392 Use-after-free in Linux kernel - CVE-2023-54047
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120392
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-2023-54047
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the dw_hdmi_rockchip_unbind() function in drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/110d4202522373d629d14597af9bac97eb58bd67
- https://git.kernel.org/stable/c/218fe9b624545f4bcfb16cdb35ac3d60c8b0d8c7
- https://git.kernel.org/stable/c/b5af48eedcb53491c02ded55d5991e03d6da6dbf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4