SB20251226132 - Use-after-free in Linux kernel drm rockchip driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226132
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) Use-after-free (CVE-ID: CVE-2023-54047)
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 website.
References
- 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