SB20251001179 - Improper locking in Linux kernel drm vc4 driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001179
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) Improper locking (CVE-ID: CVE-2023-53455)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the vc4_hdmi_handle_hotplug() function in drivers/gpu/drm/vc4/vc4_hdmi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.