#VU119731 NULL pointer dereference in Linux kernel - CVE-2023-53784

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Main Vulnerability Database Vulnerabilities #VU119731

#VU119731 NULL pointer dereference in Linux kernel - CVE-2023-53784

Published: December 10, 2025 / Updated: December 12, 2025


Vulnerability identifier: #VU119731
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53784
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the dw_hdmi_set_high_tmds_clock_ratio(), hdmi_av_composer() and dw_hdmi_probe() functions in drivers/gpu/drm/bridge/synopsys/dw-hdmi.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's repository.

External links