PT-2025-52975 · Linux · Linux Kernel

Published 2023-01-08 · Updated 2026-02-24 · CVE-2023-54018

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s DRM/MSM/HDMI subsystem. Specifically, a missing check for the return value of alloc ordered workqueue can lead to a NULL pointer dereference in hdmi hdcp.c and hdmi hpd.c. This occurs when alloc ordered workqueue returns a NULL pointer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-04210

CVE-2023-54018

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 985

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54018.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54018 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54018 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54018 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54018 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04210 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-54018 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54018 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-54018 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54018 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://git.kernel.org/stable/c/1bab31a0969ca4ac90907a5d3b44af104229eafd · Note