PT-2025-51570 · Linux+4 · Linux Kernel+4

Published 2025-10-21 · Updated 2026-05-26 · CVE-2025-40354

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 The Linux kernel contains a flaw within the DRM/AMD display subsystem. Specifically, the dc->links[MAX LINKS] array size was insufficient, leading to potential issues. Additionally, the hw init() function could access a null pointer (LINK ENC) for DPIA non-display endpoints. This issue was addressed by increasing the array size and correcting the null pointer access.

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:2026-01261

CVE-2025-40354

OPENSUSE-SU-2026:20145-1

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:20207-1

SUSE-SU-2026:20220-1

SUSE-SU-2026:20228-1

USN-8029-1

USN-8029-2

USN-8029-3

USN-8030-1

USN-8048-1

Affected Products

Amd

Debian

Linuxmint

Linux Kernel

Ubuntu

References · 1358

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40354.json · Exploit
• https://ubuntu.com/security/CVE-2025-40333 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40294 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40106 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40341 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68183 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40285 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40119 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40046 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40102 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8029-3 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68180 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40292 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40326 · Vendor Advisory