CVE-2025-40354

HighCVSS 7.8/10Last modified Oct 14, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: increase max link count and fix link->enc NULL pointer access

[why] 1.) dc->links[MAX_LINKS] array size smaller than actual requested. max_connector + max_dpia + 4 virtual = 14. increase from 12 to 14.

2.) hw_init() access null LINK_ENC for dpia non display_endpoint.

(cherry picked from commit d7f5a61e1b04ed87b008c8d327649d184dc5bb45)

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

VendorProductVersions
LinuxLinux>= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < f28092be4e12b7df9e4f415d25bf0d767bc2d9ed; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < a3fc0d36cfb927f8986b83bf5fba47dbedad3c63; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < bec947cbe9a65783adb475a5fb47980d7b4f4796
LinuxLinux4.15

References

Timeline

Published
Dec 16, 2025
Last modified
Oct 14, 2026
NVD status
Deferred

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CVE-2025-40354: High severity, CVSS 7.8 | Vulnix