What is GHSA-jm7v-p326-mf66?

GHSA-jm7v-p326-mf66 is a security advisory published by GitHub Security Advisories with High severity. In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Resize MST...

Which CVE IDs does GHSA-jm7v-p326-mf66 cover?

GHSA-jm7v-p326-mf66 covers the following CVE IDs: CVE-2026-90289. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-jm7v-p326-mf66?

GHSA-jm7v-p326-mf66 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-jm7v-p326-mf66HighCVSS 7.8

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Resize MST...

Vendor

GitHub Security Advisories

Published

September 17, 2026

Last Modified

September 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-90289 →

📋 Description

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

drm/amd/display: Resize MST HDCP per-connector arrays to 32

AMDGPU_DM_MAX_DISPLAY_INDEX is 31. It suggest a maximum number of 32 connectors. But the way it's used is like MAX_DISPLAY_COUNT. Hence we're off by one with DRM core, which supports a max of 32 connectors.

Rename AMDGPU_DM_MAX_DISPLAY_INDEX to AMDGPU_DM_MAX_DISPLAY_COUNT to match its actual use, and increase the size to 32 to match the originally intended size.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-90289
https://git.kernel.org/stable/c/0fa116a17b69a28712cdf209318e345b676d7f6c
https://git.kernel.org/stable/c/261e0fe4e2c99f687114b64b10b98db964b475f4
https://github.com/advisories/GHSA-jm7v-p326-mf66