CVE-2026-90289
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-09-17
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | d90f97cb3821c47bdf773dcf6cade143773ec764 < 1c22294c7d9b3b1c26a18ca4eca8c863a5a0d907 |
| Linux | Linux | 82986fd631fa04bcedaefe11a6b3767601cbe84f < decea8279bec5a35413b2cb8e36951cca308fac0 |
| Linux | Linux | 82986fd631fa04bcedaefe11a6b3767601cbe84f < ac490fea9fe74f9d9975c5d8250c8719750589cd |
| Linux | Linux | 82986fd631fa04bcedaefe11a6b3767601cbe84f < 562d24ac214ba9530d88841088eb6adce5c537b5 |
| Linux | Linux | 82986fd631fa04bcedaefe11a6b3767601cbe84f < 0fa116a17b69a28712cdf209318e345b676d7f6c |
| Linux | Linux | 82986fd631fa04bcedaefe11a6b3767601cbe84f < 261e0fe4e2c99f687114b64b10b98db964b475f4 |
| Linux | Linux | 99c444d3c3c43db354b253d9bfac081073dcb484 |
| Linux | Linux | 6.1.47 < 6.1.191 |
| Linux | Linux | 5.15.128 < 5.16 |
| Linux | Linux | 6.3 |