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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-90289

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

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 82986fd631fa04bcedaefe11a6b3767601cbe84f to < decea8279bec5a35413b2cb8e36951cca308fac0affected
  • 82986fd631fa04bcedaefe11a6b3767601cbe84f to < ac490fea9fe74f9d9975c5d8250c8719750589cdaffected
  • 82986fd631fa04bcedaefe11a6b3767601cbe84f to < 562d24ac214ba9530d88841088eb6adce5c537b5affected
  • 82986fd631fa04bcedaefe11a6b3767601cbe84f to < 0fa116a17b69a28712cdf209318e345b676d7f6caffected
  • 82986fd631fa04bcedaefe11a6b3767601cbe84f to < 261e0fe4e2c99f687114b64b10b98db964b475f4affected
  • 99c444d3c3c43db354b253d9bfac081073dcb484affected
  • d90f97cb3821c47bdf773dcf6cade143773ec764affected
  • 5.15.128 to < 5.16affected
  • 6.1.47 to < 6.2affected

Linux Linux

Default version status: affected

  • 6.3affected
  • 0 to < 6.3unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References