CVE-2026-90289

CVE CVE-2026-90289EUVD EUVD-2026-81882Published 2026-09-17T16:08:17.000ZLast changed 2026-09-18T17:54:19.000ZCVSS 7.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5.15.128 <5.16; patch: 7.3-rc1; 82986fd631fa04bcedaefe11a6b3767601cbe84f <261e0fe4e2c99f687114b64b10b98db964b475f4; d90f97cb3821c47bdf773dcf6cade143773ec764; patch: 7.2.6; 6.1.47 <6.2; patch: 0; 82986fd631fa04bcedaefe11a6b3767601cbe84f <0fa116a17b69a28712cdf209318e345b676d7f6c; 99c444d3c3c43db354b253d9bfac081073dcb484; 6.3

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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