CVE-2026-90289

linux: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Resize MST HDCP per-connector a...

CVE-2026-90289 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-90289, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-64kb · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-azure · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-default · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-default · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.40.1.160000.2.29 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.87.3.150700.17.49.2 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-default-base · sles 16.0 6.12.0-160000.40.1.160000.2.29 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-docs · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-livepatch-SLE15-SP7-RT_Update_22 · sles 15.7 1-150700.1.3.1 SUSE-SU-2026:4940-1 Nov 7, 2026
kernel-livepatch-SLE15-SP7_Update_23 · sles 15.7 1-150700.15.3.2 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.87.2 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-source · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-source · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.87.1 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-syms · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.40.1 OPENSUSE-SU-2026:22167-1 Nov 7, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.87.3 SUSE-SU-2026:4935-1 Nov 7, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.40.1 SUSE-SU-2026:24446-1 Nov 7, 2026
linux · Debian 13.5 (trixie) 6.12.115-2 DEBIAN-CVE-2026-90289 Sep 23, 2026
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-90289 Sep 23, 2026

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