{"id":"CVE-2026-90289","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Resize MST HDCP per-connector arrays to 32\n\nAMDGPU_DM_MAX_DISPLAY_INDEX is 31","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Resize MST HDCP per-connector arrays to 32\n\nAMDGPU_DM_MAX_DISPLAY_INDEX is 31. It suggest a maximum number of\n32 connectors. But the way it's used is l…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 82986fd631fa04bcedaefe11a6b3767601cbe84f < 0fa116a17b69a28712cdf209318e345b676d7f6c","Linux >= 82986fd631fa04bcedaefe11a6b3767601cbe84f < 261e0fe4e2c99f687114b64b10b98db964b475f4","Linux 99c444d3c3c43db354b253d9bfac081073dcb484","Linux d90f97cb3821c47bdf773dcf6cade143773ec764","Linux >= 5.15.128 < 5.16","Linux >= 6.1.47 < 6.2","Linux 6.3"],"published":"2026-09-17","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:18:00.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90289","references":[{"url":"https://git.kernel.org/stable/c/0fa116a17b69a28712cdf209318e345b676d7f6c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/261e0fe4e2c99f687114b64b10b98db964b475f4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/562d24ac214ba9530d88841088eb6adce5c537b5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90289.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90289"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536522"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90289"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90289"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90289.mbox"},{"url":"https://git.kernel.org/stable/c/decea8279bec5a35413b2cb8e36951cca308fac0"},{"url":"https://git.kernel.org/stable/c/ac490fea9fe74f9d9975c5d8250c8719750589cd"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00168,"epssPercentile":0.06172,"ingestedAt":"2026-09-17T16:21:47.833Z","cwe":["CWE-193"],"scores":{"nvd":7.8,"vendor":5.5,"cna":7.8},"slug":"CVE-2026-90289","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Resize MST HDCP per-connector arrays to 32\n\nAMDGPU_DM_MAX_DISPLAY_INDEX is 31. It suggest a maximum number of\n32 connectors. But the way it's used is like MAX_DISPLAY_COUNT.\nHence we're off by one with DRM core, which supports a max of 32\nconnectors.\n\nRename AMDGPU_DM_MAX_DISPLAY_INDEX to AMDGPU_DM_MAX_DISPLAY_COUNT\nto match its actual use, and increase the size to 32 to match the\noriginally intended size.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90289.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207229,"id":"CVE-2026-90289","ts":1789757339777,"field":"cvss","old":null,"new":"7.8"},{"seq":207228,"id":"CVE-2026-90289","ts":1789757339777,"field":"severity","old":"none","new":"high"}]}