drm/amd/display: Resize MST HDCP per-connector arrays to 32
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.
CVE-2026-90289
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90289
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "82986fd631fa04bcedaefe11a6b3767601cbe84f",
"lessThan": "decea8279bec5a35413b2cb8e36951cca308fac0",
"versionType": "git"
},
{
"status": "affected",
"version": "82986fd631fa04bcedaefe11a6b3767601cbe84f",
"lessThan": "ac490fea9fe74f9d9975c5d8250c8719750589cd",
"versionType": "git"
},
{
"status": "affected",
"version": "82986fd631fa04bcedaefe11a6b3767601cbe84f",
"lessThan": "562d24ac214ba9530d88841088eb6adce5c537b5",
"versionType": "git"
},
{
"status": "affected",
"version": "82986fd631fa04bcedaefe11a6b3767601cbe84f",
"lessThan": "0fa116a17b69a28712cdf209318e345b676d7f6c",
"versionType": "git"
},
{
"status": "affected",
"version": "82986fd631fa04bcedaefe11a6b3767601cbe84f",
"lessThan": "261e0fe4e2c99f687114b64b10b98db964b475f4",
"versionType": "git"
},
{
"status": "affected",
"version": "99c444d3c3c43db354b253d9bfac081073dcb484",
"versionType": "git"
},
{
"status": "affected",
"version": "d90f97cb3821c47bdf773dcf6cade143773ec764",
"versionType": "git"
},
{
"status": "affected",
"version": "5.15.128",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.47",
"lessThan": "6.2",
"versionType": "semver"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c",
"drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c",
"drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90289
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48655 · Revision 1
- Added to Heist Feed
- Publisher date