drm/amd/display: Remove sink usage from DPMS

{
  "id": "1551fb9473bfccf020cfc1cf11c119c0f06215e109d3a364de1172900c3c884a",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-98926",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd/display: Remove sink usage from DPMS",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Remove sink usage from DPMS [Why] stream->sink is optional and can be null, so should always be checked before dereference. Additionally, most of its usage in DPMS sequences is for stream->sink->link, which can be replaced with stream->link, as the two should always be the same. [How] * Replace stream->sink->link in DPMS on/off * Add assert to USB4 BW allocation where sink is required * Avoid inconsistencies in resource access, e.g. don't repeat stream->link after it was already saved to a local variable * Pull out effective VPG calculation to helper getter * Formatting fixes",
    "evidence": "cve:CVE-2026-98926",
    "products": [
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98926",
      "aliases": [
        "CVE-2026-98926"
      ],
      "metrics": [],
      "affected": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "052fa7e8c9a92e3804ba9dba7c2550a9684d3441",
              "lessThan": "0b1eebd359685dd681f6e0df5540a5bb985a27bf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "052fa7e8c9a92e3804ba9dba7c2550a9684d3441",
              "lessThan": "8fa813b7fd1eccbed13e126166cf764f1f11a7d3",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "defaultStatus": "affected"
        }
      ],
      "modified": "2026-10-26T06:56:50.146Z",
      "provider": "cve",
      "references": [
        "https://git.kernel.org/stable/c/0b1eebd359685dd681f6e0df5540a5bb985a27bf",
        "https://git.kernel.org/stable/c/8fa813b7fd1eccbed13e126166cf764f1f11a7d3"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "shortName": "Linux",
          "dateUpdated": "2026-10-26T06:56:50.146Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-98926",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 263376,
  "published_at": "2026-10-23T12:05:54.511+00:00"
}