drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg

{
  "id": "b54ca4bc504b30dd9477f4423407bd61c0ccb1c998580ebccdab00594c3af5e7",
  "url": "https://osv.dev/vulnerability/CVE-2026-46199",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg Check bounds against the end of the BO whenever we access the msg.",
    "evidence": "osv:CVE-2026-46199",
    "products": [
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    "severity": "high",
    "structured": {
      "id": "CVE-2026-46199",
      "aliases": [
        "CVE-2026-46199"
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
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            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:30.822817174Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648",
        "https://git.kernel.org/stable/c/3c817a60b09eaab926e475088e750936efcc95ae",
        "https://git.kernel.org/stable/c/63b51e8a9d54317d31cc3856c1e12407070d5fc2",
        "https://git.kernel.org/stable/c/7688143ca62edeecacb3ba0a2cea129dbd262a18",
        "https://git.kernel.org/stable/c/88411caee8f576d6b5abf6531232fcc0ce756dc5",
        "https://git.kernel.org/stable/c/c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46199.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46199",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46199.json"
      }
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    "related_cves": [
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        "value": "CVE-2026-46199",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497846,
  "published_at": "2026-05-28T09:40:16.061+00:00"
}