CVE-2026-46204 drm/amdgpu/vcn4: Prevent OOB reads when parsing IB

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"
    ],
    "versions": [
      {
        "version": "0b15205c7325dc20b7da0068307670d222d66949",
        "lessThan": "1dc005775fb5b3f86464406452b17364f85581d3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0b15205c7325dc20b7da0068307670d222d66949",
        "lessThan": "d0802a8877d730260d4af4dd4e0b6cde7e0e593f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0b15205c7325dc20b7da0068307670d222d66949",
        "lessThan": "a6d5563ba1f03a049561cd347574613167294e8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0b15205c7325dc20b7da0068307670d222d66949",
        "lessThan": "5c3e8ebad0c9e2354ddfa8f2148dc4f70a3b4bd1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0b15205c7325dc20b7da0068307670d222d66949",
        "lessThan": "2444eb0ec8283f4a3845eb7febad378476e1ba3c",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.90",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.32",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.9",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]