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CVE-2026-63855 drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings

🗓️ 19 Jul 2026 14:04:45Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

CVE-2026-63855 fixes AMDGPU VCN v2.5 enc/dec rings by rejecting 64-bit user fences.

Related
Affected
Refs
[
  {
    "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_v2_5.c"
    ],
    "versions": [
      {
        "version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
        "lessThan": "2c6fb056567efb49f8674108b86088a1cfaa86d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
        "lessThan": "8f0ea4524dc71c6c9ec97f2711f46e12f624140f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
        "lessThan": "602d4c5872b25ddd4d82fb2025efb9a05b187bb3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
        "lessThan": "5a3c6f76cab164a5d803084908d7050f649ab7f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
        "lessThan": "4f317863a3ab212a027d8c8c3cc3af4e3fb95704",
        "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_v2_5.c"
    ],
    "versions": [
      {
        "version": "5.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:36Current
CVSS 3.17.8
EPSS0.00132
37