{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "547aad32edac17a3ec4989d8aad2426d0cbeb590"
            },
            {
              "fixed": "75091030f07b7957cc0646cd52e2d9d15f611483"
            },
            {
              "fixed": "6d9a98c5ed65ba92a09e4ca5a5f6941448145529"
            },
            {
              "fixed": "7f23b5c420b9f68a210c29c5123bace670aa8cc9"
            },
            {
              "fixed": "589a254bf3e88204c8402b9cbccd5e23a0af990f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63851.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring\n\nVCN encoder and decoder rings do not support 64-bit user fence writes,\nreject CS submissions with user fences.\n\n(cherry picked from commit 084d94ac93707bdda07efb5cee786f632de4219b)",
  "id": "CVE-2026-63851",
  "modified": "2026-07-22T05:30:12.555352426Z",
  "published": "2026-07-19T14:04:42.581Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63851.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63851"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring"
}