{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cf14826cdfb5c9fe10f98210d040b9d7486c381d"
            },
            {
              "fixed": "e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c"
            },
            {
              "fixed": "26c4f38529ac78930c9c4713e16ebc5b689bb0a3"
            },
            {
              "fixed": "2d6525e7b2504f5bbfe9417cddc1e8da858791dd"
            },
            {
              "fixed": "b076e45e6f757a2829e80d0144c1b5f201bee5af"
            },
            {
              "fixed": "f1e5a6660d7cbf006079126d9babbf0ccf538c6b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.9.0"
            },
            {
              "fixed": "6.6.141"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "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-2026-63854.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings\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 663bed3c7b8b9a7624b0d95d300ddae034ad0614)",
  "id": "CVE-2026-63854",
  "modified": "2026-07-22T05:29:53.042635826Z",
  "published": "2026-07-19T14:04:44.487Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63854.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63854"
    },
    {
      "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 v3.0 enc/dec rings"
}