{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b6d1a06320519ac3bfda6ce81067a1bc409b9cff"
            },
            {
              "fixed": "9f5a1459ecc3195282be617639d710b54779c9dc"
            },
            {
              "fixed": "139a8a52ef4349c62129703b3a3e3a6ae4d634eb"
            },
            {
              "fixed": "2c350f3cd94be847ac216e1358ec7001eaaf0934"
            },
            {
              "fixed": "8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.9.0"
            },
            {
              "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-2026-63850.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)",
  "id": "CVE-2026-63850",
  "modified": "2026-07-22T05:29:49.151679050Z",
  "published": "2026-07-19T14:04:41.975Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63850.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63850"
    },
    {
      "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 v5.0.0 enc ring"
}