{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b889ef4ac98837838c38f7b9f72bba2f33ee367d"
            },
            {
              "fixed": "c12a5d35033c0640c57c10d7111c010c7b9c2c8e"
            },
            {
              "fixed": "387b7c7667bd5c53549350ddad866d2fcf75a529"
            },
            {
              "fixed": "9076a83e5adefd10dc5c967c7b8bde601c4c512a"
            },
            {
              "fixed": "0177ac6141c8857130cf365369c74dee7b6b1f7f"
            },
            {
              "fixed": "4532b52b34e4e4310386e6fdf6a643368599f522"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.5.0"
            },
            {
              "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-2026-63852.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 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 ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)",
  "id": "CVE-2026-63852",
  "modified": "2026-08-12T03:51:16.266638438Z",
  "published": "2026-07-19T14:04:43.258Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c12a5d35033c0640c57c10d7111c010c7b9c2c8e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63852.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63852"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "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 v4.0.3 enc ring"
}