{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4aeaf3cbfa9f967e71849c66c6914ab6c2054581"
            },
            {
              "fixed": "46ad73aec27d020f103b4262e4da2d2c22f54799"
            },
            {
              "fixed": "3b0ea2021351b6b813b34fac940957f1f4fad85b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "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-2026-63840.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 86ac011ae234c03fb872f4945913391ea1d8862e)",
  "id": "CVE-2026-63840",
  "modified": "2026-07-22T05:30:09.139448832Z",
  "published": "2026-07-19T14:04:35.890Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b0ea2021351b6b813b34fac940957f1f4fad85b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46ad73aec27d020f103b4262e4da2d2c22f54799"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63840.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63840"
    },
    {
      "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/jpeg: set no_user_fence for JPEG v5.3.0 ring"
}