{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e684e654eba9481a9f462a7bbf5c385b7d1c076e"
            },
            {
              "fixed": "b884ff67d62ef514eee9d5f605c03101c8b6bc98"
            },
            {
              "fixed": "d6bd2a5fd611ec9c8a2411f084cff2435c709608"
            },
            {
              "fixed": "8549b3933038e68dc61cb934b9a54223dd244a78"
            },
            {
              "fixed": "249fa7549736de1c8e327d7ca6b32fa148a40bd6"
            },
            {
              "fixed": "83e37c0987ca92f9e87789b46dd311dcf5a4a6c8"
            }
          ],
          "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-2026-63844.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927)",
  "id": "CVE-2026-63844",
  "modified": "2026-07-22T05:29:40.351363833Z",
  "published": "2026-07-19T14:04:38.452Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/249fa7549736de1c8e327d7ca6b32fa148a40bd6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83e37c0987ca92f9e87789b46dd311dcf5a4a6c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8549b3933038e68dc61cb934b9a54223dd244a78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b884ff67d62ef514eee9d5f605c03101c8b6bc98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6bd2a5fd611ec9c8a2411f084cff2435c709608"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63844.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63844"
    },
    {
      "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 v4.0.3 ring"
}