drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring

{
  "id": "d0cbfd12dc375767eefe603a1ef885362abfd0dd6f283ad9dafa9e83a01d66a4",
  "url": "https://osv.dev/vulnerability/CVE-2026-63843",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit f05d0a4f21fc720116d6e238f23308b199891058)",
    "evidence": "osv:CVE-2026-63843",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.91",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-63843",
      "aliases": [
        "CVE-2026-63843"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8f98a715da8e906cff5c635f9eb5399b84751557"
                },
                {
                  "fixed": "424510b60d4698a75a6ff71acdd88b528f0f39af"
                },
                {
                  "fixed": "f26e3f7186cd6ecc93e6af102744d64c798dea7e"
                },
                {
                  "fixed": "f9bc5633b761cff200c428f61ed0df6212b1c721"
                },
                {
                  "fixed": "b65b7f3f3c18f797f81a2af7c97e2079900ad6db"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63843.json"
          }
        },
        {
          "ranges": [
            {
              "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"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63843.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.738814551Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/424510b60d4698a75a6ff71acdd88b528f0f39af",
        "https://git.kernel.org/stable/c/b65b7f3f3c18f797f81a2af7c97e2079900ad6db",
        "https://git.kernel.org/stable/c/f26e3f7186cd6ecc93e6af102744d64c798dea7e",
        "https://git.kernel.org/stable/c/f9bc5633b761cff200c428f61ed0df6212b1c721",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63843.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-63843",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63843.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-63843",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497805,
  "published_at": "2026-07-19T14:04:37.815+00:00"
}