drm/xe/migrate: prevent potential UAF

{
  "id": "25e5558d193f58a6920c32524b3a438e42afb81b26c40e2c02eb9bc351cf7a83",
  "url": "https://osv.dev/vulnerability/CVE-2025-39740",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/xe/migrate: prevent potential UAF",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/xe/migrate: prevent potential UAF If we hit the error path, the previous fence (if there is one) has already been put() prior to this, so doing a fence_wait could lead to UAF. Tweak the flow to do to the put() until after we do the wait. (cherry picked from commit 9b7ca35ed28fe5fad86e9d9c24ebd1271e4c9c3e)",
    "evidence": "osv:CVE-2025-39740",
    "products": [
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        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.16.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-39740",
      "aliases": [
        "CVE-2025-39740"
      ],
      "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",
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                  "fixed": "7e46fa64a4b94208563c3a5bf1d7f4346f94abea"
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                {
                  "fixed": "145832fbdd17b1d77ffd6cdd1642259e101d1b7e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39740.json"
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.16.0"
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                {
                  "fixed": "6.16.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39740.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.499854427Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/145832fbdd17b1d77ffd6cdd1642259e101d1b7e",
        "https://git.kernel.org/stable/c/7e46fa64a4b94208563c3a5bf1d7f4346f94abea",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39740.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-39740",
        "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/2025/39xxx/CVE-2025-39740.json"
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    "related_cves": [
      {
        "value": "CVE-2025-39740",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 493122,
  "published_at": "2025-09-11T16:52:14.638+00:00"
}