drm/xe/pf: Fix use-after-free in migration restore

{
  "id": "6f1e2cfb77b25126b87d70d446be5c8ec246e8ea82917e2bca018e94fff0cd6c",
  "url": "https://osv.dev/vulnerability/CVE-2026-31490",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/xe/pf: Fix use-after-free in migration restore",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix use-after-free in migration restore When an error is returned from xe_sriov_pf_migration_restore_produce(), the data pointer is not set to NULL, which can trigger use-after-free in subsequent .write() calls. Set the pointer to NULL upon error to fix the problem. (cherry picked from commit 4f53d8c6d23527d734fe3531d08e15cb170a0819)",
    "evidence": "osv:CVE-2026-31490",
    "products": [
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        "name": {
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        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.19.11",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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    "severity": "high",
    "structured": {
      "id": "CVE-2026-31490",
      "aliases": [
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      "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": [
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                  "fixed": "87997b6c6516e049cbaf2fc6810b213d587a06b1"
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          "ranges": [
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              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.19.0"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31490.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.581007053Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/87997b6c6516e049cbaf2fc6810b213d587a06b1",
        "https://git.kernel.org/stable/c/e28552b4ddea5cb4725380dd08237831af835124",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31490.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31490",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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        "value": "CVE-2026-31490",
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 495028,
  "published_at": "2026-04-22T13:54:14.241+00:00"
}