usb: typec: ucsi: Fix NULL pointer access

{
  "id": "c178420067a0bdf743e604881838ef73b9588160d754dc7f1baa5d4cfb8edcfe",
  "url": "https://osv.dev/vulnerability/CVE-2025-21918",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "usb: typec: ucsi: Fix NULL pointer access",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix NULL pointer access Resources should be released only after all threads that utilize them have been destroyed. This commit ensures that resources are not released prematurely by waiting for the associated workqueue to complete before deallocating them.",
    "evidence": "osv:CVE-2025-21918",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.1.133",
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            "value": "6.6.83",
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          {
            "value": "6.12.19",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.13.7",
            "evidence": "/affected/1/ranges"
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        ],
        "affected_versions": []
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    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-21918",
      "aliases": [
        "CVE-2025-21918"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
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          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "5.16.0"
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            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21918.json"
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      ],
      "modified": "2026-10-28T02:30:45.791296323Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/079a3e52f3e751bb8f5937195bdf25c5d14fdff0",
        "https://git.kernel.org/stable/c/46fba7be161bb89068958138ea64ec33c0b446d4",
        "https://git.kernel.org/stable/c/592a0327d026a122e97e8e8bb7c60cbbe7697344",
        "https://git.kernel.org/stable/c/7a735a8a46f6ebf898bbefd96659ca5da798bce0",
        "https://git.kernel.org/stable/c/b13abcb7ddd8d38de769486db5bd917537b32ab1",
        "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21918.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-21918",
        "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/2025/21xxx/CVE-2025-21918.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-21918",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513509,
  "published_at": "2025-04-01T15:40:53.561+00:00"
}