HID: hidpp: fix potential UAF in hidpp_connect_event()

{
  "id": "e5768f9cd974ad1f63a3d4e6b3c880f52c7a41db7bd98ed7e65076f2b2cb04a9",
  "url": "https://osv.dev/vulnerability/CVE-2026-93826",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "HID: hidpp: fix potential UAF in hidpp_connect_event()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: HID: hidpp: fix potential UAF in hidpp_connect_event() If input_register_device() fails, we call input_free_device(), but keep stale pointer to the old device in hidpp->input, which could potentially lead to UAF. Fix that by resetting it to NULL before returning from hidpp_connect_event().",
    "evidence": "osv:CVE-2026-93826",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.1.189",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.6.158",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.111",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.53",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-93826",
      "aliases": [
        "CVE-2026-93826"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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              "type": "GIT",
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                {
                  "fixed": "e03fd646adad7f97fa4429ec5f38cee9bde5276e"
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                {
                  "fixed": "5d7637f4d050d105177217e64b869f56f9825060"
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                  "fixed": "3b8b2e58b078cd30e121401535541bb8a6d57133"
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          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                  "introduced": "3.19.0"
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            {
              "type": "ECOSYSTEM",
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93826.json"
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      ],
      "modified": "2026-10-28T02:30:36.632169767Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3",
        "https://git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133",
        "https://git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060",
        "https://git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893b",
        "https://git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93826.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93826",
        "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/2026/93xxx/CVE-2026-93826.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93826",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503978,
  "published_at": "2026-09-24T16:03:04.711+00:00"
}