thunderbolt: Keep the domain reference while processing hotplug

{
  "id": "b9ed9db4d4863252db7ac30934b314cd05d4389780085921eb56a37b049b3912",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-98896",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "thunderbolt: Keep the domain reference while processing hotplug",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Keep the domain reference while processing hotplug We process hotplug events in a workqueue that may run after the domain has been removed by tb_domain_remove(). For example if user unloads the driver while at the same time plugging a device router we may have scheduled tb_handle_hotplug() to run. Avoid possible UAF in this case by taking the domain reference before scheduling the hotplug handler in tb_queue_hotplug().",
    "evidence": "cve:CVE-2026-98896",
    "products": [
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98896",
      "aliases": [
        "CVE-2026-98896"
      ],
      "metrics": [],
      "affected": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "06b2e894e640f6a3dbeb536a2d26d72426b26a46",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "1d991f749a8255ee2ecc6307e2f27354ab631827",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "e8656465d08ed832e120c9cca4a6d0c8ccb45698",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "b61a4ae2ec6a0d363615d01106e0a2d284133a38",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "04df2985159e381c88a923fae1bec2f8d0272412",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "0a87af3b1e3aa2e09d160848daf0c39e765b73de",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d6cc51cd1a4aed1d9e2dd66d643d729acb4be560",
              "lessThan": "138ec65b2c761f065b19d115aed2b8246fc272f5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/thunderbolt/tb.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/thunderbolt/tb.c"
          ],
          "defaultStatus": "affected"
        }
      ],
      "modified": "2026-10-26T06:56:22.985Z",
      "provider": "cve",
      "references": [
        "https://git.kernel.org/stable/c/06b2e894e640f6a3dbeb536a2d26d72426b26a46",
        "https://git.kernel.org/stable/c/1d991f749a8255ee2ecc6307e2f27354ab631827",
        "https://git.kernel.org/stable/c/e8656465d08ed832e120c9cca4a6d0c8ccb45698",
        "https://git.kernel.org/stable/c/b61a4ae2ec6a0d363615d01106e0a2d284133a38",
        "https://git.kernel.org/stable/c/04df2985159e381c88a923fae1bec2f8d0272412",
        "https://git.kernel.org/stable/c/0a87af3b1e3aa2e09d160848daf0c39e765b73de",
        "https://git.kernel.org/stable/c/138ec65b2c761f065b19d115aed2b8246fc272f5"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "shortName": "Linux",
          "dateUpdated": "2026-10-26T06:56:22.985Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-98896",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 263354,
  "published_at": "2026-10-23T11:37:58.225+00:00"
}