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CVE-2026-97508 thunderbolt: Set tb->root_switch to NULL when domain is stopped

🗓️ 24 Sep 2026 16:04:58Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 43 Views

Linux kernel thunderbolt sets tb->root_switch to NULL when domain stops, causing DoS.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/thunderbolt/tb.c",
      "drivers/thunderbolt/xdomain.c"
    ],
    "versions": [
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "d9a638e7bc87e0e6fe3a75517ac481e72fc0058c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "66b0fe27e277713c2b9f3c452c76330ed0bd7eaf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "54ad3415cc211ca0d64ae1bf3234d6eb5c6aedd0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "83d1af5b1b6e6c96ffa633ca2c9a77f6f4c93efa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "f06e9fbae78a51832211b4495a19412c7d49ecb4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "99f019d2e9eb79adc485fef8aa8ada2cd0c843e9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1ff70241a275133e1a0258b7c23588b122276c8",
        "lessThan": "e56249d8a68e712f3b60e1f3fdbb5b4fea146468",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/thunderbolt/tb.c",
      "drivers/thunderbolt/xdomain.c"
    ],
    "versions": [
      {
        "version": "4.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.271",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.222",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.189",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.158",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.111",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.53",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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03 Oct 2026 10:59Current
CVSS 3.17.5
EPSS0.00225
43