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CVE-2025-40105 vfs: Don't leak disconnected dentries on umount

🗓️ 30 Oct 2025 09:48:09Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

CVE-2025-40105 prevents leaking dentries created under a disconnected parent on unmount.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/dcache.c"
    ],
    "versions": [
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "b5abafd0aa8d7bcb935c8f91e4cfc2f2820759e4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "20863bb7fbb016379f8227122edfabc5c799bc79",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "8004d4b8cbf1bd68a23c160d57287e177c82cc69",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "7e0c8aaf4e28918abded547a5147c7d52c4af7d2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "cebfbf40056a4d858b2a3ca59a69936d599bd209",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "620f3b0ede9c5cb4976cd0457d0b04ad551e5d6b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "eadc49999fa994d6fbd70c332bd5d5051cc42261",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f1ee616214cb22410e939d963bbb2349c2570f02",
        "lessThan": "56094ad3eaa21e6621396cc33811d8f72847a834",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/dcache.c"
    ],
    "versions": [
      {
        "version": "4.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.301",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.246",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.196",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.158",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.114",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.55",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.5",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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