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CVE-2025-40195 mount: handle NULL values in mnt_ns_release()

🗓️ 12 Nov 2025 21:56:32Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

The mount subsystem now handles NULL mnt_ns_release() in listmount() gracefully.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/namespace.c"
    ],
    "versions": [
      {
        "version": "1901c92497bd90caf608a474f1bf4d8795b372a2",
        "lessThan": "2d68f8a7379d9c61005e982600c61948d4d019bd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1901c92497bd90caf608a474f1bf4d8795b372a2",
        "lessThan": "99ae3e70a293834d0274c46a37120c71a24a4995",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1901c92497bd90caf608a474f1bf4d8795b372a2",
        "lessThan": "6c7ca6a02f8f9549a438a08a23c6327580ecf3d6",
        "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/namespace.c"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.54",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.4",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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