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CVE-2026-98987 namespace: look at the topmost mount for a mount namespace file

🗓️ 23 Oct 2026 12:20:06Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Linux kernel attach_recursive_mnt() flaw allows mounts to become unmountable.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98987
23 Oct 202613:31
–circl
cve
CVE
CVE-2026-98987
23 Oct 202612:20
–cve
debiancve
Debian CVE
CVE-2026-98987
23 Oct 202612:20
–debiancve
euvd
EUVD
EUVD-2026-108781
23 Oct 202612:20
–euvd
nvd
NVD
CVE-2026-98987
23 Oct 202613:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98987
23 Oct 202613:17
–osv_debian
ptsecurity
Positive Technologies
PT-2026-121964
23 Oct 202600:00
–ptsecurity
[
  {
    "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": "96f5d2e051653f2cfe9137c5d3c7794c358ffb03",
        "lessThan": "b9c40553f6ceba50042281eef6f701e5fb719726",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96f5d2e051653f2cfe9137c5d3c7794c358ffb03",
        "lessThan": "87ecd4c6da146363384a603bd9e90c90e7275536",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96f5d2e051653f2cfe9137c5d3c7794c358ffb03",
        "lessThan": "8714b44adac7b10506e1db3ef1710689751f0f10",
        "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": "6.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.57",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.11",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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