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CVE-2026-98978

🗓️ 23 Oct 2026 12:19:51Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 1 Views

Linux kernel flaw allows unmounting a locked mount via an unlocked ancestor.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98978
23 Oct 202613:25
–circl
cvelist
Cvelist
CVE-2026-98978 namespace: never expire a locked mount
23 Oct 202612:19
–cvelist
debiancve
Debian CVE
CVE-2026-98978
23 Oct 202612:19
–debiancve
euvd
EUVD
EUVD-2026-108772
23 Oct 202612:19
–euvd
nvd
NVD
CVE-2026-98978
23 Oct 202613:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98978
23 Oct 202613:17
–osv_debian
ptsecurity
Positive Technologies
PT-2026-121955
23 Oct 202600:00
–ptsecurity
Vulners
CNA
Node
OR
linuxlinux_kernelRange3.12–6.18.57
linuxlinux_kernelRange6.19.0–7.2.11
linuxlinux_kernelRange7.3.0≥
[
  {
    "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": "5ff9d8a65ce80efb509ce4e8051394e9ed2cd942",
        "lessThan": "6b8dc3713a76346d212abab46cbfc8d7070f534c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5ff9d8a65ce80efb509ce4e8051394e9ed2cd942",
        "lessThan": "d23265a12e4991ce7aedce670c0b6b598cadb644",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5ff9d8a65ce80efb509ce4e8051394e9ed2cd942",
        "lessThan": "f78ddcc872248c7aa1d7e904928441a0be4c6d5d",
        "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": "3.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.12",
        "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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23 Oct 2026 13:17Current
5.9Medium risk
Vulners AI Score5.9
1