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CVE-2026-98993 namespace: don't inherit MNT_UMOUNT in clone_mnt()

🗓️ 23 Oct 2026 12:20:12Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Linux kernel clone_mnt() fails to mask MNT_UMOUNT, causing mount leaks and bugs.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98993
23 Oct 202613:35
–circl
cve
CVE
CVE-2026-98993
23 Oct 202612:20
–cve
debiancve
Debian CVE
CVE-2026-98993
23 Oct 202612:20
–debiancve
euvd
EUVD
EUVD-2026-108787
23 Oct 202612:20
–euvd
nvd
NVD
CVE-2026-98993
23 Oct 202613:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98993
23 Oct 202613:17
–osv_debian
ptsecurity
Positive Technologies
PT-2026-121970
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",
      "include/linux/mount.h"
    ],
    "versions": [
      {
        "version": "590ce4bcbfb4e0462a720a4ad901e84416080bba",
        "lessThan": "99698cfa34e493fc091219056aae446fe9442a96",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "590ce4bcbfb4e0462a720a4ad901e84416080bba",
        "lessThan": "c26c1a91ad2881a194f7af543e0b57f0870006b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "590ce4bcbfb4e0462a720a4ad901e84416080bba",
        "lessThan": "eecc9cd0fc07dba3f7fb0b2f844b4029435a2f7b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "590ce4bcbfb4e0462a720a4ad901e84416080bba",
        "lessThan": "5077b52e9e4d72da53c50251296b99cd416765a1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "590ce4bcbfb4e0462a720a4ad901e84416080bba",
        "lessThan": "e2c6d326216642011da318b9edfd5d57ebd5a56f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7052e71b2d085f76800115d4a212dcaf82b86262",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.0.2",
        "lessThan": "4.1",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/namespace.c",
      "include/linux/mount.h"
    ],
    "versions": [
      {
        "version": "4.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.160",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.114",
        "lessThanOrEqual": "6.12.*",
        "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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