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CVE-2026-72034 fhandle: reject detached mounts in capable_wrt_mount()

🗓️ 15 Aug 2026 05:51:55Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Linux kernel dereferences NULL mnt_ns in capable_wrt_mount() during detached mount handling, causing a panic.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-72034
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-72034
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-58992
15 Aug 202605:51
euvd
nvd
NVD
CVE-2026-72034
15 Aug 202606:21
nvd
osv
OSV
DEBIAN-CVE-2026-72034
15 Aug 202606:21
osv
ptsecurity
Positive Technologies
PT-2026-72223
15 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/fhandle.c"
    ],
    "versions": [
      {
        "version": "620c266f394932e5decc4b34683a75dfc59dc2f4",
        "lessThan": "15104234c267ebe04b9f9a73e5c2179cc265ff60",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "620c266f394932e5decc4b34683a75dfc59dc2f4",
        "lessThan": "6c52226072a3c61337b1eec1799bb987748884fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "620c266f394932e5decc4b34683a75dfc59dc2f4",
        "lessThan": "6ee183d89261bf1d1cf9f06d80a40dab8f36ee55",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "620c266f394932e5decc4b34683a75dfc59dc2f4",
        "lessThan": "6c732471740bc2ac9b0946134f9f551dc75f4369",
        "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/fhandle.c"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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