{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-53381",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53381",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T11:59:30.469Z",
    "updatedAt": "2026-10-19T20:07:45.399Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "virtiofs: fix UAF on submount umount",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtiofs: fix UAF on submount umount\n\niput() called from fuse_release_end() can Oops if the super block has\nalready been destroyed.  Normally this is prevented by waiting for\nnum_waiting to go down to zero before commencing with super block shutdown.\n\nThis only works, however, for the last submount instance, as the wait\ncounter is per connection, not per superblock.\n\nRevert to using synchronous release requests for the auto_submounts case,\nwhich is virtiofs only at this time.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "548e1f2bac1d4df91a6138f26bb4ab00323fd948",
              "status": "affected",
              "versionType": "git",
              "lessThan": "607a1d4c42f649e6197567c0448fd9ebb316cd42"
            },
            {
              "version": "cfd1aa3e2b71f3327cb373c45a897c9028c62b35",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1cc0e3a0c6499aaaa2f21a4fcbba388486afb25e"
            },
            {
              "version": "83b375c6efef69b1066ad2d79601221e7892745a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b809199ff87c44487e516a725dd4be2185712ce"
            },
            {
              "version": "bfd17b6138df0122a95989457d8e18ce0b86165e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2181a09ba980f142650fb053666350ead4471cfe"
            },
            {
              "version": "b26923512dbe57ae4917bafd31396d22a9d1691a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "97c4691653d145dcc699eca5d3aba3219a520f1f"
            },
            {
              "version": "26e5c67deb2e1f42a951f022fdf5b9f7eb747b01",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2abfd3ffbd9452f72535d96ff3982b3ab1f8f2f9"
            },
            {
              "version": "26e5c67deb2e1f42a951f022fdf5b9f7eb747b01",
              "status": "affected",
              "versionType": "git",
              "lessThan": "39a2b95e008665c14f84e50ed411d898df7cd11b"
            },
            {
              "version": "26e5c67deb2e1f42a951f022fdf5b9f7eb747b01",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e09412a714bcd49375198427bb4aa005037a9d6f"
            },
            {
              "version": "26e5c67deb2e1f42a951f022fdf5b9f7eb747b01",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06b41351779e9289e8785694ade9042ae85e41ea"
            },
            {
              "version": "f19a1390af448d9e193c08e28ea5f727bf3c3049",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.246",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.260"
            },
            {
              "version": "5.15.196",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.211"
            },
            {
              "version": "6.1.158",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.177"
            },
            {
              "version": "6.6.115",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.144"
            },
            {
              "version": "6.12.54",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.95"
            },
            {
              "version": "6.17.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.18"
            },
            {
              "version": "5.10.260",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.211",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.177",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.144",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.95",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.37",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}