{
  "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-2026-90420",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90420",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:09:44.558Z",
    "updatedAt": "2026-10-19T09:03:24.266Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "nilfs2: fix infinite loop in nilfs_clean_segments()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_clean_segments()\n\nsyzbot reported a hung task in nilfs_transaction_begin(). This occurs\nbecause the cleaner ioctl falls into an infinite loop if\nnilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device\nis remounted as read-only after an I/O error).\n\nCurrently in nilfs_clean_segments(), if err is non-zero, it logs the\nerror and sleeps but doesn't abort when it encounters a terminal error\nlike -EROFS. This causes the thread to loop forever.\n\nFix this by breaking out of the loop if nilfs_segctor_construct()\nreturns -EROFS. This matches the behaviour in\nnilfs_segctor_write_out(), which also handles -EROFS.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "217b967ad7887a3e1ebc08f46f6484e081acd4b4"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3bcdbdaac884a4baa59716cf9bd9470c75276e2d"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7afca8e4efbf4c455b4663c29ae59fde2f1b671"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c07e5ad6539e7e9350d5c65cbf8adb69d1711b15"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1fc6df85b4954b6fda9c351843aaca3c06f66d8d"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8"
            },
            {
              "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}