{
  "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-2026-97534",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-97534",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-25T10:21:33.792Z",
    "updatedAt": "2026-10-21T12:53:09.412Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "f2fs: accurately adjust free_sections during free_segment_range",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: accurately adjust free_sections during free_segment_range\n\nIn free_segment_range(), MAIN_SECS(sbi) is temporarily reduced by `secs`\nto restrict block allocation to the safe remaining main area while valid\nblocks in the truncated range are evacuated by GC.\n\nHowever, FREE_I(sbi)->free_sections tracks the total number of free\nsections across the whole filesystem. If any sections within the\ntruncated range were already free upon entering free_segment_range(),\nfailing to deduct them from free_sections causes the filesystem to\noverestimate available free sections in the active, reduced main area.\nThis leads to inconsistent free section accounting during GC data\nmigration and can trigger unexpected allocation failures or assertion\nerrors when space is tight.\n\nFix this by calculating the number of already-free sections in the\ntruncated range, deducting them from free_sections upon entering\nfree_segment_range(), and restoring them on exit.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b4b10061ef98c583bcf82a4200703fbaa98c18dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "64a7ed42e9766886dd7300597d90366dfb7a1e53"
            },
            {
              "version": "b4b10061ef98c583bcf82a4200703fbaa98c18dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "faeb0a20bdd113311519b598dcc075af3b6fb366"
            },
            {
              "version": "b4b10061ef98c583bcf82a4200703fbaa98c18dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca31116fad0954c61a0d38163cc51c48e4981b75"
            },
            {
              "version": "b4b10061ef98c583bcf82a4200703fbaa98c18dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8a123a10770d2132d046748f20f02baa8d5539a1"
            },
            {
              "version": "b4b10061ef98c583bcf82a4200703fbaa98c18dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c963d1738fdca400082ff5f9d99e083de4f4e70"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.8"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}