{
  "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-2025-68794",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68794",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2026-01-13T15:29:05.553Z",
    "updatedAt": "2026-10-19T18:05:07.542Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": "iomap: adjust read range correctly for non-block-aligned positions",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\niomap: adjust read range correctly for non-block-aligned positions\n\niomap_adjust_read_range() assumes that the position and length passed in\nare block-aligned. This is not always the case however, as shown in the\nsyzbot generated case for erofs. This causes too many bytes to be\nskipped for uptodate blocks, which results in returning the incorrect\nposition and length to read in. If all the blocks are uptodate, this\nunderflows length and returns a position beyond the folio.\n\nFix the calculation to also take into account the block offset when\ncalculating how many bytes can be skipped for uptodate blocks.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce20f49ac9194cf81a77f01d1c316d7c17ae753c"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "275b37a1e5c2c8abd313e8075f6aec9a349f291b"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b8c9f25fd84328c5fcc4f70c6d1e8f1d4787eaac"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "82b60ffbb532d919959702768dca04c3c0500ae5"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "12053695c8ef5410e8cc6c9ed4c0db9cd9c82b3e"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "142194fb21afe964d2d194cab1fc357cbf87e899"
            },
            {
              "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7aa6bc3e8766990824f66ca76c19596ce10daf3e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "5.10.267",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.218",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.185",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.120",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.64",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}