{
  "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-2025-21898",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21898",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-04-01T15:26:50.211Z",
    "updatedAt": "2026-05-23T15:57:23.790Z",
    "importedAt": "2026-10-24T01:57:29.455Z",
    "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": "ftrace: Avoid potential division by zero in function_stat_show()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Avoid potential division by zero in function_stat_show()\n\nCheck whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64}\nproduce zero and skip stddev computation in that case.\n\nFor now don't care about rec->counter * rec->counter overflow because\nrec->time * rec->time overflow will likely happen earlier.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f0629ee3922f10112584b1898491fecc74d98b3b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5b3d32f607f0478b414b16516cf27f9170cf66c8"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca381f60a3bb7cfaa618d73ca411610bd7fc3149"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d738b53ed6cddb68e68c9874520a4bf846163b5"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "992775227843c9376773784b8b362add44592ad7"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f58a3f8e284d0bdf94164a8e61cd4e70d337a1a3"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "746cc474a95473591853927b3a9792a2d671155b"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9cdac46fa7e854e587eb5f393fe491b6d7a9bdf6"
            },
            {
              "version": "e31f7939c1c27faa5d0e3f14519eaf7c89e8a69d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a1a7eb89ca0b89dc1c326eeee2596f263291aca3"
            },
            {
              "version": "c59e74104cfd7df3ca0b5f59f1baee9c8c28b9ef",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "015f0fd0fcc338513f80044add27fa46cf71d217",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "1a2985af2a20b816a5cc41a2ddc1c4109ef6b9c6",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "7650b4b1df091815bbbbb837d308dd4154684f8a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "010a7e846d4beaf34384c40ff18d5de10106d9b4",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.4.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.291"
            },
            {
              "version": "3.16.83",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.17"
            },
            {
              "version": "4.4.209",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.9.209",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.163",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.94",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.4.291",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.179",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.81",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "version": "6.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}