{
  "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-2025-21817",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21817",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-27T20:04:15.988Z",
    "updatedAt": "2026-09-07T15:44:41.250Z",
    "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": "block: mark GFP_NOIO around sysfs ->store()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: mark GFP_NOIO around sysfs ->store()\n\nsysfs ->store is called with queue freezed, meantime we have several\n->store() callbacks(update_nr_requests, wbt, scheduler) to allocate\nmemory with GFP_KERNEL which may run into direct reclaim code path,\nthen potential deadlock can be caused.\n\nFix the issue by marking NOIO around sysfs ->store()",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1645cd7fd42c236c952e9228badcac4fea1829ea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a09280c39ea54080daf19cfaf4a3121a8d17d5cd"
            },
            {
              "version": "8985da5481562e96b95e94ed8e5cc9b6565eb82b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2566ce907e5d5db8a039647208e029ce559baa31"
            },
            {
              "version": "c99f66e4084a62a2cc401c4704a84328aeddc9ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6.12.96",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.109"
            },
            {
              "version": "6.13.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.13.3"
            }
          ]
        }
      ]
    }
  }
}