{
  "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-2025-21909",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21909",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-04-01T15:40:48.680Z",
    "updatedAt": "2026-05-11T21:08:52.502Z",
    "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": "wifi: nl80211: reject cooked mode if it is set along with other flags",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: reject cooked mode if it is set along with other flags\n\nIt is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE\nflags simultaneously on the same monitor interface from the userspace. This\ncauses a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit\nset because the monitor interface is in the cooked state and it takes\nprecedence over all other states. When the interface is then being deleted\nthe kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing\nthat bit.\n\nFix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with\nother flags.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ea856d93794c4afa5542defd8c61f2708dc245a"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "351eb7ac53ff1cd94d893c0c4534ced2f36ae7d7"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cd1bdcb77fdc03c253137e55bae10551b3481461"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "236f41ca728f23210b31ed2d1d8a6df575a4b2d6"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ebebbb0eded2ed9a1abfa31962f6fb699e6abce7"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "521e55c2b0d6028861ac0a2d06aa57bb0e3ac486"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ac4860141300581d3e2f6c6dafa37220f7ea9f65"
            },
            {
              "version": "66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "49f27f29446a5bfe633dd2cc0cfebd48a1a5e77f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.26",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.26"
            },
            {
              "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": "6.1.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "version": "6.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}