{
  "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-2024-47740",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-47740",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T12:14:09.171Z",
    "updatedAt": "2026-08-05T11:39:50.713Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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: Require FMODE_WRITE for atomic write ioctls",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: Require FMODE_WRITE for atomic write ioctls\n\nThe F2FS ioctls for starting and committing atomic writes check for\ninode_owner_or_capable(), but this does not give LSMs like SELinux or\nLandlock an opportunity to deny the write access - if the caller's FSUID\nmatches the inode's UID, inode_owner_or_capable() immediately returns true.\n\nThere are scenarios where LSMs want to deny a process the ability to write\nparticular files, even files that the FSUID of the process owns; but this\ncan currently partially be bypassed using atomic write ioctls in two ways:\n\n - F2FS_IOC_START_ATOMIC_REPLACE + F2FS_IOC_COMMIT_ATOMIC_WRITE can\n   truncate an inode to size 0\n - F2FS_IOC_START_ATOMIC_WRITE + F2FS_IOC_ABORT_ATOMIC_WRITE can revert\n   changes another process concurrently made to a file\n\nFix it by requiring FMODE_WRITE for these operations, just like for\nF2FS_IOC_MOVE_RANGE. Since any legitimate caller should only be using these\nioctls when intending to write into the file, that seems unlikely to break\nanything.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "700f3a7c7fa5764c9f24bbf7c78e0b6e479fa653"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4ce87674c3a6b4d3b3d45f85b584ab8618a3cece"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "000bab8753ae29a259feb339b99ee759795a48ac"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "88ff021e1fea2d9b40b2d5efd9013c89f7be04ac"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "32f348ecc149e9ca70a1c424ae8fa9b6919d2713"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5e0de753bfe87768ebe6744d869caa92f35e5731"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f3bfac2cabf5333506b263bc0c8497c95302f32d"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4583290898c13c2c2e5eb8773886d153c2c5121d"
            },
            {
              "version": "88b88a66797159949cec32eaab12b4968f6fae2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4f5a100f87f32cb65d4bb1ad282a08c92f6f591e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.18"
            },
            {
              "version": "4.19.323",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.285",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.227",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.10.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.10.*"
            },
            {
              "version": "6.11.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}