{
  "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-2022-49343",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49343",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:10:59.970Z",
    "updatedAt": "2026-08-05T08:54:50.163Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "ext4: avoid cycles in directory h-tree",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid cycles in directory h-tree\n\nA maliciously corrupted filesystem can contain cycles in the h-tree\nstored inside a directory. That can easily lead to the kernel corrupting\ntree nodes that were already verified under its hands while doing a node\nsplit and consequently accessing unallocated memory. Fix the problem by\nverifying traversed block numbers are unique.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e157c8f87e8fac112d6c955e69a60cdb9bc80a60"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ff4cafa51762da3824881a9000ca421d4b78b138"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d5a16a6df2c16eaf4de04948553ef0089dee463f"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6084240bfc44bf265ab6ae7d96980469b05be0f1"
            },
            {
              "version": "ac27a0ec112a089f1a5102bc8dffc79c8c815571",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ba733f879c2a88910744647e41edeefbc0d92b2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.19"
            },
            {
              "version": "4.14.283",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.247",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.17.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}