{
  "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-2024-49983",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-49983",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T18:02:28.474Z",
    "updatedAt": "2026-08-05T11:40:52.589Z",
    "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": "ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free\n\nWhen calling ext4_force_split_extent_at() in ext4_ext_replay_update_ex(),\nthe 'ppath' is updated but it is the 'path' that is freed, thus potentially\ntriggering a double-free in the following process:\n\next4_ext_replay_update_ex\n  ppath = path\n  ext4_force_split_extent_at(&ppath)\n    ext4_split_extent_at\n      ext4_ext_insert_extent\n        ext4_ext_create_new_leaf\n          ext4_ext_grow_indepth\n            ext4_find_extent\n              if (depth > path[0].p_maxdepth)\n                kfree(path)                 ---> path First freed\n                *orig_path = path = NULL    ---> null ppath\n  kfree(path)                               ---> path double-free !!!\n\nSo drop the unnecessary ppath and use path directly to avoid this problem.\nAnd use ext4_find_extent() directly to update path, avoiding unnecessary\nmemory allocation and freeing. Also, propagate the error returned by\next4_find_extent() instead of using strange error codes.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c26d9e53e5fbacda0732a577e97c5a5b7882aaf"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a34bed978364114390162c27e50fca50791c568d"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6367d3f04c69e2b8770b8137bd800e0784b0abbc"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1b558006d98b7b0b730027be0ee98973dd10ee0d"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ff710662e8d86a63a39b334e9ca0cb10e5c14b0"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "63adc9016917e6970fb0104ee5fd6770f02b2d80"
            },
            {
              "version": "8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "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": "6.6.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.10.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.10.*"
            },
            {
              "version": "6.11.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}