{
  "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-2024-49889",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-49889",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T18:01:24.941Z",
    "updatedAt": "2026-10-15T00:53:41.346Z",
    "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: avoid use-after-free in ext4_ext_show_leaf()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid use-after-free in ext4_ext_show_leaf()\n\nIn ext4_find_extent(), path may be freed by error or be reallocated, so\nusing a previously saved *ppath may have been freed and thus may trigger\nuse-after-free, as follows:\n\next4_split_extent\n  path = *ppath;\n  ext4_split_extent_at(ppath)\n  path = ext4_find_extent(ppath)\n  ext4_split_extent_at(ppath)\n    // ext4_find_extent fails to free path\n    // but zeroout succeeds\n  ext4_ext_show_leaf(inode, path)\n    eh = path[depth].p_hdr\n    // path use-after-free !!!\n\nSimilar to ext4_split_extent_at(), we use *ppath directly as an input to\next4_ext_show_leaf(). Fix a spelling error by the way.\n\nSame problem in ext4_ext_handle_unwritten_extents(). Since 'path' is only\nused in ext4_ext_show_leaf(), remove 'path' and use *ppath directly.\n\nThis issue is triggered only when EXT_DEBUG is defined and therefore does\nnot affect functionality.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b0cb4561fc4284d04e69c8a66c8504928ab2484e"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4999fed877bb64e3e7f9ab9996de2ca983c41928"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2eba3b0cc5b8de624918d21f32b5b8db59a90b39"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34b2096380ba475771971a778a478661a791aa15"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b114f2cc7dd5d36729d040b68432fbd0f0a8868"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d483c7cc1796bd6a80e7b3a8fd494996260f6b67"
            },
            {
              "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4e2524ba2ca5f54bdbb9e5153bea00421ef653f5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.18"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}