ghsa-26x9-cxwc-jfqw
Vulnerability from github
Published
2024-12-24 12:30
Modified
2025-09-19 21:31
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

exfat: fix out-of-bounds access of directory entries

In the case of the directory size is greater than or equal to the cluster size, if start_clu becomes an EOF cluster(an invalid cluster) due to file system corruption, then the directory entry where ei->hint_femp.eidx hint is outside the directory, resulting in an out-of-bounds access, which may cause further file system corruption.

This commit adds a check for start_clu, if it is an invalid cluster, the file or directory will be treated as empty.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53147"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-24T12:15:22Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix out-of-bounds access of directory entries\n\nIn the case of the directory size is greater than or equal to\nthe cluster size, if start_clu becomes an EOF cluster(an invalid\ncluster) due to file system corruption, then the directory entry\nwhere ei-\u003ehint_femp.eidx hint is outside the directory, resulting\nin an out-of-bounds access, which may cause further file system\ncorruption.\n\nThis commit adds a check for start_clu, if it is an invalid cluster,\nthe file or directory will be treated as empty.",
  "id": "GHSA-26x9-cxwc-jfqw",
  "modified": "2025-09-19T21:31:15Z",
  "published": "2024-12-24T12:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53147"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/184fa506e392eb78364d9283c961217ff2c0617b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ddd1cb2b458ff6a193bc845f408dfff217db29e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0120d6463368378539ef928cf067d02372efb8c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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