ghsa-x72c-72g3-7ffp
Vulnerability from github
Published
2025-10-01 12:30
Modified
2025-10-01 12:30
Details

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

ext4: remove a BUG_ON in ext4_mb_release_group_pa()

If a malicious fuzzer overwrites the ext4 superblock while it is mounted such that the s_first_data_block is set to a very large number, the calculation of the block group can underflow, and trigger a BUG_ON check. Change this to be an ext4_warning so that we don't crash the kernel.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53450"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-01T12:15:41Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: remove a BUG_ON in ext4_mb_release_group_pa()\n\nIf a malicious fuzzer overwrites the ext4 superblock while it is\nmounted such that the s_first_data_block is set to a very large\nnumber, the calculation of the block group can underflow, and trigger\na BUG_ON check.  Change this to be an ext4_warning so that we don\u0027t\ncrash the kernel.",
  "id": "GHSA-x72c-72g3-7ffp",
  "modified": "2025-10-01T12:30:29Z",
  "published": "2025-10-01T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53450"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/463808f237cf73e98a1a45ff7460c2406a150a0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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