{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c9de560ded61faa5b754137b7753da252391c55a"
            },
            {
              "fixed": "d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b"
            },
            {
              "fixed": "ef16d8a1798db1a1604ac44ca1bd73ec6bebf483"
            },
            {
              "fixed": "185062a21976fbc38f2efd296951b02c4500cf65"
            },
            {
              "fixed": "b0fc279de4bf17e1710bb7e83906538ff8f11111"
            },
            {
              "fixed": "978e5e9111af18741449b81fefd531a622dd969a"
            },
            {
              "fixed": "d87a4e4094c9879fc8acdff8ce59fdffa979c8e0"
            },
            {
              "fixed": "bf2a16eb4e6d06124bd8436d4546f61539a65f29"
            },
            {
              "fixed": "53c14e7cc2257191ba15425c15638fc4f8abb92b"
            },
            {
              "fixed": "463808f237cf73e98a1a45ff7460c2406a150a0b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53450.json"
  },
  "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't\ncrash the kernel.",
  "id": "CVE-2023-53450",
  "modified": "2026-04-01T23:08:03.392859272Z",
  "published": "2025-10-01T11:42:22.074Z",
  "references": [
    {
      "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"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53450.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53450"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "ext4: remove a BUG_ON in ext4_mb_release_group_pa()"
}