CVE-2023-53450 (GCVE-0-2023-53450)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:42 – Updated: 2026-05-11 19:45
VLAI
Title
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6996 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c9de560ded61faa5b754137b7753da252391c55a , < d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < ef16d8a1798db1a1604ac44ca1bd73ec6bebf483 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 185062a21976fbc38f2efd296951b02c4500cf65 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < b0fc279de4bf17e1710bb7e83906538ff8f11111 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 978e5e9111af18741449b81fefd531a622dd969a (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < d87a4e4094c9879fc8acdff8ce59fdffa979c8e0 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < bf2a16eb4e6d06124bd8436d4546f61539a65f29 (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 53c14e7cc2257191ba15425c15638fc4f8abb92b (git)
Affected: c9de560ded61faa5b754137b7753da252391c55a , < 463808f237cf73e98a1a45ff7460c2406a150a0b (git)
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Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 4.14.315 , ≤ 4.14.* (semver)
Unaffected: 4.19.283 , ≤ 4.19.* (semver)
Unaffected: 5.4.243 , ≤ 5.4.* (semver)
Unaffected: 5.10.180 , ≤ 5.10.* (semver)
Unaffected: 5.15.112 , ≤ 5.15.* (semver)
Unaffected: 6.1.29 , ≤ 6.1.* (semver)
Unaffected: 6.2.16 , ≤ 6.2.* (semver)
Unaffected: 6.3.3 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-617"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:23:14+00:00",
      "cve": "CVE-2023-53450",
      "id": "CVE-2023-53450",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext4: remove a BUG_ON in ext4_mb_release_group_pa()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53450.json",
      "version": "3"
    }
  }
}



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