CVEvulnerability

CVE-2023-53450

5.5 MEDIUM Published 2025-10-01 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-10-01
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-617

Description

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.

Affected configurations

• linux linux kernel (>= 2.6.25 < 4.14.315) • linux linux kernel (>= 4.15 < 4.19.283) • linux linux kernel (>= 4.20 < 5.4.243) • linux linux kernel (>= 5.5 < 5.10.180) • linux linux kernel (>= 5.11 < 5.15.112) • linux linux kernel (>= 5.16 < 6.1.29) • linux linux kernel (>= 6.2 < 6.2.16) • linux linux kernel (>= 6.3 < 6.3.3) • linux linux kernel 6.4

Related

Weakness · CWE (1)

  • CWE-617 Reachable Assertion weakness

References