Riskcovery

CVE-2023-53450

ext4: remove a BUG_ON in ext4_mb_release_group_pa()

State
Published
Severity
Not scored
Published
Oct 1, 2025
Updated
May 11, 2026
Reserved
Sep 17, 2025

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c9de560ded61faa5b754137b7753da252391c55a to before d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5bAffected
  • c9de560ded61faa5b754137b7753da252391c55a to before ef16d8a1798db1a1604ac44ca1bd73ec6bebf483Affected
  • c9de560ded61faa5b754137b7753da252391c55a to before 185062a21976fbc38f2efd296951b02c4500cf65Affected
  • c9de560ded61faa5b754137b7753da252391c55a to before b0fc279de4bf17e1710bb7e83906538ff8f11111Affected
  • c9de560ded61faa5b754137b7753da252391c55a to before 978e5e9111af18741449b81fefd531a622dd969aAffected
  • c9de560ded61faa5b754137b7753da252391c55a to before d87a4e4094c9879fc8acdff8ce59fdffa979c8e0Affected
  • c9de560ded61faa5b754137b7753da252391c55a to before bf2a16eb4e6d06124bd8436d4546f61539a65f29Affected
  • c9de560ded61faa5b754137b7753da252391c55a to before 53c14e7cc2257191ba15425c15638fc4f8abb92bAffected
  • c9de560ded61faa5b754137b7753da252391c55a to before 463808f237cf73e98a1a45ff7460c2406a150a0bAffected
LinuxLinux
  • 2.6.25Affected
  • before 2.6.25Not affected
  • 4.14.315 through 4.14.*Not affected
  • 4.19.283 through 4.19.*Not affected
  • 5.4.243 through 5.4.*Not affected
  • 5.10.180 through 5.10.*Not affected
  • 5.15.112 through 5.15.*Not affected
  • 6.1.29 through 6.1.*Not affected
  • 6.2.16 through 6.2.*Not affected
  • 6.3.3 through 6.3.*Not affected
  • 6.4 and laterNot affected

References

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