CVE-2023-53450
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
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.
INFO
Published Date :
Oct. 1, 2025, 12:15 p.m.
Last Modified :
Oct. 1, 2025, 12:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2023-53450
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Apply the provided patch for ext4_mb_release_group_pa().
- Monitor system logs for ext4_warning messages.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-53450.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53450 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53450
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2023-53450 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53450 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 01, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65 Added Reference https://git.kernel.org/stable/c/463808f237cf73e98a1a45ff7460c2406a150a0b Added Reference https://git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b Added Reference https://git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a Added Reference https://git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111 Added Reference https://git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29 Added Reference https://git.kernel.org/stable/c/d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b Added Reference https://git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0 Added Reference https://git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483