CVE-2022-50020
Linux ext4 Partial Cluster Resize BUG
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.
INFO
Published Date :
June 18, 2025, 11:15 a.m.
Last Modified :
June 18, 2025, 1:46 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the affected packages.
- Update the kernel package.
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-2022-50020.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50020 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-2022-50020
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50020 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50020 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
Jun. 18, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock. Added Reference https://git.kernel.org/stable/c/0082e99a9074ff88eff729c70c93454c8588d8e1 Added Reference https://git.kernel.org/stable/c/53f62a4201be1cfc1e3c971e566888b182c3ffb0 Added Reference https://git.kernel.org/stable/c/69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd Added Reference https://git.kernel.org/stable/c/72b850a2a996f72541172e7cf686d54a2b29bcd8 Added Reference https://git.kernel.org/stable/c/7bdfb01fc5f6b3696728aeb527c50386e0ee09a1 Added Reference https://git.kernel.org/stable/c/80288883294c5b4ed18bae0d8bd9c4a12f297074 Added Reference https://git.kernel.org/stable/c/952b3dc02baaae6a69c71c0aca23e06741182d9a Added Reference https://git.kernel.org/stable/c/a6805b3dcf5cd41f2ae3a03dca43411135b99849