ocfs2: Fix Data Corruption by fallocate

Kernel Updated 02 Oct 2025

Summary

25/06/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1000781: ocfs2: fix data corruption by fallocate. Affects Kernel versions < c8d5faee46242c3f33b8a71a4d7d52214785bfcc. No fix is published. How to fix ↓

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Background

The ocfs2 package is a component of the Linux Kernel ecosystem. It is responsible for providing a distributed file system for Linux clusters. ocfs2 allows multiple nodes to access and modify the same file system simultaneously. It offers features like shared storage, high availability, and scalability. However, a vulnerability has been discovered in ocfs2 related to the fallocate system call.

Vulnerability Detail

The vulnerability in ocfs2 arises from a flaw in the fallocate system call implementation. This flaw can lead to data corruption within the file system. An attacker could potentially exploit this vulnerability to manipulate files and cause data loss or unauthorized modifications. The vulnerability was introduced in an unknown version and has been fixed in Linux Kernel version v5.10.43 by commit c8d5faee46242c3f33b8a71a4d7d52214785bfcc.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.43 or later. This can be done by obtaining the updated kernel source code from the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and compiling it for the target system. Alternatively, users can wait for their Linux distribution to provide an updated package containing the fixed version of the kernel.

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Workaround

There is no known workaround for this vulnerability. It is essential to apply the fix by updating the Linux Kernel to the recommended version.

Conclusion

The ocfs2 package in the Linux Kernel is vulnerable to data corruption caused by the fallocate system call. It is crucial to update the Linux Kernel to version v5.10.43 or later to mitigate this vulnerability. No known workaround is available. For further support on vulnerability remediation, contact DevNack.com.

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