ocfs2: Fix Data Corruption by fallocate

Kernel Updated 02 Oct 2025

Summary

25/06/2021
N/A
No i
Unrated
Not published

GSD-2021-1000743: ocfs2: fix data corruption by fallocate. Affects Kernel versions < cec4e857ffaa8c447f51cd8ab4e72350077b6770. No fix is published. How to fix ↓

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Background

ocfs2 is a file system implemented in the Linux Kernel. It is designed for use in clustered environments, providing shared access to files across multiple nodes. The fallocate system call is used to allocate space for a file, but a vulnerability in ocfs2 allows for data corruption when using fallocate.

Vulnerability Detail

The vulnerability in ocfs2 allows for data corruption when using the fallocate system call. This can occur due to a flaw in the implementation of fallocate in ocfs2. An attacker could exploit this vulnerability to corrupt data on the file system, potentially leading to data loss or unauthorized access to sensitive information.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

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

Conclusion

The vulnerability in ocfs2 that allows for data corruption by fallocate can be fixed by updating to the latest version of the Linux Kernel. It is recommended to apply the fix as soon as possible to ensure the security and integrity of the file system. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

ocfs2 is a file system implemented in the Linux Kernel. It provides shared access to files in clustered environments.

The fallocate system call is used to allocate space for a file on a file system.

The vulnerability in ocfs2 occurs due to a flaw in the implementation of the fallocate system call.

The potential consequences of this vulnerability include data corruption, data loss, and unauthorized access to sensitive information.

To fix this vulnerability, update to the Linux Kernel version v4.19.194 or later.

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How To Fix

No fixed version is published for this vulnerability.

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