Vulnerability in jfs: fix GPF in diFree

Kernel Updated 02 Oct 2025

Summary

03/08/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

UVI-2021-1001214: jfs: fix GPF in diFree. Affects Kernel versions < 42f102ea1943ecb10a0756bf75424de5d1d5beed. No fix is published. How to fix ↓

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Background

The jfs package is a component of the Linux Kernel ecosystem. It provides support for the Journaled File System (JFS) on Linux systems. JFS is a high-performance file system that offers features such as journaling, scalability, and fast recovery after system crashes. However, a vulnerability has been discovered in the diFree function of jfs, which could lead to a General Protection Fault (GPF) in certain scenarios.

Vulnerability Detail

The vulnerability in jfs arises from a flaw in the diFree function. When triggered, this flaw can result in a General Protection Fault, potentially leading to a system crash or other unexpected behavior. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been addressed in the Linux Kernel version v5.13.3 by commit 42f102ea1943ecb10a0756bf75424de5d1d5beed.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No specific workaround has been provided for this vulnerability.

Conclusion

In conclusion, the jfs package in the Linux Kernel is vulnerable to a flaw in the diFree function, which can result in a General Protection Fault. It is recommended to update the Linux Kernel to version v5.13.3 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

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