NFS: Unneeded Check Removal in decode_devicenotify_args()

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1002495: NFS: remove unneeded check in decode_devicenotify_args(). Affects Kernel versions >= a4f743a6bb201662962fa888e3f978583d61691e, < e893ca9a5d1738a36d3a54c05d283fecd91fcd65. No fix is published. How to fix ↓

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Background

The NFS (Network File System) package is a distributed file system protocol that allows clients to access files and directories on remote servers. It is a widely used package in the Linux kernel ecosystem. The vulnerability in question is related to an unneeded check in the decode_devicenotify_args() function within the NFS package.

Vulnerability Detail

The vulnerability involves the presence of an unnecessary check in the decode_devicenotify_args() function of the NFS package. This check can potentially lead to security vulnerabilities, although the actual impact and attack plausibility have not been proven. The vulnerability was introduced in version v4.0 of the Linux Kernel and has been fixed in version v4.9.311. The commit e893ca9a5d1738a36d3a54c05d283fecd91fcd65 addresses this issue. For more details, please refer to the provided references link.

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 v4.9.311 or later. This can be done by pulling the latest changes from the official Linux Kernel repository and rebuilding the kernel. Alternatively, users can wait for their Linux distribution to provide an updated package that includes the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

In conclusion, the NFS package in the Linux Kernel has a vulnerability related to an unneeded check in the decode_devicenotify_args() function. The impact and attack plausibility of this vulnerability have not been proven. It is recommended to update the Linux Kernel to version v4.9.311 or later to mitigate this issue. For further support on vulnerability remediation, please contact DevNack.com.

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