af_packet: Fix data-race in packet_setsockopt / packet_setsockopt

Kernel Updated 02 Oct 2025

Summary

18/02/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000087: af_packet: fix data-race in packet_setsockopt / packet_setsockopt. Affects Kernel versions >= 47dceb8ecdc1c3ad1818dfea3d659a05b74c3fc2, < bfce19548a2ba1e007c84fe725d70a9c3caf46a1. No fix is published. How to fix ↓

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Background

The af_packet package is a component of the Linux Kernel, which is responsible for handling network packet transmission and reception. It provides a socket-based interface for user-space applications to interact with the network stack. The vulnerability in question affects the packet_setsockopt and packet_setsockopt functions within the af_packet package.

Vulnerability Detail

The vulnerability is a data race issue present in the packet_setsockopt and packet_setsockopt functions of the af_packet package. This data race can lead to unexpected behavior and potential security vulnerabilities. Although the impact and attack plausibility have not been proven, it is crucial to address this issue to ensure the stability and security of the system. The vulnerability was introduced in version v4.3 of the Linux Kernel and has been fixed in version v4.9.300.

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 af_packet package in the Linux Kernel is affected by a data race vulnerability in the packet_setsockopt and packet_setsockopt functions. To mitigate this issue, it is recommended to update the Linux Kernel to version v4.9.300 or later. For further support on vulnerability remediation, please contact DevNack.com.

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