net/packet: rx_owner_map depends on pg_vec

Kernel Updated 02 Oct 2025

Summary

27/12/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1002751: net/packet: rx_owner_map depends on pg_vec. Affects Kernel versions >= 61fad6816fc10fb8793a925d5c1256d1c3db0cd2, < feb116a0ecc5625d6532c616d9a10ef4ef81514b. No fix is published. How to fix ↓

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Background

The net/packet package is a component of the Linux Kernel, which is responsible for handling network packet processing. It provides functionality for receiving and transmitting network packets. The rx_owner_map feature is a part of this package and is used to map received packets to their respective owners. This feature relies on the pg_vec mechanism for efficient packet processing.

Vulnerability Detail

The vulnerability in net/packet arises from a dependency on pg_vec. If this dependency is not properly handled, it can lead to security issues. The exact impact and attack vectors are yet to be proven, but potential risks include unauthorized access, information disclosure, or denial of service. This vulnerability was introduced in version v5.6 of the Linux Kernel and has been fixed in version v5.15.11.

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 v5.15.11 or later. This update includes the necessary patch to address the issue. Instructions for updating the Linux Kernel can be found in the official documentation.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The net/packet vulnerability, which depends on pg_vec, can pose security risks such as unauthorized access, information disclosure, or denial of service. It is crucial to update the Linux Kernel to version v5.15.11 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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