Openvswitch: Fix Setting IPv6 Fields Causing HW Csum Failure

Kernel Updated 02 Oct 2025

Summary

18/03/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000743: openvswitch: Fix setting ipv6 fields causing hw csum failure. Affects Kernel versions >= 3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b, < a142b6991367efe9e883db581c96b6fc3473dab5. No fix is published. How to fix ↓

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Background

Openvswitch is a software-based virtual switch that is commonly used in virtualized environments to connect virtual machines (VMs) and physical networks. It provides network connectivity and enables the implementation of advanced networking features. Openvswitch is a part of the Linux Kernel and is widely used in various Linux distributions. This vulnerability affects the Openvswitch module in the Linux Kernel.

Vulnerability Detail

The vulnerability in Openvswitch is related to setting IPv6 fields, which can lead to hardware checksum (hw csum) failures. When certain IPv6 fields are set incorrectly, it can result in the failure of hardware checksum calculations. This can potentially lead to network connectivity issues, data corruption, or even denial of service (DoS) conditions. The vulnerability was introduced in version v3.8 of the Linux Kernel and has been fixed in version v5.16.12.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability. The recommended approach is to apply the fix by updating the Linux Kernel.

Conclusion

The Openvswitch vulnerability related to setting IPv6 fields causing hardware checksum failures can have significant implications for network connectivity and data integrity. It is crucial to update the Linux Kernel to version v5.16.12 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.

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