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-2022-1000890: openvswitch: Fix setting ipv6 fields causing hw csum failure. Affects Kernel versions >= 3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b, < d0251c38dff849404ac6bdedba6c1e2f89089b79. 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. It provides network connectivity between virtual machines and physical networks. The vulnerability in Openvswitch affects the handling of IPv6 fields, which can lead to hardware checksum failures. This issue can potentially cause network connectivity problems and impact the overall performance of the system.

Vulnerability Detail

The vulnerability arises from a flaw in setting IPv6 fields in Openvswitch. When certain IPv6 fields are modified, it can result in incorrect hardware checksum calculations. This can lead to packets being dropped or rejected by network hardware, causing network connectivity issues. The vulnerability was introduced in version v3.8 of the Linux Kernel and has been fixed in version v5.4.182. It is important to note that the actual impact and attack plausibility of this vulnerability have not been proven.

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 to the patched version.

Conclusion

The vulnerability in Openvswitch that causes hardware checksum failures when setting IPv6 fields can be mitigated by updating the Linux Kernel to version v5.4.182 or later. It is important to promptly apply the fix to ensure network connectivity and system performance are not affected. For further support on vulnerability remediation, please contact DevNack.com.

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