net: dsa: fix a crash if ->get_sset_count() fails

Kernel Updated 02 Oct 2025

Summary

04/06/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1000628: net: dsa: fix a crash if ->get_sset_count() fails. Affects Kernel versions >= badf3ada60ab8f76f9488dc8f5c0c57f70682f5a, < ce5355f140a7987011388c7e30c4f8fbe180d3e8. No fix is published. How to fix ↓

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Background

The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for software to interact with the hardware. The specific vulnerability occurs in the DSA (Distributed Switch Architecture) module of the Kernel. DSA is a framework for managing Ethernet switches in a distributed manner. The vulnerability arises when the ->get_sset_count() function fails, leading to a crash in the system.

Vulnerability Detail

The vulnerability in the DSA module of the Kernel occurs when the ->get_sset_count() function fails. This can result in a system crash, potentially leading to a denial-of-service (DoS) situation. The vulnerability was introduced in version v4.7 of the Linux Kernel and has been fixed in version v5.4.124. The impact and attack plausibility of this vulnerability have not been proven yet.

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 update the Linux Kernel to the fixed version.

Conclusion

The vulnerability in the DSA module of the Linux Kernel can result in a system crash if the ->get_sset_count() function fails. It is crucial to update the Kernel to version v5.4.124 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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