CVE-2022-50837
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BaseFortify

Publication date: 2025-12-30

Last updated on: 2025-12-31

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path If dsa_tag_8021q_setup() fails, for example due to the inability of the device to install a VLAN, the tag_8021q context of the switch will leak. Make sure it is freed on the error path.
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Meta Information
Published
2025-12-30
Last Modified
2025-12-31
Generated
2026-06-16
AI Q&A
2025-12-30
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50837
EUVD
EUVD-2022-55861
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel involves the dsa_tag_8021q component. Specifically, if the function dsa_tag_8021q_setup() fails, such as when the device cannot install a VLAN, the tag_8021q context of the switch may leak because it is not properly freed on the error path. This means that resources associated with the tag_8021q context are not released correctly when an error occurs.

Impact Analysis

The impact of this vulnerability is a resource leak in the Linux kernel's network switch tagging mechanism. This could potentially lead to increased memory usage or resource exhaustion on the affected device, which might degrade system performance or stability over time.

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