CVE-2022-50572
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-10-22

Last updated on: 2025-10-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: audio-graph-card: fix refcount leak of cpu_ep in __graph_for_each_link() The of_get_next_child() returns a node with refcount incremented, and decrements the refcount of prev. So in the error path of the while loop, of_node_put() needs be called for cpu_ep.

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Meta Information

Published
2025-10-22
Last Modified
2025-10-22
Generated
2026-07-06
AI Q&A
2025-10-22
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50572
EUVD
EUVD-2022-55656

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a reference count leak in the Linux kernel's ASoC audio-graph-card component. Specifically, in the function __graph_for_each_link(), the of_get_next_child() function increments the reference count of a node but the previous node's reference count is decremented incorrectly in an error path, leading to a leak. The fix involves properly calling of_node_put() for the cpu_ep node to manage the reference count correctly.

Impact Analysis

The vulnerability causes a reference count leak in kernel memory management, which can lead to resource leaks and potentially degrade system stability or performance over time. However, there is no indication that it leads to direct security breaches such as privilege escalation or data corruption.

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