CVE-2022-50823
Unknown Unknown - Not Provided

Reference Count Leak in Linux Tegra Clock Driver Fixed

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: clk: tegra: Fix refcount leak in tegra114_clock_init of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50823
EUVD
EUVD-2022-55875

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 Tegra clock initialization code (tegra114_clock_init). The function of_find_matching_node() returns a node pointer with its reference count incremented, but the code was missing a call to of_node_put() to decrement the reference count when the node is no longer needed. This missing call causes a reference count leak.

Impact Analysis

The reference count leak can lead to resource leaks in the kernel, potentially causing increased memory usage or instability over time. However, the exact impact depends on the usage context and system workload.

Mitigation Strategies

To mitigate this vulnerability, update your Linux kernel to a version that includes the fix for the refcount leak in tegra114_clock_init. This fix involves adding the missing of_node_put() call to avoid the refcount leak. Applying the latest kernel patches or updates from your Linux distribution that address this issue is recommended.

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