CVE-2022-50823
Reference Count Leak in Linux Tegra Clock Driver Fixed
Publication date: 2025-12-30
Last updated on: 2025-12-30
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
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.
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.