CVE-2022-50311
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-04

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: cxl: Fix refcount leak in cxl_calc_capp_routing of_get_next_parent() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. This function only calls of_node_put() in normal path, missing it in the error path. Add missing of_node_put() to avoid refcount leak.
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Meta Information
Published
2025-09-15
Last Modified
2025-12-04
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50311
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.12 (inc) to 4.14.303 (exc)
linux linux_kernel From 4.15 (inc) to 4.19.270 (exc)
linux linux_kernel From 4.20 (inc) to 5.4.229 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.163 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.86 (exc)
linux linux_kernel From 5.16 (inc) to 6.0.16 (exc)
linux linux_kernel From 6.1 (inc) to 6.1.2 (exc)
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Executive Summary

This vulnerability is a refcount leak in the Linux kernel's cxl_calc_capp_routing function. The function of_get_next_parent() returns a node pointer with an incremented reference count, which should be decremented using of_node_put() when the node is no longer needed. However, the function only calls of_node_put() in the normal execution path and misses it in the error path, causing a reference count leak.

Impact Analysis

The refcount leak can lead to resource leaks in the kernel, potentially causing increased memory usage or instability over time as references are not properly released. This could degrade system performance or lead to unexpected behavior.

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