CVE-2023-53592
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-03-21

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: gpio: sifive: Fix refcount leak in sifive_gpio_probe of_irq_find_parent() returns a node pointer with refcount incremented, We should use of_node_put() on it when not needed anymore. Add missing of_node_put() to avoid refcount leak.
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Meta Information
Published
2025-10-04
Last Modified
2026-03-21
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53592
EUVD
EUVD-2025-32286
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel From 6.1 (inc) to 6.1.5 (exc)
linux linux_kernel From 5.16 (inc) to 6.0.19 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.87 (exc)
linux linux_kernel From 5.6 (inc) to 5.10.163 (exc)
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Exploitability
CWE
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KEV
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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 gpio driver for sifive hardware. Specifically, the function of_irq_find_parent() returns a node pointer with its reference count incremented, but the code did not properly decrement the reference count by calling of_node_put() when the node was no longer needed. This missing call causes a refcount leak, which was fixed by adding the missing of_node_put() call.

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 of the affected gpio driver and system conditions.

Mitigation Strategies

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

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