CVE-2023-53191
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains 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
2025-09-15
Last Modified
2025-12-02
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-14
NVD
CVE-2023-53191
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.6 (inc) to 4.14.308 (exc)
linux linux_kernel From 4.15 (inc) to 4.19.276 (exc)
linux linux_kernel From 4.20 (inc) to 5.4.235 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.173 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.99 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.16 (exc)
linux linux_kernel From 6.2 (inc) to 6.2.3 (exc)
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Exploitability
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Executive Summary

This vulnerability is a reference count leak in the Linux kernel's irqchip/alpine-msi component. 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 using of_node_put() when the node was 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 as resources are not properly released.

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