Bug 2401472 (CVE-2023-53610)

Summary: CVE-2023-53610 kernel: irqchip: Fix refcount leak in platform_irqchip_probe
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-10-04 16:02:20 UTC 
In the Linux kernel, the following vulnerability has been resolved:

irqchip: Fix refcount leak in platform_irqchip_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.
Comment 1 Alexander B 2025-10-06 16:47:54 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100433-CVE-2023-53610-3f0f@gregkh/T