---
id: CVE-2023-53610
title: 'irqchip: Fix refcount leak in platform_irqchip_probe'
summary: |-
  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 …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= f8410e626569324cfe831aaecc0504cafc12b471 <
    b00baffcc2561374f8fe8af873d00531f19864eb
  - >-
    Linux >= f8410e626569324cfe831aaecc0504cafc12b471 <
    4401b485855700f296cae4d0db36a52948bff4fa
  - >-
    Linux >= f8410e626569324cfe831aaecc0504cafc12b471 <
    ea54b608d85b7536f92238f3259730fa06cb5d21
  - >-
    Linux >= f8410e626569324cfe831aaecc0504cafc12b471 <
    c32fb16331f612e66a7fa8930164e0dc15725b72
  - >-
    Linux >= f8410e626569324cfe831aaecc0504cafc12b471 <
    6caa5a2b78f5f53c433d3a3781e53325da22f0ac
  - Linux 5.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:25:34.747164Z'
published: '2025-10-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:31:17.432Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53610'
references:
  - url: 'https://git.kernel.org/stable/c/b00baffcc2561374f8fe8af873d00531f19864eb'
  - url: 'https://git.kernel.org/stable/c/4401b485855700f296cae4d0db36a52948bff4fa'
  - url: 'https://git.kernel.org/stable/c/ea54b608d85b7536f92238f3259730fa06cb5d21'
  - url: 'https://git.kernel.org/stable/c/c32fb16331f612e66a7fa8930164e0dc15725b72'
  - url: 'https://git.kernel.org/stable/c/6caa5a2b78f5f53c433d3a3781e53325da22f0ac'
tags:
  - cve.org
epss: 0.00148
epssPercentile: 0.04025
ingestedAt: '2026-11-05T22:38:31.818Z'
---

## Overview

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.

## Affected

- `Linux >= f8410e626569324cfe831aaecc0504cafc12b471 < b00baffcc2561374f8fe8af873d00531f19864eb`
- `Linux >= f8410e626569324cfe831aaecc0504cafc12b471 < 4401b485855700f296cae4d0db36a52948bff4fa`
- `Linux >= f8410e626569324cfe831aaecc0504cafc12b471 < ea54b608d85b7536f92238f3259730fa06cb5d21`
- `Linux >= f8410e626569324cfe831aaecc0504cafc12b471 < c32fb16331f612e66a7fa8930164e0dc15725b72`
- `Linux >= f8410e626569324cfe831aaecc0504cafc12b471 < 6caa5a2b78f5f53c433d3a3781e53325da22f0ac`
- `Linux 5.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.