What’s Vulnerable › Vulnerabilities

CVE-2023-53610: irqchip: Fix refcount leak in platform_irqchip_probe

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-04 · updated 2026-06-17

Description

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 products

• Linux kernel: from 5.9 before 5.10.173; from 5.11 before 5.15.99; from 5.16 before 6.1.16; from 6.2 before 6.2.3 — fixed in 5.10.173, 5.15.99, 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.173, 5.15.99, 6.1.16, 6.2.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4401b485855700f296cae4d0db36a52948bff4fa
• https://git.kernel.org/stable/c/6caa5a2b78f5f53c433d3a3781e53325da22f0ac
• https://git.kernel.org/stable/c/b00baffcc2561374f8fe8af873d00531f19864eb
• https://git.kernel.org/stable/c/c32fb16331f612e66a7fa8930164e0dc15725b72
• https://git.kernel.org/stable/c/ea54b608d85b7536f92238f3259730fa06cb5d21

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