What’s Vulnerable › Vulnerabilities

CVE-2023-53164: irqchip/ti-sci: Fix refcount leak in ti_sci_intr_irq_domain_probe

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/ti-sci: Fix refcount leak in ti_sci_intr_irq_domain_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 5.2 before 5.4.235; from 5.5 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, 5.4.235, 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.173, 5.15.99, 5.4.235, 6.1.16. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/02298b7bae12936ca313975b02e7f98b06670d37
• https://git.kernel.org/stable/c/07fceab32096c1290b491f2fcaace03f78e2db37
• https://git.kernel.org/stable/c/4ae40c20f1519e1767ba01609abc7e8d6485fc0c
• https://git.kernel.org/stable/c/856fc2195494d1175ada0f1f46f92c5b28ce12eb
• https://git.kernel.org/stable/c/a0d91a48e1a020fb636f0fcaf44672f123bb0799
• https://git.kernel.org/stable/c/df8d3536b660c6c6f6b25fa8b157e9b38ad78142

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