ARM: versatile: Missing of_node_put in dcscb_init

Kernel Updated 02 Oct 2025

Summary

28/06/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1003876: ARM: versatile: Add missing of_node_put in dcscb_init. Affects Kernel versions < a0fc05cd17617e63fc13ad0c01f3f0afd890d8ec. No fix is published. How to fix ↓

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Background

The ARM versatile package is a versatile platform for running Linux on ARM-based systems. It provides support for various ARM processors and includes device drivers, system initialization code, and other essential components. The dcscb_init function is responsible for initializing the Device Configuration Space Control Block (DCSCB) for the versatile platform.

Vulnerability Detail

The vulnerability in the ARM versatile package arises from a missing of_node_put call in the dcscb_init function. This omission can lead to a reference count leak, potentially causing a resource exhaustion issue. An attacker may be able to exploit this vulnerability to exhaust system resources, resulting in a denial of service (DoS) condition. The vulnerability has been fixed in Linux Kernel version v4.19.247 by commit a0fc05cd17617e63fc13ad0c01f3f0afd890d8ec.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The missing of_node_put in dcscb_init vulnerability in the ARM versatile package can potentially lead to a denial of service (DoS) condition. It is recommended to update the Linux Kernel to version v4.19.247 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.

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