ARM: meson: Fix refcount leak in meson_smp_prepare_cpus

Kernel Updated 02 Oct 2025

Summary

31/07/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1004210: ARM: meson: Fix refcount leak in meson_smp_prepare_cpus. Affects Kernel versions >= d850f3e5d2966e5c9eb55f66181cee960737e04c, < c5fbf4f74c94fd60d5e9bf9f7f8268c3601562ca. No fix is published. How to fix ↓

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Background

The ARM meson package is a component of the Linux Kernel. It provides support for ARM-based systems, specifically the Amlogic Meson SoCs. These SoCs are commonly used in various devices such as set-top boxes, smart TVs, and media players. The meson_smp_prepare_cpus function in the ARM meson package is responsible for preparing the CPUs for symmetric multiprocessing (SMP) on these systems.

Vulnerability Detail

The vulnerability in the ARM meson package is a refcount leak in the meson_smp_prepare_cpus function. This leak can lead to a resource exhaustion issue, potentially causing system instability or denial of service. The vulnerability was introduced in version v4.15 of the Linux Kernel and was fixed in version v5.18.11. The issue arises from a missing refcount decrement when an error occurs during the preparation of CPUs for SMP.

How To Fix

No fixed version is published for this vulnerability.

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Conclusion

In conclusion, the ARM meson package in the Linux Kernel was found to have a refcount leak vulnerability in the meson_smp_prepare_cpus function. This vulnerability can lead to resource exhaustion and potential system instability or denial of service. It is recommended to update the Linux Kernel to version v5.18.11 or later to fix this issue. For further support on vulnerability remediation, please contact DevNack.com.

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