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-2022-1004715: ARM: meson: Fix refcount leak in meson_smp_prepare_cpus. Affects Kernel versions >= d850f3e5d2966e5c9eb55f66181cee960737e04c, < 3cf8ece9113242c10f83c7675ea4f4f67959ee43. No fix is published. How to fix ↓

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Background

The ARM meson package is a component of the Linux Kernel, which is responsible for supporting ARM-based systems. It provides various functionalities and drivers specific to ARM architecture. One of the functions within the meson package is meson_smp_prepare_cpus, which is used to prepare the CPUs for symmetric multiprocessing (SMP) on ARM systems.

Vulnerability Detail

The vulnerability identified in the ARM meson package is a refcount leak in the meson_smp_prepare_cpus function. This vulnerability was introduced in version v4.15 of the Linux Kernel by commit d850f3e5d2966e5c9eb55f66181cee960737e04c and is fixed in version v5.4.205 by commit 3cf8ece9113242c10f83c7675ea4f4f67959ee43. The refcount leak can lead to a resource leak, potentially causing system instability or denial of service (DoS) attacks. The vulnerability allows an attacker to manipulate the refcount, leading to improper handling of resources and potential memory leaks.

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

In conclusion, the ARM meson package in the Linux Kernel is vulnerable to a refcount leak in the meson_smp_prepare_cpus function. This vulnerability can lead to resource leaks and potential system instability or denial of service attacks. It is recommended to update the Linux Kernel to version v5.4.205 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.

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