Refcount Leak in rockchip_grf_init in Kernel
Summary
GSD-2022-1003535: soc: rockchip: Fix refcount leak in rockchip_grf_init. Affects Kernel versions >= 4c58063d4258f6beb4fd5647db6b58f49e337c8f, < 5b3e990f85eb034faa461e691e719e8ce9e2a3c8. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities for the proper functioning of the system. The rockchip_grf_init function is a part of the Kernel's rockchip subsystem, which handles the Rockchip system-on-chip (SoC) devices. This vulnerability specifically affects the rockchip_grf_init function, leading to a refcount leak.
Refcount leaks occur when a reference count is not properly incremented or decremented, resulting in a resource not being released when it should be. In this case, the refcount leak in rockchip_grf_init can lead to resource exhaustion and potential denial-of-service (DoS) attacks.
Vulnerability Detail
The vulnerability in rockchip_grf_init was introduced in version v4.11 of the Linux Kernel by commit 4c58063d4258f6beb4fd5647db6b58f49e337c8f. It was fixed in version v5.10.122 by commit 5b3e990f85eb034faa461e691e719e8ce9e2a3c8. The vulnerability allows an attacker to cause a refcount leak, potentially leading to resource exhaustion and DoS attacks. The impact and attack plausibility of this vulnerability have not been proven yet.
To exploit this vulnerability, an attacker would need to have access to a system running a vulnerable version of the Kernel and have the ability to trigger the specific conditions that result in the refcount leak. The specific technical details of the vulnerability are not provided in the available information.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The refcount leak vulnerability in rockchip_grf_init in the Linux Kernel can potentially lead to resource exhaustion and denial-of-service attacks. It is crucial to update the Kernel to version v5.10.122 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability can potentially lead to resource exhaustion and denial-of-service (DoS) attacks. However, the actual impact and attack plausibility have not been proven yet.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the fixed version v5.10.122 or later.
The available information does not provide details on whether this vulnerability can be exploited remotely. It is advisable to keep the Kernel updated to the latest version to mitigate potential security risks.
For more information about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003535.json
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