Vulnerability in Kernel: pid Reference Initialization

Kernel Updated 02 Oct 2025

Summary

25/06/2021
N/A
No i
Unrated
Not published

GSD-2021-1000777: pid: take a reference when initializing cad_pid. Affects Kernel versions >= 9ec52099e4b8678a60e9f93e41ad87885d64f3e6, < 7178be006d495ffb741c329012da289b62dddfe6. No fix is published. How to fix ↓

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Background

The Kernel is a crucial component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities, such as process management, memory management, and device drivers. The vulnerability in question pertains to the initialization of the cad_pid reference in the Kernel. This reference is not properly handled during initialization, potentially leading to security vulnerabilities.

Vulnerability Detail

The vulnerability arises from the failure to take a reference when initializing the cad_pid in the Kernel. This oversight can have various security implications, although the exact impact and attack plausibility have not been proven yet. The vulnerability was introduced in version v2.6.19 of the Kernel and has been fixed in version v5.10.43. It is crucial to update to the fixed version to mitigate the potential risks associated with this vulnerability.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.43 or later. This update includes the necessary patch to address the issue. Updating the Kernel ensures that the cad_pid reference is properly handled during initialization, reducing the risk of security vulnerabilities.

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Conclusion

The vulnerability in the Kernel related to the initialization of the cad_pid reference can potentially introduce security vulnerabilities. It is crucial to update the Linux Kernel to version v5.10.43 or later to mitigate the risks associated with this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

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FAQ

The exact impact of this vulnerability is not yet proven. However, it has the potential to introduce security vulnerabilities in the Kernel, which could be exploited by malicious actors.

You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file, such as package-lock.json, and Vulert will analyze it in real-time to identify any open-source vulnerabilities, including this one.

No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version to address the issue.

This vulnerability was introduced in version v2.6.19 of the Linux Kernel. All versions between v2.6.19 and v5.10.43 are potentially affected. The vulnerability has been fixed in version v5.10.43 and later.

You can find more information about this vulnerability in the Open Source Vulnerability Database. The vulnerability ID is GSD-2021-1000777, and the details can be accessed at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000777.json.

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How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.43 or later. This update includes the necessary patch to address the issue. Updating the Kernel ensures that the cad_pid reference is properly handled during initialization, reducing the risk of security vulnerabilities.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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