Vulnerability in Kernel: io_uring link timeout refs

Kernel Updated 02 Oct 2025

Summary

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

GSD-2021-1000804: io_uring: fix link timeout refs. Affects Kernel versions >= 9ae1f8dd372e0e4c020b345cf9e09f519265e981, < 876808dba2ff7509bdd7f230c4f374a0caf4f410. 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 communication between hardware and software. It provides essential functionalities and services to enable the proper functioning of the system. One of its features is the io_uring subsystem, which allows for efficient asynchronous I/O operations. However, a vulnerability has been discovered in the io_uring subsystem that could potentially be exploited by attackers.

Vulnerability Detail

The vulnerability in the io_uring subsystem of the Kernel arises from a flaw introduced in version v5.12. It affects the link timeout references, which could lead to unexpected behavior or system crashes. Although the impact and attack plausibility have not been proven, it is essential to address this vulnerability to ensure the stability and security of the system. The vulnerability has been fixed in Linux Kernel version v5.12.10.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No workaround has been provided for this vulnerability.

Conclusion

The vulnerability in the io_uring subsystem of the Kernel could potentially lead to unexpected behavior or system crashes. It is crucial to update the Kernel to version v5.12.10 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

The impact of this vulnerability is not yet proven, but it could potentially result in unexpected behavior or system crashes.

You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time alerts for open-source vulnerabilities.

No known exploit has been reported for this vulnerability at this time.

This vulnerability was introduced in version v5.12 of the Kernel. Older versions may not be affected.

You can find more information about this vulnerability in the GSD-2021-1000804 entry of the GSD database at https://github.com/cloudsecurityalliance/gsd-database.

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How To Fix

No fixed version is published for this vulnerability.

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