Critical Vulnerability in Linux Package: Auto-Enablement of Misc Vector
Summary
DEBIAN-CVE-2025-21651: In the Linux kernel, the following vulnerability has been resolved: net: hns3: don't auto enable misc vector Currently, there is a time window between misc irq enabled and service task inited. Affects linux versions < 6.12.10-1. Fixed in 6.12.10-1. How to fix ↓
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Background
The Linux package is a core component of the Debian operating system, providing essential functionalities for managing hardware and system resources. It serves as the foundation for various applications and services, ensuring efficient operation and performance. This package is crucial for system stability and security, making it imperative to address any vulnerabilities that may arise.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified related to the handling of interrupts in the hns3 driver. Specifically, there is a time window between enabling the miscellaneous interrupt vector and initializing the service task. If an interrupt occurs during this window, it can lead to warnings and potential system instability. The vulnerability is rooted in the improper management of interrupt requests, which can result in unexpected behavior and system errors.
How To Fix
Minimum fixed version
6.12.10-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. However, users are advised to monitor their systems closely for any unusual behavior and to apply the patch as soon as it is available.
Conclusion
The identified vulnerability in the Linux package poses a significant risk to system stability due to improper interrupt handling. It is crucial for users to update to the patched version 6.12.10-1 or later to mitigate this risk. Monitoring tools like Vulert can assist in identifying vulnerabilities in your software without requiring extensive setup.
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FAQ
The vulnerability involves the improper handling of interrupts in the hns3 driver, which can lead to system warnings and instability.
You can use Vulert, which monitors open-source vulnerabilities in your software. By uploading your manifest file like package-lock.json, you can check for vulnerabilities without needing to install any software.
While there are no specific workarounds, it is advisable to monitor your system for unusual behavior and apply the patch as soon as possible.
Yes, if exploited, this vulnerability could lead to system instability and unexpected behavior, potentially affecting system performance.
Detailed information can be found in the official Debian security advisories and on the Vulert website, which provides real-time monitoring for vulnerabilities.
References
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