i40e: Fix freeing of uninitialized misc IRQ vector in Kernel
Summary
GSD-2021-1001579: i40e: Fix freeing of uninitialized misc IRQ vector. Affects Kernel versions >= c17401a1dd210a5f22ab1ec7c7366037c158a14c, < 17063cac4088b8e2fc0f633abddca5426ed58312. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that provides core functionalities and acts as an interface between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the overall stability and security of the system. The i40e driver is responsible for managing Intel Ethernet Connection X710/XL710 devices. These devices are commonly used in data centers and provide high-performance networking capabilities. However, a vulnerability has been identified in the i40e driver that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the i40e driver involves the freeing of an uninitialized miscellaneous (misc) IRQ vector. This issue was introduced in version v4.15 of the Linux Kernel and was fixed in version v5.4.153. When the driver attempts to free an uninitialized misc IRQ vector, it can lead to unpredictable behavior and potential security vulnerabilities. The impact and attack plausibility of this vulnerability have not been proven yet, but it is essential to address it to ensure the stability and security of the system.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The vulnerability in the i40e driver that involves the freeing of uninitialized misc IRQ vectors can potentially introduce security vulnerabilities and unpredictable behavior. It is crucial to update the Linux Kernel to version v5.4.153 or later to address this issue. Regularly updating the Kernel is essential to ensure the system's stability and security. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it has the potential to introduce security vulnerabilities and unpredictable behavior in systems utilizing the i40e driver.
This vulnerability was introduced in version v4.15 of the Linux Kernel through a specific commit (c17401a1dd210a5f22ab1ec7c7366037c158a14c) that resulted in the freeing of uninitialized misc IRQ vectors.
You can use tools like Vulert (https://vulert.com) 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.
At the moment, there are no known workarounds for this vulnerability. It is recommended to update the Linux Kernel to the fixed version (v5.4.153 or later) to address the issue.
You can refer to the vulnerability details in the Open Source Vulnerability format provided by the Cloud Security Alliance's GSD database. The details include the commit IDs, affected versions, and relevant references.
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