Kernel: Fix Kernel Panic During Unload/Load ath11k Modules
Summary
GSD-2022-1001075: ath11k: fix kernel panic during unload/load ath11k modules. Affects Kernel versions < 38e488db194dc16d2eb23c77c6a8c04ff583c40d. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functions and services to enable the proper functioning of the system. The ath11k module is a wireless driver for Qualcomm Atheros 802.11ax chipsets. It allows devices to connect to Wi-Fi networks and communicate wirelessly. However, a vulnerability has been discovered in the ath11k module that can lead to a kernel panic during the unload/load process. A kernel panic is a critical error that causes the operating system to halt, resulting in system instability and potential data loss.
Vulnerability Detail
The vulnerability in the ath11k module occurs during the unload/load process. When unloading or loading the ath11k module, a kernel panic can be triggered, leading to a system crash. This vulnerability can be exploited by an attacker with local access to the system to cause a denial-of-service (DoS) condition. The impact of this vulnerability includes system instability, potential data loss, and disruption of network connectivity. The vulnerability has been fixed in Linux Kernel version v5.17.3 by commit 38e488db194dc16d2eb23c77c6a8c04ff583c40d.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is necessary to apply the fix by updating the Linux Kernel.
Conclusion
The vulnerability in the ath11k module of the Kernel can lead to a kernel panic during the unload/load process, resulting in system instability and potential data loss. It is crucial to update the Linux Kernel to version v5.17.3 or later to fix this vulnerability. Users can compile the latest kernel source code or wait for their Linux distribution to release an updated kernel package. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel panic, causing system instability, potential data loss, and disruption of network connectivity.
An attacker with local access to the system can exploit this vulnerability.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and it will provide real-time monitoring and alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in Linux Kernel version v5.17.3 by commit 38e488db194dc16d2eb23c77c6a8c04ff583c40d.
No, there is no known workaround for this vulnerability. It is necessary to update the Linux Kernel to fix the issue.
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