Kernel - ath11k: Fix Kernel Panic During Unload/Load ath11k Modules
Summary
GSD-2022-1002015: ath11k: fix kernel panic during unload/load ath11k modules. Affects Kernel versions < c6a815f5abdf324108799829dd19ea62fef4bf95. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and acts as an interface between hardware and software. It manages system resources, facilitates communication between different components, and supports various device drivers. The ath11k module is a wireless driver for Qualcomm Atheros 802.11ax devices. It allows these devices to connect to wireless networks and communicate wirelessly. However, a vulnerability in the ath11k module can lead to a kernel panic during the unload/load process, potentially causing system instability and disruption of network connectivity.
Vulnerability Detail
The vulnerability in the ath11k module can trigger a kernel panic when unloading or loading the module. A kernel panic is a critical error that occurs when the kernel encounters an unrecoverable issue, forcing the system to halt. This vulnerability can be exploited by an attacker with local access to the system to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with elevated privileges. The vulnerability has been fixed in Linux Kernel version v5.10.111 by commit c6a815f5abdf324108799829dd19ea62fef4bf95.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring that only trusted individuals have local access to the system and by keeping the system up-to-date with the latest security patches.
Conclusion
The vulnerability in the ath11k module can lead to a kernel panic during the unload/load process, potentially causing system instability and disruption of network connectivity. It is crucial to update the Linux Kernel to version v5.10.111 or later to fix this vulnerability. Users can check for updates through their Linux distribution's package manager or download the latest stable version from the official repository. 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 and potential disruption of network connectivity. It can also be exploited by an attacker with local access to the system to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with elevated privileges.
You can use Vulert's playground (https://vulert.com/scanner) 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.
Yes, the vulnerability has been fixed in Linux Kernel version v5.10.111 by commit c6a815f5abdf324108799829dd19ea62fef4bf95. It is recommended to update the Linux Kernel to this version or later to mitigate the risk.
No, this vulnerability requires local access to the system to be exploited. However, it is still important to apply the necessary updates to prevent potential exploitation.
There are no known instances of this vulnerability being exploited in the wild. However, it is always recommended to apply security updates promptly to mitigate potential risks.
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