Deadlock Vulnerability in drivers: staging: rtl8192e
Summary
GSD-2022-1003477: drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop(). Affects Kernel versions < 0f69d7d5e918aa43423d86bd17ddb11b1b5e8ada. No fix is published. How to fix ↓
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Background
The drivers: staging: rtl8192e package is a component of the Linux Kernel, which is responsible for managing the Realtek RTL8192E wireless chipset. This package provides the necessary drivers and functionality for the proper functioning of the RTL8192E chipset. The package is widely used in various Linux distributions and is crucial for enabling wireless network connectivity on systems equipped with the RTL8192E chipset.
Vulnerability Detail
The vulnerability identified in the drivers: staging: rtl8192e package is a deadlock issue in the rtllib_beacons_stop() function. This function is responsible for stopping the transmission of beacon frames in the wireless network. The deadlock occurs when multiple threads attempt to access and modify the beacon-related data structures simultaneously, leading to a situation where the threads are unable to proceed, resulting in a system deadlock. This vulnerability can potentially be exploited by an attacker to cause a denial-of-service (DoS) condition on the affected system, rendering it unresponsive and disrupting network connectivity.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. However, users can mitigate the risk by ensuring that their systems are updated with the latest Linux Kernel version that includes the fix for this issue.
Conclusion
In conclusion, the drivers: staging: rtl8192e package in the Linux Kernel is vulnerable to a deadlock issue in the rtllib_beacons_stop() function. This vulnerability can be exploited to cause a denial-of-service condition on the affected system. To mitigate the risk, it is recommended to update the Linux Kernel to version v5.10.122 or later. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition on the affected system, resulting in system unresponsiveness and disruption of network connectivity.
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 software.
Yes, a patch for this vulnerability is available in the Linux Kernel version v5.10.122. It is recommended to update to this version or later to fix the issue.
There are no known exploits for this vulnerability at the moment. However, it is important to apply the necessary updates to mitigate the risk.
You can find more information about this vulnerability in the GSD-2022-1003477 entry of the Cloud Security Alliance's GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003477.json).
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