Memory Leak Vulnerability in rtl8712 Driver
Summary
GSD-2022-1003482: staging: rtl8712: fix a potential memory leak in r871xu_drv_init(). Affects Kernel versions < 5a89a92efc342dd7c44b6056da87debc598f9c73. No fix is published. How to fix ↓
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Background
The rtl8712 driver is part of the Linux Kernel, which is responsible for managing the communication between the operating system and Realtek RTL8712 wireless network adapters. This driver enables the functionality of these network adapters, allowing users to connect to wireless networks and access the internet. However, a vulnerability has been discovered in the driver that could lead to a memory leak.
Vulnerability Detail
The vulnerability exists in the r871xu_drv_init() function of the rtl8712 driver. This function is called during the initialization process of the driver and is responsible for allocating and initializing memory resources. However, due to a coding error, there is a potential memory leak in this function. If the memory allocation fails, the function does not properly free the previously allocated memory, leading to a memory leak. This vulnerability could be exploited by an attacker to exhaust system memory resources, potentially causing a denial-of-service condition or other unexpected behavior.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, the Linux Kernel developers have addressed the issue in version v5.10.122 by committing the fix with the SHA-1 hash 5a89a92efc342dd7c44b6056da87debc598f9c73. Users are advised to update their Linux Kernel to this version or a later one to mitigate the vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. Users are recommended to update their Linux Kernel to the fixed version as soon as possible.
Conclusion
In conclusion, a memory leak vulnerability has been discovered in the rtl8712 driver of the Linux Kernel. This vulnerability could potentially lead to system instability or resource exhaustion. Users are advised to update their Linux Kernel to version v5.10.122 or later to mitigate the vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability could potentially lead to a memory leak, which may result in system instability, resource exhaustion, or unexpected behavior.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze and alert you if the vulnerability is present.
At the time of this report, no known exploits for this vulnerability have been identified. However, it is always recommended to apply security patches and updates promptly to mitigate potential risks.
This vulnerability requires local access to the system to exploit. It cannot be exploited remotely over a network.
For more details about this vulnerability, you can refer to the source link provided in the database_specific section of this report.
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