Vulnerability in Kernel: sfc: farch: fix TX queue lookup in TX flush done handling
Summary
GSD-2021-1000065: sfc: farch: fix TX queue lookup in TX flush done handling. Affects Kernel versions >= 12804793b17c0e19115a90d98f2f3df0cb79e233, < 98d91180748986bfb6dfb3e72765f3225719a647. 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 system resources and facilitates communication between hardware and software. It provides essential functions for the proper functioning of the system. This vulnerability affects the Kernel and specifically the sfc (Solarflare) driver, which is responsible for handling network traffic. The vulnerability relates to a flaw in the TX queue lookup during TX flush done handling.
Vulnerability Detail
The vulnerability arises from an incorrect TX queue lookup in the TX flush done handling process within the sfc driver. An attacker could potentially exploit this flaw to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, the Kernel is vulnerable to a flaw in the sfc driver that could lead to a denial-of-service condition or arbitrary code execution. It is recommended to update the Kernel to version v5.12.3 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a denial-of-service (DoS) condition to the execution of arbitrary code with elevated privileges.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) to the playground, and it will alert you in real-time if the vulnerability is detected.
Yes, a patch for this vulnerability is available in Linux Kernel version v5.12.3. It is recommended to update to this version or a later one to fix the vulnerability.
The remote exploitability of this vulnerability has not been determined yet. Further analysis is required to assess the potential for remote exploitation.
There are no known instances of this vulnerability being exploited at the moment. However, it is crucial to apply the patch as soon as possible to mitigate the risk.
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