Vulnerability in Kernel package: sfc: adjust efx->xdp_tx_queue_count
Summary
GSD-2021-1000064: sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues. Affects Kernel versions >= e26ca4b535820b1445dcef3c0f82b3fb5b45108b, < ebeac958b690123a0b40aa61f688f2f170035fad. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functionality. It provides an interface between the hardware and software layers, allowing applications to communicate with the underlying hardware. The sfc module within the Kernel package is specifically related to Solarflare network adapters. These adapters enable high-performance networking capabilities for servers. However, a vulnerability has been identified in the sfc module, specifically in the adjustment of efx->xdp_tx_queue_count, which can lead to potential security risks.
Vulnerability Detail
The vulnerability in the sfc module occurs when the efx->xdp_tx_queue_count is not adjusted correctly with the real number of initialized queues. This can result in various security issues, although the exact impact and attack plausibility have not been proven yet. The vulnerability was introduced in version v5.12 of the Linux Kernel by commit e26ca4b535820b1445dcef3c0f82b3fb5b45108b. However, it has been fixed in version v5.12.3 by commit ebeac958b690123a0b40aa61f688f2f170035fad.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, a vulnerability has been identified in the sfc module of the Kernel package, specifically related to the adjustment of efx->xdp_tx_queue_count. It is crucial to update the Linux Kernel package to version v5.12.3 or later to address this vulnerability. Failure to do so may expose the system to potential security risks. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The exact impact of this vulnerability is not yet proven. However, it has the potential to lead to security risks and compromise the integrity and confidentiality of the system.
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 provide real-time monitoring and alerts for open-source vulnerabilities, including this one.
As of now, there is no known exploit for this vulnerability. However, it is essential to apply the recommended fix to mitigate any potential risks.
No, manually adjusting efx->xdp_tx_queue_count is not recommended as it requires modifying the Kernel code. It is best to update to the fixed version of the Linux Kernel package.
You can find more information about this vulnerability in the Open Source Vulnerability Database. The vulnerability ID is GSD-2021-1000064, and the source can be accessed at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000064.json.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
