Kernel Vulnerability: sfc - Kernel Panic when Creating VF
Summary
GSD-2022-1004171: sfc: fix kernel panic when creating VF. Affects Kernel versions >= d778819609a27efd5358da8151a0ad3507243e19, < 16662524ec5da801fb78a1afcaf6e782f1cf103a. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware and software components. The sfc module within the Kernel is responsible for handling network interface cards (NICs) that utilize the Solarflare controller. These NICs are commonly used in high-performance computing and data center environments. However, a vulnerability has been discovered in the sfc module that can lead to a kernel panic when creating a Virtual Function (VF) on affected systems.
Vulnerability Detail
The vulnerability in the sfc module occurs when attempting to create a VF. A VF is a virtual representation of a physical NIC, allowing for the partitioning and allocation of network resources. The specific cause of the vulnerability has not been disclosed, but it results in a kernel panic, causing the system to crash. This vulnerability can be exploited by an attacker with local access to the system, potentially leading to a denial of service (DoS) situation. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
The sfc module in the Kernel is vulnerable to a kernel panic when creating a VF. This vulnerability can be mitigated by updating the Linux Kernel to version v5.18.13 or later. It is important to stay updated with the latest security patches to ensure the stability and security of the system. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel panic, causing the system to crash. This can result in a denial of service (DoS) situation.
An attacker with local access to the system can potentially exploit this vulnerability.
There are no known instances of this vulnerability being exploited at this time.
Yes, updating the Linux Kernel to version v5.18.13 or later will address this vulnerability.
The updated Linux Kernel can be obtained from the official Linux Kernel repository.
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