Vulnerability in Kernel: net: dsa: mv88e6xxx: don't use devres for mdiobus
Summary
GSD-2022-1000368: net: dsa: mv88e6xxx: don't use devres for mdiobus. Affects Kernel versions >= ac3a68d56651c3dad2c12c7afce065fe15267f44, < 8ccebe77df6e0d88c72ba5e69cf1835927e53b6c. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. It provides essential functionality for the proper functioning of the system. The specific vulnerability affects the network subsystem of the Kernel, more specifically the mv88e6xxx driver used for managing Ethernet switches. The vulnerability arises from the improper use of devres for mdiobus, which can lead to potential security risks.
Vulnerability Detail
The vulnerability in the Kernel's mv88e6xxx driver arises from the incorrect usage of devres for mdiobus. This vulnerability can potentially be exploited by attackers to gain unauthorized access or execute arbitrary code on affected systems. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.10.101 by commit 8ccebe77df6e0d88c72ba5e69cf1835927e53b6c. The vulnerability was introduced in version v5.9 by commit ac3a68d56651c3dad2c12c7afce065fe15267f44.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the Kernel's mv88e6xxx driver can potentially lead to unauthorized access or arbitrary code execution. It is crucial to update the Linux Kernel to version v5.10.101 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it has the potential to allow unauthorized access or arbitrary code execution on affected systems.
You can use tools like Vulert (https://vulert.com) 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 the software.
Yes, the vulnerability has been fixed in Linux Kernel version v5.10.101 by commit 8ccebe77df6e0d88c72ba5e69cf1835927e53b6c. It is recommended to update to this version or later to mitigate the vulnerability.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Kernel to the fixed version.
You can refer to the vulnerability details in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000368.json
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