net: dsa: fix panic on shutdown if multi-chip tree failed to probe
Summary
GSD-2022-1001190: net: dsa: fix panic on shutdown if multi-chip tree failed to probe. Affects Kernel versions >= 0650bf52b31ff35dc6430fc2e37969c36baba724, < b864d5350c18bea9369d0bdd9e7eb6f6172cc283. No fix is published. How to fix ↓
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Background
The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. The specific vulnerability occurs in the net subsystem, more specifically in the dsa (Distributed Switch Architecture) module. DSA enables the use of multiple Ethernet switches as a single logical switch. The vulnerability arises when a multi-chip tree fails to probe during system shutdown.
Vulnerability Detail
The vulnerability in the net: dsa module can lead to a panic on system shutdown if a multi-chip tree fails to probe. A panic is an unrecoverable error condition that causes the system to halt. This vulnerability can potentially disrupt the normal shutdown process and result in data loss or other adverse effects. The issue was introduced in Linux Kernel version v5.15 and has been fixed in version v5.17.2. The vulnerability is addressed by commit b864d5350c18bea9369d0bdd9e7eb6f6172cc283.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The net: dsa vulnerability in the Kernel package can lead to a panic on system shutdown if a multi-chip tree fails to probe. It is crucial to update the Linux Kernel to version v5.17.2 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a panic on system shutdown, potentially causing data loss or other adverse effects.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
The provided information does not indicate whether this vulnerability can be exploited remotely. However, it is always advisable to keep systems up to date with the latest security patches to mitigate potential risks.
There is no information available regarding known instances of this vulnerability being exploited at the time of this report. However, it is important to address the vulnerability promptly to minimize the risk of exploitation.
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