Kernel - USB DWC3 Core Kernel Panic Vulnerability
Summary
GSD-2021-1001092: usb: dwc3: core: fix kernel panic when do reboot. Affects Kernel versions >= afd8b0d091d5b4febe2d0ac3b7735c1826329302, < fa8c413e6b74ae5d12daf911c73238c5bdacd8e6. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and acts as an interface between the hardware and software layers. It manages system resources, facilitates communication between different software components, and ensures the overall stability and security of the system. The USB DWC3 Core is a subsystem within the Kernel that handles USB functionality, including device enumeration, data transfer, and power management. This vulnerability specifically affects the USB DWC3 Core and can lead to a kernel panic when rebooting the system.
Vulnerability Detail
The vulnerability in the USB DWC3 Core arises from a flaw in the code that causes a kernel panic during the reboot process. A kernel panic is a critical error that occurs when the operating system detects an unrecoverable error or inconsistency. In this case, the issue is triggered when attempting to reboot the system, resulting in a crash and potential disruption of services. While the exact impact and attack vectors have not been proven, a kernel panic can potentially lead to denial of service, data corruption, or privilege escalation if combined with other vulnerabilities. The vulnerability was introduced in Linux Kernel version v5.12.13 and has been fixed in version v5.12.13 by commit fa8c413e6b74ae5d12daf911c73238c5bdacd8e6.
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 USB DWC3 Core Kernel Panic vulnerability in the Linux Kernel version v5.12.13 can lead to a kernel panic during the reboot process. It is crucial to update to the fixed version or apply other mitigations to ensure system stability and security. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel panic during the reboot process, potentially causing a disruption of services and system instability.
No, only Linux Kernel version v5.12.13 is affected. The vulnerability has been fixed in later versions.
The exact attack vectors have not been proven, but remote exploitation is unlikely as it requires privileged access to the system.
There is no known exploit for this vulnerability at the time of this report.
If updating to the latest Kernel version is not feasible, it is recommended to monitor for any signs of exploitation and apply other security measures, such as network segmentation and access controls, to mitigate the risk.
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