Vulnerability in Kernel: usb: dwc3-meson-g12a
Summary
GSD-2021-1000953: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled. Affects Kernel versions >= 013af227f58a97ffc61b99301f8f4448dc7e7f55, < 750a0d75564293be3ed50f13ef7f38ab75106421. 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 hardware and software. It includes various drivers and modules to support different hardware devices. One such driver is dwc3-meson-g12a, which is responsible for managing USB functionality on Amlogic G12A SoCs. This driver controls the USB controller and its associated PHYs (Physical Layer) to enable USB communication. However, a vulnerability has been identified in the dwc3-meson-g12a driver that affects the initialization of the USB2 PHY glue when phy0 is disabled.
Vulnerability Detail
The vulnerability in the dwc3-meson-g12a driver occurs during the initialization of the USB2 PHY glue when phy0 is disabled. This issue can potentially lead to incorrect initialization of the USB2 PHY glue, causing USB functionality to malfunction or become unstable. An attacker could potentially exploit this vulnerability to disrupt USB communication or execute arbitrary code on a vulnerable system. The vulnerability was introduced in version v5.8 of the Linux Kernel and has been fixed in version v5.10.44.
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
In conclusion, the dwc3-meson-g12a driver in the Kernel is vulnerable to an issue that affects the initialization of the USB2 PHY glue when phy0 is disabled. This vulnerability can lead to USB functionality problems and potential code execution on a vulnerable system. It is crucial to update the Linux Kernel to version v5.10.44 or later to mitigate this vulnerability. If you require further assistance or information on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can result in USB functionality issues, such as unstable or non-functional USB communication. In some cases, an attacker may be able to exploit this vulnerability to execute arbitrary code on a vulnerable system.
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 specific issue.
At the time of this report, there is no known public exploit for this vulnerability. However, it is always recommended to apply security updates promptly to mitigate potential risks.
If you are unable to update the Kernel immediately, it is recommended to follow general security best practices, such as restricting physical access to the system, using network firewalls, and regularly monitoring for any suspicious activity.
For more information about this vulnerability, you can refer to the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the associated commit history. Additionally, you can reach out to info@devnack.com for further support on vulnerability remediation.
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