Vulnerability in Kernel: iio: adc: stm32
Summary
GSD-2021-1002608: iio: adc: stm32: fix a current leak by resetting pcsel before disabling vdda. Affects Kernel versions >= 95e339b6e85d03438d1d9236ccaff4ecd895f3ab, < 41d241ad3e5558ddde568be78d0db7b4b644a72e. 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. The iio: adc: stm32 module within the Kernel provides support for the Analog-to-Digital Converter (ADC) on STM32 microcontrollers. This module allows applications to read analog signals and convert them into digital values. However, a vulnerability has been identified in this module that can lead to a current leak when disabling the VDDA (analog supply voltage). This current leak can potentially impact the overall system performance and stability.
Vulnerability Detail
The vulnerability arises from a failure to reset the PCSel (channel selection) before disabling the VDDA. This can result in a current leak, leading to increased power consumption and potential instability in the system. The issue was introduced in version v4.13 of the Linux Kernel and has been fixed in version v5.15.8. The impact and attack plausibility of this vulnerability have not been proven yet.
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 vulnerability in the iio: adc: stm32 module of the Kernel can lead to a current leak and potential instability in the system. It is recommended to update the Linux Kernel to version v5.15.8 or later to fix this vulnerability. If you have any further questions or need assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can result in a current leak, leading to increased power consumption and potential instability in the system.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will provide real-time alerts for open-source vulnerabilities.
The actual impact and attack plausibility of this vulnerability have not been proven yet. However, it is always recommended to apply the necessary updates and patches to mitigate any potential risks.
This vulnerability affects systems running the Linux Kernel version v4.13 to v5.15.7. It specifically impacts the iio: adc: stm32 module used for ADC functionality on STM32 microcontrollers.
For further support on vulnerability remediation, you can reach out to info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
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