Vulnerability in Kernel: iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot
Summary
GSD-2022-1000730: iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot. Affects Kernel versions >= 290a6ce11d938be52634b3ce1bbc6b78be4d23c1, < 9445c508883270e1093494e6654dd5ccaf507d97. 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 functionalities and acts as an interface between hardware and software. It includes various subsystems, one of which is the iio (Industrial I/O) subsystem responsible for handling sensor devices. The st_lsm6dsx driver within the iio subsystem is used for managing STMicroelectronics LSM6DSx IMU (Inertial Measurement Unit) sensors. These sensors are commonly found in devices such as smartphones, wearables, and IoT devices, and provide information about motion, orientation, and environmental conditions.
Vulnerability Detail
The vulnerability identified in the st_lsm6dsx driver is related to the lack of waiting for settling time in the st_lsm6dsx_read_oneshot function. This function is responsible for reading sensor data in a single-shot mode. Without waiting for the settling time, the sensor readings may not be accurate or stable, leading to potential issues in applications relying on this data. An attacker could potentially exploit this vulnerability to manipulate or tamper with the sensor readings, which could have various consequences depending on the specific use case. The vulnerability was introduced in Kernel version v4.11 and has been fixed in version v5.16.12.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement a delay or wait for the settling time manually before reading sensor data in their applications. This can be achieved by introducing a delay or using appropriate synchronization mechanisms to ensure that the sensor readings are stable before processing them. However, it is important to note that this workaround may introduce additional latency and may not provide a complete mitigation for the vulnerability.
Conclusion
The vulnerability in the st_lsm6dsx driver of the Kernel can lead to inaccurate and unstable sensor readings, potentially impacting applications relying on this data. It is crucial to update the Kernel to version v5.16.12 or later to mitigate this vulnerability. Developers can also implement a temporary workaround by introducing a delay for the settling time before reading sensor data. For further support and assistance in vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability can vary depending on the specific use case. Inaccurate or unstable sensor readings can lead to incorrect motion tracking, orientation estimation, or environmental monitoring. This can affect applications relying on these sensor data, such as augmented reality, virtual reality, fitness tracking, and industrial monitoring 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. You can also try the Vulert playground (https://vulert.com/scanner) without any signup to check if your application is affected.
At the time of this report, there are no known public exploits specifically targeting this vulnerability. However, it is always recommended to apply security patches and updates promptly to mitigate potential risks.
This vulnerability does not have a direct remote exploitation vector. An attacker would typically require local access to the affected device or system to exploit this vulnerability. However, it is important to consider the overall security posture of the system and implement appropriate security measures to prevent unauthorized access.
For more details about this vulnerability, including the specific code changes and references, you can refer to the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000730.json.
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