Vulnerability in Kernel package: i2c: i801: Don't generate an interrupt on bus reset
Summary
GSD-2021-1000592: i2c: i801: Don't generate an interrupt on bus reset. Affects Kernel versions >= 636752bcb5177a301d0266270661581de8624828, < b523feb7e8e44652f92f3babb953a976e7ccbbef. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system that provides the core functionality and interfaces between hardware and software. It includes various drivers and modules to support different hardware devices. One such driver is the i2c driver, which enables communication with I2C devices. The i801 driver is a specific implementation of the i2c driver for Intel platforms. It allows the system to communicate with I2C devices connected to the Intel SMBus controller. However, a vulnerability has been discovered in the i801 driver that can lead to potential security issues.
Vulnerability Detail
The vulnerability in the i2c i801 driver occurs when an interrupt is generated on a bus reset. This can be exploited by an attacker to disrupt the normal operation of the system or potentially gain unauthorized access. The vulnerability was introduced in version v3.6 of the Linux Kernel and has been fixed in version v5.10.42. 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
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the i2c i801 driver can pose security risks to Linux systems. It is crucial to update the Linux Kernel to the latest version to mitigate this vulnerability. For further support and assistance in vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The i2c i801 driver is a specific implementation of the i2c driver for Intel platforms. It allows the system to communicate with I2C devices connected to the Intel SMBus controller.
A bus reset is a process in which all devices on an I2C bus are reset to a known state. It is typically initiated by the master device to resolve any communication issues or conflicts.
The vulnerability can lead to disruption of the normal operation of the system and potentially unauthorized access by an attacker.
You can use tools like Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert Playground allows you to analyze your application's manifest file, such as package-lock.json, and provides real-time alerts for open-source vulnerabilities.
There is currently no known exploit for this vulnerability. However, it is still important to apply the recommended fix to ensure the security of your system.
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