Vulnerability in i2c: i801 package: Don't generate an interrupt on bus reset

Kernel Updated 02 Oct 2025

Summary

04/06/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1000627: i2c: i801: Don't generate an interrupt on bus reset. Affects Kernel versions >= 636752bcb5177a301d0266270661581de8624828, < 04cc05e3716ae31b17ecdab7bc55c8170def1b8b. No fix is published. How to fix ↓

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Background

The i2c: i801 package is a component of the Linux Kernel ecosystem. It provides support for the I2C bus on Intel platforms. The I2C bus is a widely used serial communication protocol that allows multiple devices to be connected and communicate with each other. The i2c: i801 package specifically handles the I2C bus controller found on Intel chipsets. It is responsible for managing the communication between the chipset and the connected I2C devices. However, a vulnerability has been discovered in this package that could potentially lead to security issues.

Vulnerability Detail

The vulnerability in the i2c: i801 package involves the generation of an interrupt on bus reset. When a bus reset occurs, the package should not generate an interrupt. However, due to a coding error, an interrupt is generated, which can lead to unintended consequences. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.4.124 by commit 04cc05e3716ae31b17ecdab7bc55c8170def1b8b. The vulnerability was introduced in version v3.6 by commit 636752bcb5177a301d0266270661581de8624828.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.4.124 or later. This can be done by following the official update process provided by the Linux Kernel development team. It is important to regularly update the Kernel to ensure that all security patches and fixes are applied.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

In conclusion, the i2c: i801 package in the Linux Kernel is vulnerable to a coding error that generates an interrupt on bus reset. This vulnerability has been fixed in the Linux Kernel version v5.4.124. It is recommended to update the Kernel to ensure the security of the system. For further support on vulnerability remediation, please contact DevNack.com.

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