Invalid Error Returning in mhi_queue Vulnerability in Kernel
Summary
GSD-2021-1000085: bus: mhi: core: Fix invalid error returning in mhi_queue. Affects Kernel versions >= a8f75cb348fd52e7a5cf25991cdf9c89fb0cfd41, < a99b661c3187365f81026d89b1133a76cd2652b3. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functions for the proper functioning of the system. The mhi_queue is a subsystem within the Kernel that handles communication between the host and the MHI (Mobile Host Interface) devices. MHI devices are used in mobile platforms for various purposes, such as modem communication. This vulnerability affects the mhi_queue subsystem in the Kernel.
Vulnerability Detail
The vulnerability in the mhi_queue subsystem of the Kernel allows for an invalid error to be returned. This issue was introduced in version v5.12 of the Kernel by commit a8f75cb348fd52e7a5cf25991cdf9c89fb0cfd41 and was fixed in version v5.12.3 by commit a99b661c3187365f81026d89b1133a76cd2652b3. When this vulnerability is exploited, it can lead to various security risks, including potential denial-of-service attacks or information disclosure. The exact impact and attack plausibility have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The invalid error returning in mhi_queue vulnerability in the Kernel can pose security risks, including potential denial-of-service attacks or information disclosure. It is crucial to update the Kernel to version v5.12.3 or later to mitigate this vulnerability. For more information and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The mhi_queue subsystem is a component within the Kernel that handles communication between the host and MHI devices. It facilitates data transfer and control operations for MHI devices, which are commonly used in mobile platforms.
The impact of this vulnerability can vary depending on the specific exploitation scenario. It could potentially lead to denial-of-service attacks or information disclosure, but the exact impact and attack plausibility have not been proven yet.
You can check if your system is affected by this vulnerability by verifying the version of the Kernel installed. If your Kernel version is earlier than v5.12.3, it is recommended to update to the latest version.
At the moment, there are no known workarounds for this vulnerability. It is recommended to update the Kernel to the fixed version.
You can find more information about this vulnerability in the official Linux Kernel repository and the associated commit history. Additionally, you can reach out to info@devnack.com for further support on vulnerability remediation.
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