USB xHCI-Plat Remote Wake Enable Crash Vulnerability in Linux Kernel
Summary
GSD-2022-1000189: usb: xhci-plat: fix crash when suspend if remote wake enable. Affects Kernel versions < 20c51a4c52208f98e27308c456a1951778f41fa5. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for hardware abstraction, process management, memory management, and device drivers. The USB (Universal Serial Bus) subsystem in the Linux Kernel enables communication with USB devices. The xHCI-Plat driver is responsible for managing USB host controllers on platforms that use the eXtensible Host Controller Interface (xHCI). This vulnerability affects the xHCI-Plat driver when remote wake is enabled during suspend.
Vulnerability Detail
The vulnerability in the xHCI-Plat driver occurs when the system is suspended while remote wake is enabled. This can lead to a crash, potentially resulting in a denial-of-service (DoS) condition. The issue arises due to improper handling of suspend operations in the driver. An attacker with physical access to the system and the ability to trigger suspend operations could exploit this vulnerability to disrupt the normal functioning of the system. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
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 USB xHCI-Plat Remote Wake Enable Crash Vulnerability in the Linux Kernel can potentially lead to a denial-of-service (DoS) condition when the system is suspended with remote wake enabled. It is recommended to update the Linux Kernel to version v5.10.96 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially lead to a denial-of-service (DoS) condition, causing the system to crash and disrupt normal operations.
No, this vulnerability requires physical access to the system and the ability to trigger suspend operations.
The vulnerability is present in Linux Kernel versions prior to v5.10.96. Updating to version v5.10.96 or later resolves the issue.
There is no evidence of this vulnerability being actively exploited at the time of this report.
For more details about this vulnerability, refer to the source link provided in the database_specific section of this report.
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