USB: dwc3: ep0: Fix NULL pointer exception in Linux Kernel
Summary
GSD-2021-1001033: usb: dwc3: ep0: fix NULL pointer exception. Affects Kernel versions < 788755756dd4a6aba1de479fec20b0fa600e7f19. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system. It provides essential functionality and acts as an interface between the hardware and software layers. The dwc3 driver in the Linux Kernel is responsible for managing USB 3.0 controllers. The ep0 endpoint is the control endpoint used for device initialization and configuration. However, a vulnerability in the dwc3 driver can lead to a NULL pointer exception in the ep0 endpoint, potentially causing a system crash or other unexpected behavior.
Vulnerability Detail
The vulnerability in the dwc3 driver arises from a NULL pointer exception. When certain conditions are met, the driver fails to handle a NULL pointer properly, leading to a crash or other issues. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) attack or execute arbitrary code with kernel privileges. 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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Conclusion
The vulnerability in the dwc3 driver of the Linux Kernel can lead to a NULL pointer exception, potentially causing system crashes or other unexpected behavior. It is recommended to update the Linux Kernel to version v5.12.11 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential functionality.
The dwc3 driver is a USB 3.0 controller driver in the Linux Kernel, responsible for managing USB 3.0 controllers.
The ep0 endpoint is the control endpoint used for device initialization and configuration in USB devices.
A NULL pointer exception occurs when a program tries to access or dereference a memory location that has a NULL pointer value, resulting in a crash or unexpected behavior.
The impact of this vulnerability could include system crashes, denial-of-service (DoS) attacks, or arbitrary code execution with kernel privileges.
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