Restrict usage of GPIO chip irq members before initialization in Linux Kernel
Summary
GSD-2022-1001669: gpio: Restrict usage of GPIO chip irq members before initialization. Affects Kernel versions < 0912cf021fb5749372b3782611d8b1de4986c13a. 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 services and functions to enable the proper functioning of hardware, software, and user applications. GPIO (General Purpose Input/Output) is a feature of the Linux Kernel that allows users to control and manipulate the input and output pins of a device. These pins can be used for various purposes, such as reading sensor data or controlling external devices. However, a vulnerability has been discovered in the GPIO subsystem that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the GPIO subsystem of the Linux Kernel allows for the usage of GPIO chip irq members before they have been properly initialized. This can result in unpredictable behavior and potential security risks. An attacker could exploit this vulnerability to gain unauthorized access, execute arbitrary code, or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to ensure the security and stability of the system.
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. It is advised to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
The vulnerability in the GPIO subsystem of the Linux Kernel can pose potential security risks and should be addressed by updating the Kernel to version v5.15.34 or later. This will ensure that the GPIO chip irq members are properly restricted before initialization, mitigating the 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. It provides essential services and functions to enable the proper functioning of hardware, software, and user applications.
GPIO (General Purpose Input/Output) is a feature of the Linux Kernel that allows users to control and manipulate the input and output pins of a device. These pins can be used for various purposes, such as reading sensor data or controlling external devices.
The impact of this vulnerability is not yet proven, but it could potentially lead to unauthorized access, arbitrary code execution, or denial-of-service attacks.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.34 or later. This fix is implemented in commit 0912cf021fb5749372b3782611d8b1de4986c13a.
There is no specific workaround mentioned for this vulnerability. It is advised to apply the fix by updating the Linux Kernel to the recommended version.
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