Vulnerability in Kernel: regulator: rt4801
Summary
UVI-2021-1001075: regulator: rt4801: Fix NULL pointer dereference if priv->enable_gpios is NULL. Affects Kernel versions < dc68f0c9e4a001e02376fe87f4bdcacadb27e8a1. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functions, including device drivers, memory management, and process scheduling. The regulator subsystem within the Kernel is responsible for controlling voltage and current levels for various hardware components. One of the regulators, rt4801, is susceptible to a NULL pointer dereference issue when priv->enable_gpios is NULL.
Vulnerability Detail
The vulnerability in regulator: rt4801 arises when the priv->enable_gpios pointer is NULL. This can lead to a NULL pointer dereference, causing the system to crash or become unresponsive. An attacker may exploit this vulnerability to execute arbitrary code or trigger a denial-of-service condition. 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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Workaround
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by applying the recommended fix and updating their Kernel to the latest version.
Conclusion
The vulnerability in Kernel's regulator: rt4801 can lead to a NULL pointer dereference, potentially resulting in system crashes or allowing arbitrary code execution. It is crucial to update the Kernel to the fixed version to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software.
The regulator subsystem within the Kernel is responsible for controlling voltage and current levels for various hardware components.
A NULL pointer dereference occurs when a program attempts to access or manipulate memory using a pointer that points to NULL, resulting in a crash or undefined behavior.
The vulnerability could allow an attacker to execute arbitrary code or cause a denial-of-service condition, potentially leading to system crashes or unresponsiveness.
To mitigate the risk, it is recommended to update the Kernel to the latest version that includes the fix for this vulnerability.
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