Vulnerability in Kernel: mtd: rawnand: denali: Use managed device resources
Summary
GSD-2022-1003149: mtd: rawnand: denali: Use managed device resources. Affects Kernel versions >= 93db446a424cee9387b532995e6b516667079555, < 87149cf9186201a63f0e0b93d9fa93d480bcb771. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionalities and acts as an interface between hardware and software. It manages system resources, including memory, processes, and device drivers. The mtd (Memory Technology Devices) subsystem within the Kernel handles flash memory devices, such as NAND flash chips. The denali driver is responsible for managing NAND flash controllers. This vulnerability specifically affects the denali driver's handling of device resources.
Vulnerability Detail
The vulnerability in the denali driver arises from the improper use of device resources. By not utilizing managed device resources, the driver may encounter issues related to resource allocation, deallocation, and synchronization. Exploiting this vulnerability could lead to various consequences, such as memory corruption, system crashes, or privilege escalation. The vulnerability was introduced in version v4.17 of the Linux Kernel and has been fixed in version v5.17.14.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can disable the denali driver by removing it from the Kernel configuration or blacklisting the module. However, this workaround may result in the loss of functionality related to NAND flash controllers. It is strongly advised to apply the recommended fix by updating the Kernel as soon as possible.
Conclusion
The vulnerability in the denali driver of the Kernel can lead to memory corruption, system crashes, or privilege escalation. It is crucial to update the Linux Kernel to version v5.17.14 or later to mitigate this vulnerability. Disabling the denali driver is a temporary workaround but may result in the loss of NAND flash controller functionality. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Exploiting this vulnerability could lead to memory corruption, system crashes, or privilege escalation.
The vulnerability was introduced in version v4.17 and affects all subsequent versions until v5.17.13.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time alerts for open-source vulnerabilities.
At the time of this report, no known exploits for this vulnerability have been reported.
As a temporary workaround, you can disable the denali driver by removing it from the Kernel configuration or blacklisting the module. However, this may result in the loss of functionality related to NAND flash controllers.
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