Vulnerability in dmaengine: pl330
Summary
GSD-2022-1004204: dmaengine: pl330: Fix lockdep warning about non-static key. Affects Kernel versions >= e588710311ee5bece284871d613418831d56f2bd, < ffa25b652aac1b4a9010954e9e88661e658785cf. No fix is published. How to fix ↓
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Background
The dmaengine package is a component of the Linux Kernel that provides a framework for managing Direct Memory Access (DMA) operations. It allows devices to transfer data directly to and from memory without involving the CPU. The pl330 driver is a specific implementation of the dmaengine framework. It is responsible for managing DMA operations on platforms that utilize the ARM PrimeCell PL330 DMA controller.
Vulnerability Detail
The vulnerability in dmaengine: pl330 is related to a lockdep warning about a non-static key. This warning indicates a potential issue with the locking mechanism used in the pl330 driver. Lockdep is a debugging feature in the Linux Kernel that checks for potential deadlocks and other locking-related issues. The non-static key in question may lead to incorrect locking behavior, which can result in race conditions and other concurrency-related problems. While the impact and attack plausibility of this vulnerability have not been proven, it is important to address it to ensure the stability and security 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.
Conclusion
The vulnerability in dmaengine: pl330 related to a non-static key lockdep warning has been fixed in Linux Kernel version v5.18.11. It is recommended to update the Linux Kernel to this version or later to ensure the stability and security of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
dmaengine is a component of the Linux Kernel that provides a framework for managing Direct Memory Access (DMA) operations. It allows devices to transfer data directly to and from memory without involving the CPU.
The pl330 driver is a specific implementation of the dmaengine framework. It is responsible for managing DMA operations on platforms that utilize the ARM PrimeCell PL330 DMA controller.
Lockdep is a debugging feature in the Linux Kernel that checks for potential deadlocks and other locking-related issues.
A non-static key refers to a key used in the locking mechanism that is not marked as static. This can lead to incorrect locking behavior and potential concurrency issues.
The impact of this vulnerability is not yet proven. However, if left unaddressed, it could potentially result in race conditions and other concurrency-related problems.
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