Vulnerability in dmaengine: zynqmp_dma
Summary
GSD-2022-1002915: dmaengine: zynqmp_dma: In struct zynqmp_dma_chan fix desc_size data type. Affects Kernel versions < 4838969e4d95d2bd2995d1605b20d3144fcb3e74. 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 zynqmp_dma module is a specific implementation of the dmaengine framework for the Xilinx ZynqMP platform. It provides DMA functionality for devices on this platform.
Vulnerability Detail
The vulnerability in the zynqmp_dma module is related to an incorrect data type used in the struct zynqmp_dma_chan for the desc_size field. This issue can potentially lead to memory corruption or other unexpected behavior when performing DMA operations. 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 zynqmp_dma module of the dmaengine package has been addressed in Linux Kernel version v5.17.15. Users are advised to update their Linux Kernel to this version or a later one to mitigate the risk. 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.
zynqmp_dma is a specific implementation of the dmaengine framework for the Xilinx ZynqMP platform. It provides DMA functionality for devices on this platform.
The impact of this vulnerability is not yet proven. However, it could potentially lead to memory corruption or other unexpected behavior when performing DMA operations.
To fix this vulnerability, users should update their Linux Kernel to version v5.17.15 or a later one, which includes the necessary fix.
No specific workaround has been provided for this vulnerability. Updating the Linux Kernel to the fixed version is the recommended solution.
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