CVE-2025-68238
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-16

Last updated on: 2025-12-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: cadence: fix DMA device NULL pointer dereference The DMA device pointer `dma_dev` was being dereferenced before ensuring that `cdns_ctrl->dmac` is properly initialized. Move the assignment of `dma_dev` after successfully acquiring the DMA channel to ensure the pointer is valid before use.
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Meta Information
Published
2025-12-16
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68238
EUVD
EUVD-2025-203658
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel's mtd: rawnand: cadence driver involves a NULL pointer dereference of the DMA device pointer `dma_dev`. The pointer was being used before ensuring that the DMA controller (`cdns_ctrl->dmac`) was properly initialized. The fix involved moving the assignment of `dma_dev` to after successfully acquiring the DMA channel, ensuring the pointer is valid before use.

Impact Analysis

The impact of this vulnerability could be a system crash or denial of service due to the NULL pointer dereference when the DMA device pointer is accessed improperly. This could affect system stability or availability when using the affected Linux kernel component.

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