CVE-2026-74415
Received Received - Intake

Use-After-Free in Linux Kernel SPI ATCSPI200 Driver

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: spi: atcspi200: fix use-after-free when driver unbind DMA resource is initialized after SPI controller registration. So when driver unbind, this can trigger a use-after-free when DMA is torn down while the controller is still alive and triggers DMA transfers.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-74415
EUVD
EUVD-2026-59562

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's spi-atcspi200 driver. It occurs because DMA resources are initialized after the SPI controller is registered. When the driver unbinds, the DMA is torn down while the controller remains active, potentially triggering a use-after-free when the controller attempts DMA transfers.

Impact Analysis

This vulnerability could lead to system instability, crashes, or potential privilege escalation if exploited. It may cause unexpected behavior in systems using the affected spi-atcspi200 driver, particularly during driver unloading or system shutdown.

Mitigation Strategies

Update the Linux kernel to a patched version that resolves the spi: atcspi200 use-after-free issue. Avoid unbinding the atcspi200 driver while the system is running to prevent potential use-after-free conditions.

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