CVE-2026-46301
Received Received - Intake

spi: topcliff-pch use-after-free on driver unbind

Publication date: 2026-06-08

Last updated on: 2026-06-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: spi: topcliff-pch: fix use-after-free on unbind Give the driver a chance to flush its queue before releasing the DMA buffers on driver unbind

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Meta Information

Published
2026-06-08
Last Modified
2026-06-08
Generated
2026-06-29
AI Q&A
2026-06-08
EPSS Evaluated
2026-06-27
NVD
CVE-2026-46301
EUVD
EUVD-2026-35166

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel topcliff_pch *

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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 topcliff-pch SPI driver. It occurs when the driver unbinds and releases DMA buffers without properly flushing its queue first, which can lead to accessing memory that has already been freed.

Impact Analysis

The use-after-free vulnerability can cause system instability or crashes due to invalid memory access. It may also potentially be exploited to execute arbitrary code or cause denial of service, depending on the context in which the driver operates.

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