CVE-2026-46301: spi: topcliff-pch: fix use-after-free on unbind

Published Jun 8, 2026
·
Updated

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

Affected Software

9 affected componentsFixes available
Linux Linux kernel (spi: topcliff-pch)
Microsoft azl3 kernel 6.6.139.1-1<6.6.141.1-1
6.6.141.1-1
Linux Linux kernel>=3.1<5.10.258
Linux Linux kernel>=5.11<5.15.209
Linux Linux kernel>=5.16<6.1.175
Linux Linux kernel>=6.2<6.6.140
Linux Linux kernel>=6.7<6.12.88
Linux Linux kernel>=6.13<6.18.30
Linux Linux kernel>=6.19<7.0.7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.6.141.1-1
  2. Upgrade

    Upgrade Linux kernel (spi: topcliff-pch) to a version that resolves this vulnerability.

    Patch spi: topcliff-pch: fix use-after-free on unbind

Event History

Jun 8, 2026
CVE Published
via MITRE·03:46 PM
Data Sourced
via MITRE·03:46 PM
Description
Data Sourced
via NVD·05:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jun 10, 2026
Data Sourced
via Microsoft·08:04 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-46301?

The severity of CVE-2026-46301 is risk 29.

2

How do I fix CVE-2026-46301?

To fix CVE-2026-46301, ensure that you update to the latest version of the Linux kernel that addresses this vulnerability.

3

What type of vulnerability is CVE-2026-46301?

CVE-2026-46301 is categorized as a Use After Free vulnerability.

4

What component is affected by CVE-2026-46301?

CVE-2026-46301 affects the spi: topcliff-pch driver in the Linux kernel.

5

When was CVE-2026-46301 published?

CVE-2026-46301 was published on June 8, 2026.

Contact

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