Riskcovery

CVE-2025-40296

platform/x86: int3472: Fix double free of GPIO device during unregister

State
Published
Severity
Not scored
Published
Dec 8, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: int3472: Fix double free of GPIO device during unregister

regulator_unregister() already frees the associated GPIO device. On ThinkPad X9 (Lunar Lake), this causes a double free issue that leads to random failures when other drivers (typically Intel THC) attempt to allocate interrupts. The root cause is that the reference count of the pinctrl_intel_platform module unexpectedly drops to zero when this driver defers its probe.

This behavior can also be reproduced by unloading the module directly.

Fix the issue by removing the redundant release of the GPIO device during regulator unregistration.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1e5d088a52c207bcef6a43a6f6ffe162c514ed64 to before b8113bb56c45bd17bac5144b55591f9cdbd6aabeAffected
  • 1e5d088a52c207bcef6a43a6f6ffe162c514ed64 to before f0f7a3f542c1698edb69075f25a3f846207facbaAffected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.17.8 through 6.17.*Not affected
  • 6.18 and laterNot affected

References

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