CVE-2025-40296platform/x86: int3472: Fix double free of GPIO device during unregister
Updated under an hour ago ()
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1e5d088a52c207bcef6a43a6f6ffe162c514ed64 before b8113bb56c45bd17bac5144b55591f9cdbd6aabe; from 1e5d088a52c207bcef6a43a6f6ffe162c514ed64 before f0f7a3f542c1698edb69075f25a3f846207facba | CNA record |
References
- https://git.kernel.org/stable/c/b8113bb56c45bd17bac5144b55591f9cdbd6aabe
- https://git.kernel.org/stable/c/f0f7a3f542c1698edb69075f25a3f846207facba
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.