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.
Metrics
Affected Vendors & Products
References
History
Tue, 09 Dec 2025 00:15:00 +0000
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threat_severity
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cvssV3_1
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Mon, 08 Dec 2025 01:15:00 +0000
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| 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. | |
| Title | platform/x86: int3472: Fix double free of GPIO device during unregister | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-12-08T00:46:20.017Z
Updated: 2025-12-08T00:46:20.017Z
Reserved: 2025-04-16T07:20:57.185Z
Link: CVE-2025-40296
No data.
Status : Awaiting Analysis
Published: 2025-12-08T01:16:01.690
Modified: 2025-12-08T18:26:49.133
Link: CVE-2025-40296