CVE-2026-23283
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PM Runtime Reference Leak in Linux Kernel fp9931 Regulator

Publication date: 2026-03-25

Last updated on: 2026-05-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: regulator: fp9931: Fix PM runtime reference leak in fp9931_hwmon_read() In fp9931_hwmon_read(), if regmap_read() failed, the function returned the error code without calling pm_runtime_put_autosuspend(), causing a PM reference leak.
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Meta Information
Published
2026-03-25
Last Modified
2026-05-22
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-14
NVD
CVE-2026-23283
EUVD
EUVD-2026-15206
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.19 (inc) to 6.19.7 (exc)
linux linux_kernel 7.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the Linux kernel within the regulator component fp9931, specifically in the function fp9931_hwmon_read(). If the regmap_read() call fails, the function returns an error code without calling pm_runtime_put_autosuspend(), which leads to a power management (PM) runtime reference leak.

Impact Analysis

The impact of this vulnerability is a leak of PM runtime references, which can cause improper power management behavior. Over time, this may lead to increased power consumption or resource exhaustion related to power management, potentially affecting system stability or battery life.

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