CVE-2026-23283: regulator: fp9931: Fix PM runtime reference leak in fp9931_hwmon_read()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-25 · updated 2026-06-17

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.

Affected products

Linux kernel: from 6.19 before 6.19.7; 7.0-rc1 — fixed in 6.19.7

How to fix

Upgrade to a fixed version: Linux kernel 6.19.7. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/0902010c8d163f7b62e655efda1a843529152c7c
https://git.kernel.org/stable/c/ada571018d54c2381bab7c290577114f9667cda7

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