Incorrect Control Flow Scoping in Linux kernel - CVE-2026-23283
Published: March 25, 2026
Vulnerability identifier: #VU124586
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-23283
CWE-ID: CWE-705
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper reference counting in the fp9931_hwmon_read() function when handling hardware monitoring requests. A local user can trigger a failed regmap_read() call to cause a power management (PM) runtime reference leak.
The issue specifically occurs in the regulator driver for the FP9931 chip, where failure to release a PM runtime reference after a hardware register read failure leads to a resource leak that can accumulate over time.
Affected software
Linux kernel
How to mitigate CVE-2026-23283
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3