The mfd: Arizona helper function wm5102_clear_write_sequencer() can return an error and simply return, bypassing the required cleanup sequence. This leaves the regulator configuration enabled, resulting in a resource leak. The flaw does not provide an execution vector or privilege escalation, but the persistent state may lead to elevated power consumption or hardware instability.

All Linux kernel releases that include the mfd: Arizona wm5102 driver when compiled and loaded on hardware that uses the WM5102 chip are affected. The vendor is Linux; no explicit kernel version range is supplied, implying the issue persisted until the patch was merged.

No CVSS score is provided, the EPSS score is unavailable, and the vulnerability is not listed in CISA KEV. The flaw is confined to internal kernel code; an attacker would need the ability to trigger the error path on a device that employs this driver, typically requiring local or privileged access. No publicly known exploits exist.