The wm5102_clear_write_sequencer() helper may return an error and exit early, skipping the cleanup sequence that normally disables hardware regulators. As a result, those regulators remain enabled, creating a resource leak. The flaw is a functional defect that does not provide a direct code execution path or privilege escalation.

Any Linux kernel build that includes the mfd: Arizona driver for the WM5102 chip is affected. This includes systems where the kernel is compiled with this driver and where WM5102 hardware is present. No specific kernel version range is supplied, so the issue may exist in any build until the patch is applied.

The vulnerability has a very low likelihood of exploitation, reflected by an EPSS score of <1% and no listing in the CISA KEV catalog. Exploitation would likely require local access to trigger the error path of wm5102_clear_write_sequencer() on a system with WM5102 hardware, and it does not provide a remote attack vector or direct escalation. The impact is limited to a resource leak that could affect power management but does not compromise confidentiality, integrity, or availability.