During the initialization of the mailbox driver for i.MX processors, the function devm_pm_runtime_enable() was called before the probe had finished. This early power‑management enablement allowed the device to be accessed prior to full initialization, potentially leading to incorrect power state handling, kernel instability, or a denial of service if the driver attempted to use an unprepared hardware controller.

All Linux kernel builds that include the mailbox driver for i.MX processors are affected, as the issue is in the kernel source itself. The exact version range is not specified in the data provided, so any kernel version that contains the unpatched mailbox implementation is potentially impacted.

No CVSS score or EPSS data is available, and the vulnerability is not listed in the CISA KEV catalog, meaning no publicly known exploits currently exist. The attack vector would require an attacker to trigger the probe sequence while the device is not yet fully initialized, which could be achieved by sending malformed mailbox commands or manipulating the driver’s initialization path. While the impact could be local kernel instability or denial of service, there is currently no evidence of exploitation in the wild.