CVE-2026-93084

A flaw was found in the Linux kernel's arm_scmi firmware. When the SCMI bus notifier acquires a handle, but the device link cannot be properly established or a protocol driver probe fails, the SCMI instance's reference count may not be correctly released. This can lead to a resource leak. Furthermore, a concurrent parent unbind operation could tear down the SCMI instance while a child still holds a handle, potentially causing system instability or a denial of service.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.