Impact
The fault in the i.MX8MP power domain controller allows the VC8000E/VPUMIX subsystem to hang during power‑up and power‑down cycles. The driver fails to clear the VC8000E clock before initiating a reset the first time, leading to a timing collision that stalls the VPU_NOC handshake. An affected system could become unresponsive or enter a deadlock state, effectively denying service to dependent components such as video processing or firmware update routines.
Affected Systems
This issue arises in the Linux kernel code that implements the imx power domain for i.MX8MP processors. It affects any build that utilizes the VC8000E block controller, typically embedded and industrial boards that rely on the NXP i.MX8MP reference platform. No specific kernel release number is listed in the data, so users should review their kernel source tree for the presence of the errata fix or the work‑around flag.
Risk and Exploitability
No CVSS or EPSS scores are provided, and the vulnerability is not included in the CISA KEV list, which suggests a lower current exploitation probability. The bug requires a local action that triggers a power‑cycle sequence on the VC8000E; it is not remotely exploitable over a network interface. Nevertheless, the resulting hang can interrupt mission‑critical services, and the lack of a documented severity score means administrators may consider it a potential denial‑of‑service risk. The patch mitigates the timing problem by clearing the VC8000E clock before powering up the module and gating the clock during the reset sequence.
OpenCVE Enrichment