In the Linux kernel DRM driver for Renesas RZ/G2L boards, a reboot that triggers panels requiring MIPI‑DSI commands in their unprepare() routine can cause the kernel to panic. The panic occurs when the existing stop sequence is invoked prematurely, leading the driver to attempt a data transfer on a stopped interface. The crash results in an OS halt that requires a hard reset, effectively denying service to the affected machine.

Linux kernel builds that include the renesas DRM driver on Renesas RZ/G2L hardware, particularly when a connected panel performs MIPI‑DSI communication during its unprepare() callback. The issue exists in kernel versions that contain commit 56de5e305d4b and earlier; it has been fixed in later revisions of the driver. No specific kernel release notation is provided in the advisory.

The flaw manifests during system shutdown or reboot, which normally requires local privileged access; no evidence indicates remote exploitation is possible. EPSS of < 1% indicates a very low exploitation probability, and the vulnerability is not listed in CISA KEV. The risk is operational: a system crash that interrupts service and requires manual recovery. The CVSS score of 5.5 indicates moderate severity, but the exploitation likelihood remains low due to the very low EPSS and lack of remote access. The primary attack vector is a local privileged reboot trigger.