CVE-2026-68281

A flaw was found in the Linux kernel's graphics driver for Imagination GPUs. This vulnerability occurs because the system incorrectly manages dependencies between certain graphics processing tasks. This mismanagement can lead to the system miscalculating available resources, causing tasks to fail or time out. The consequence is system instability, potentially resulting in a Denial of Service (DoS) where the system becomes unresponsive.

This issue affects systems with Imagination PowerVR GPUs using the drm/imagination driver. Paired geometry and fragment jobs were not counted as scheduler dependencies, so an almost-full command queue could be overrun, causing warnings and possible GPU job timeouts. Systems without PowerVR hardware are not affected.

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.