The earliest recollection of this bug is traced back to PAN-OS 9.1.2 - July 22, 2025. This bug is fixed in PAN-OS versions 9.1.2. Fixed an issue where a process ( useridd ) restarted due to a buffer overflow when the time-to-live (TTL) and Idle Timeout values were set to Never , a timing issue between user group context and a process ( sysd ) callback, and a group mapping issue when multiple group mappings fetched the same groups with different override domains. For more information: https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-2-addressed-issues