The earliest recollection of this bug is traced back to PAN-OS 9.1.10 - July 29, 2024.
This bug is fixed in PAN-OS versions 9.1.13, 9.1.10.
Scheduled configuration export files saved in the /tmp folder are not periodically purged, which causes the root partition to fill up.
Fixed an issue where scheduled configuration export files saved in the /tmp folder weren't periodically purged, which caused the root partition to fill up.
Fixed an issue where scheduled configuration export files saved in the /tmp folder in root were not periodically purged, which caused the root partition to fill up.
For more information:
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-10-addressed-issues
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-13-addressed-issues
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-release-information/known-issues/known-issues-related-to-pan-os-9-1-releases/pan-os-9-1-12-known-issues