Last Modified: Oct 12, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.1.3.4, 17.1.3.5, 17.5.1.8, 17.5.1.9, 21.1.0.1, 21.1.0.2
Opened: Oct 02, 2026 Severity: 2-Critical
The tmm process may become stuck in a restart loop where it cores on startup, after upgrading to 17.5.1.9
Tmm process unable to start, BIG-IP unable to start up.
- DNS(GTM) is provisioned - GeoIP database is present in /shared/GeoIP/ - selinux context for the geoip database files is incorrect (should be "shared_geoip_t")
View the current selinux context: ls -RZ /shared/GeoIP The output should show "system_u:object_r:shared_geoip_t:s0" against each file/directory If it shows a different label, such as 'default_t', then restore the expected selinux context to the geoip database files: restorecon -Rv /shared/GeoIP
None