Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2
Fixed In:
13.0.0, 12.1.2 HF1
Opened: Sep 05, 2016 Severity: 2-Critical
When the 'all' keyword is used with 'class match' on large external datagroups, the results will be incorrect and may result in TMM restarting.
Traffic disrupted while tmm restarts.
iRule utilizing 'all' keyword with 'class match' on large external datagroups. A more unusual case is external datagroups with the tmm.classallocatemetadata bigdb entry set to the non-default 'disable' value.
No reasonable workaround short of not using 'all' keyword with 'class match' in iRules.
'all' keyword with 'class match' now returns the correct results and TMM does not restart.