Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 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, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4
Fixed In:
13.0.0, 12.1.4.1
Opened: Aug 20, 2015 Severity: 3-Major Related Article:
K46545161
There is a memory leak in ASM control plane daemons after processing many calls in a long lived process
Memory consumption by ASM control plane daemons increases.
A) Pool member state changes frequently. or B) Manual learning is enabled (versions 12.x)
Restart ASM - which will cause a failover and a down time OR just kill asm_config_server by: ----------------------- pkill -f asm_config_server ----------------------- which will get restarted back by ASM process watchdog in ~15 seconds and should not cause failover nor downtime.
An async worker lifecycle was introduced so long lived processes will now dispatch a fixed number of calls to their workers before retiring them.