Bug ID 500640: TMM core might occur if FLOW_INIT iRule attached to Virtual server

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP AFM(all modules)

Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.5.2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3

Fixed In:
12.0.0, 11.6.0 HF4, 11.5.2 HF1

Opened: Jan 12, 2015
Severity: 3-Major
Related Article:


TMM core is seen when FLOW_INIT iRule is applied to Virtual server for global rule


TMM core and restart. Traffic disrupted while tmm restarts.


When logging is enabled and a FLOW_INIT rule is applied and the system gets packets but cannot find virtual server.



Fix Information

Added check for NULL context in connflow to avoid rare crash bug.

Behavior Change