Bug ID 643396: Using FLOW_INIT iRule may lead to TMM memory leak or crash

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
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, 13.0.0

Fixed In:
13.1.0, 13.0.0 HF1, 12.1.2 HF1

Opened: Feb 06, 2017
Severity: 2-Critical
Related Article:
K34553627

Symptoms

Memory leak in TMM or even crash may be observed if using FLOW_INIT event in iRules.

Impact

TMM memory leak or crash. Traffic disrupted while tmm restarts.

Conditions

iRule triggered by FLOW_INIT event is in use. Note: The leak is difficult to observe, and the crash requires specific steps, so encountering this issue is relatively uncommon.

Workaround

None.

Fix Information

Fixed a memory leak in the FLOW_INIT iRule event.

Behavior Change