Bug ID 625172: tmm crashes when classification is enabled and ftp traffic is flowing trough the box

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP PEM(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

Fixed In:
13.0.0, 12.1.2 HF1

Opened: Oct 26, 2016
Severity: 2-Critical


tmm crash


Traffic disrupted while tmm restarts.


1. classification profile attached to the virtual server 2. ftp traffic flows through the system 3. complex configuration with iRules and multiple modules enabled


remove classification profile from the virtual server

Fix Information

Incorrect memory management in one of classification matching mechanisms led to a crash.

Behavior Change