Bug ID 475143: CATEGORY::filetype command may cause tmm to crash and restart

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3

Fixed In:
11.6.0 HF4

Opened: Aug 11, 2014
Severity: 3-Major


If an iRule command is created using the CATEGORY::filetype command, the tmm may eventually suffer a failure, and restart.


Traffic disrupted while tmm restarts.


A bug in the implementation of CATEGORY::filetype iRule command triggers undefined behavior, leading to tmm crash and restart.



Fix Information

The errant code was corrected to remove the undefined behavior.

Behavior Change