Bug ID 472106: TMM crash in a rare case of flow optimization

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Fixed In:
11.6.0, 11.5.4 HF3

Opened: Jul 17, 2014

Severity: 2-Critical


During a special case of optimization the peer connflow is released. Subsequent references to connflow result in crash.


Traffic disrupted while tmm restarts.


When PEM hudfilter is optimized & server sends a reset, the code checks a non-existent peer connection.



Fix Information

The code path checks for NULL connflow before attempting to access the data structure.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips