Bug ID 522579: TMM memory leak when RAR messages received from PCRF to delete for a non-existing sessions in PEM

Last Modified: Jul 18, 2026

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

Known Affected Versions:
11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.0.0

Opened: May 11, 2015

Severity: 3-Major

Symptoms

TMM memory leak. Memory consumption of TMM increases constantly and never reduces.

Impact

Memory leak and eventually TMM will have to be restarted.

Conditions

RAR messages with session-release cause received from PCRF for sessions where PEM does not have.

Workaround

Make sure RAR messages are not sent for sessions which are non-existent in PEM

Fix Information

This issues has been fixed now. No more memory leaks when RAR messages with session-release AVP set for non-existent sessions in PEM

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips