Bug ID 532022: tmm can crash when the reply pkt to a service flow request is a DoS pkt

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP AFM(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: Jul 07, 2015

Severity: 3-Major

Symptoms

tmm can crash

Impact

Traffic disrupted while tmm restarts.

Conditions

If a service flow (or any flow which does not have a listener) sends a request out and we get back a packet which needs to be counted towards a network DoS vector, it can cause the tmm to crash.

Workaround

Don't configure AFM DoS vectors.

Fix Information

A crash bug in DoS protection has been fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips