Bug ID 670238: TMM may crash due to wrong flow assigned to fragmented IPv4 packet

Last Modified: Apr 28, 2025

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0

Opened: Jun 21, 2017

Severity: 2-Critical

Related Article: K26297385

Symptoms

TMM may crash due to wrong flow assigned to fragmented IPv4 packet.

Impact

Traffic disrupted while tmm restarts.

Conditions

This occurs when either of the following conditions occur: -- The connection is re-accepted. -- The FLOW_INIT iRule event is used.

Workaround

None.

Fix Information

TMM no longer crashes, and the correct flow is assigned.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips