Bug ID 500640: TMM core might occur if FLOW_INIT iRule attached to Virtual server

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.6.2 HF1, 11.6.0, 11.6.1, 11.6.2, 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, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.0 HF4, 11.5.2 HF1

Opened: Jan 12, 2015

Severity: 3-Major

Related Article: K21264026

Symptoms

TMM core is seen when FLOW_INIT iRule is applied to Virtual server for global rule

Impact

TMM core and restart. Traffic disrupted while tmm restarts.

Conditions

When logging is enabled and a FLOW_INIT rule is applied and the system gets packets but cannot find virtual server.

Workaround

None.

Fix Information

Added check for NULL context in connflow to avoid rare crash bug.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips