Bug ID 974881: Tmm crash with SNAT iRule configured with few supported/unsupported events with diameter traffic

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1

Fixed In:
16.1.0, 16.0.1.2, 15.1.4, 14.1.4.2

Opened: Dec 17, 2020

Severity: 2-Critical

Symptoms

Currently, for diameter, a SNAT iRule can be configured with MR_INGRESS and MR_FAILED events. Certain events can cause tmm to crash.

Impact

Traffic disrupted while tmm restarts.

Conditions

A SNAT iRule is configured with the events CLIENT_ACCEPTED, DIAMETER_INGRESS and DIAMETER_EGRESS for diameter

Workaround

None

Fix Information

Fixed a tmm crash related to handling certain events in an iRule.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips