Bug ID 1029397: Tmm may crash with SIP-ALG deployment in a particular race condition

Last Modified: Feb 07, 2024

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

Fixed In:
17.0.0, 16.1.2.2, 15.1.5, 14.1.4.6

Opened: Jun 28, 2021

Severity: 2-Critical

Symptoms

Tmm crashes in SIP-ALG deployment, when lsn DB callback is returned from a different tmm, and the SIP connection has been lost on tmm where the REGISTER request arrived.

Impact

Traffic disrupted while tmm restarts

Conditions

--- SIP-ALG is deployed --- Processing of SIP REGISTER message at server side --- lsn DB entry is mapped to a different tmm

Workaround

NA

Fix Information

Tmm no longer crashes in this race condition

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips