Bug ID 599720: TMM may crash in bigtcp due to null pointer dereference

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
13.0.0, 12.1.2 HF1

Opened: Jun 16, 2016

Severity: 2-Critical


TMM crashed in bigtcp_queue_pkt() due to null pointer dereference of clientside flow.


Traffic disrupted while tmm restarts.


This only occurs for serverside flow whose peer no longer exists.


No workaround.

Fix Information

A problem of null pointer dereferece in bigtcp has been fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips