Bug ID 664461: Replacing HTTP payload can cause tmm restart

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3

Fixed In:
13.1.0, 13.0.1,

Opened: May 12, 2017

Severity: 2-Critical

Related Article: K16804728


Under certain conditions, using the [ HTTP::payload replace ... ] iRule can result in the tmm restarting.


Traffic disrupted while tmm restarts.


Occurs when server response is non-chunked, does not contain a Content-Length header, an iRule adds a Content-Length header and performs an HTTP::payload replace command where the length is shorter than the original body length.



Fix Information

The HTTP::payload replace command no longer causes tmm restarts under certain conditions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips