Bug ID 425313: tmm core on invalid iRule command

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.4.0

Fixed In:
11.5.0, 11.4.1, 11.4.0 HF4

Opened: Jul 16, 2013
Severity: 2-Critical
Related AskF5 Article:
K14989

Symptoms

When using an iRule with the POLICY::targets and/or POLICY::controls commands with an unsupported parameter, tmm might core.

Impact

Traffic disrupted while tmm restarts.

Conditions

iRule expressions like [POLICY::target nonsense] or [POLICY::controls abracadabra] are likely to cause a crash when they are executed.

Workaround

Make sure valid parameters are passed to POLICY::targets and POLICY::controls.

Fix Information

iRule expressions like [POLICY::target nonsense] or [POLICY::controls abracadabra] no longer cause a crash when they are executed, but rather cause a Tcl error to be logged in the LTM log.

Behavior Change