Bug ID 533203: TMM may core on resuming iRule if the underlying flow has been deleted.

Last Modified: May 14, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
11.6.0 HF6

Opened: Jul 13, 2015
Severity: 2-Critical
Related AskF5 Article:
K98322810

Symptoms

TMM may core on resuming iRule if the underlying flow has been deleted.

Impact

Traffic disrupted while tmm restarts.

Conditions

A flow is deleted (RST from the other end is one way) while an iRule operating on that flow is parked. On resumption, the iRule accesses freed memory.

Workaround

Do not use iRules that may cause parking.

Fix Information

TMM no longer cores on resuming iRule if the underlying flow has been deleted.

Behavior Change