Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP LTM
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, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4
Fixed In:
12.1.0, 11.6.3.3
Opened: Nov 03, 2015 Severity: 3-Major
tmm segv crash in tandem with log indicating "iRule execution error".
Traffic disrupted while tmm restarts.
Virtual server with request-adapt or response-adapt profile and iRule which is capable of generating a Tcl runtime error.
Correct iRule to avoid runtime error.
iRule execution error under virtual server with adaptation profile does not crash tmm