Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11
Fixed In:
11.6.0, 11.5.2
Opened: Jan 07, 2014 Severity: 2-Critical Related Article:
K16024
In a FastL4 virtual server with hardware cookie enabled and accelerated, and there is a SERVER_CONNECTED rule is in place, when the SERVER_CONNECTED rule fails, the flow is aborted while it is still in the packet path, and tmm produces a segv and crashes.
TMM crashes.
This occurs with a FastL4 virtual server, syncookie enabled, PVA accelerated and configured with SERVER_CONNECTED rule (this rule fails).
turn off syncookie
TMM no longer crashes when there is a FastL4 virtual server, syncookie is enabled, PVA is accelerated, and a configured SERVER_CONNECTED rule fails.