Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP All
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: Jun 28, 2014 Severity: 2-Critical
The TMM may assert when processing packet fragments that do not contain an L4 header while using a FastL4 profile.
The TMM crashes and restarts.
FastL4 profile enabled IP fragment reassembly not enabled in the profile
Enable "Reassemble IP Fragments" in the FastL4 profile.
BIG-IP no longer asserts on "l4hdr set".