Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6
Fixed In:
13.0.0
Opened: Nov 08, 2016 Severity: 2-Critical
HTTP2 allocates a block of memory for collecting stats on a connection. If the connection is aborted for any reason, tmm may try to update stats prior the memory is allocated.
Traffic disrupted while tmm restarts.
HTTP2 profile is configured and assigned to a virtual.
None
A fix stops HTTP2 from accessing stats prior memory is allocated preventing TMM crash for this reason.