Bug ID 1584297: PEM fastl4 offload with fastl4 leaks memory

Last Modified: Dec 05, 2024

Affected Product(s):
BIG-IP PEM(all modules)

Known Affected Versions:
17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2

Opened: May 06, 2024

Severity: 3-Major

Symptoms

A tmm memory leak occurs while passing PEM traffic. The tmctl memory_usage_stat command shows pem_hud_cb_data memory is high.

Impact

A memory leak occurs. This could cause tmm to crash. Traffic disrupted while tmm restarts.

Conditions

-- A PEM profile with fast-pem enabled -- The PEM profile is assigned to a Fast L4 virtual server

Workaround

Either of these workarounds will be effective. -- Do not use Fast L4 offload for Fast L4 PEM virtual servers -- Do not use Fast L4 for the PEM virtual if fast-pem is enabled

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips