Bug ID 627246: TMM memory leak when ASM policy configured on virtual server

Last Modified: Aug 19, 2026

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

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, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 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, 11.6.3

Opened: Nov 07, 2016

Severity: 4-Minor

Related Article: K09336400

Symptoms

TMM memory leak in hud_oob when ASM policy configured on virtual server.

Impact

System leaks 64 bytes of memory. TMM might run out of memory and eventually crash.

Conditions

-- ASM policy is configured on a virtual server. -- URL access via the virtual server.

Workaround

None. But disabling ASM policy configuration on the virtual server can alleviate the problem.

Fix Information

A memory leak in hud_oob when ASM policy configured on virtual server has been fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips