Bug ID 488105: TMM may generate core during certain config change.

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
11.4.1, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 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, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF10

Opened: Oct 31, 2014
Severity: 3-Major


While the sandbox file is being used by data-plane, if the admin changes configuration to delete this sandbox file, the TMM may generate core due to accessing freed up memory.


TMM may core, which may cause APM service to become unavailable for some time.


While data-plane is handling requests for the sandbox files, if admin deletes it from the control plane.



Fix Information

Access whitelist entries are refcount-ed to prevent freeing of the memory while it is still being used.

Behavior Change