Bug ID 591117: APM ACL construction may cause TMM to core if TMM is out of memory

Last Modified: Sep 13, 2023

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

Known Affected Versions:
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, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
13.0.0, 12.1.2, 11.6.1 HF1, 11.5.4 HF3

Opened: May 04, 2016

Severity: 2-Critical

Symptoms

During ACL construction, TMM send queries regarding assigned ACL information. If the reply message contains error message of out-of-memory, TMM was not handling this error message properly, and cause TMM to core.

Impact

Traffic disrupted while tmm restarts.

Conditions

BIG-IP is extremely loaded and out of memory.

Workaround

None

Fix Information

When handling the error reply message of out-of-memory during ACL construction, TMM can handle it without causing TMM to crash.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips