Bug ID 606940: Clustered Multiprocessing (CMP) peer connection may not be removed

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1

Fixed In:
13.0.0, 12.1.2

Opened: Jul 26, 2016

Severity: 3-Major

Symptoms

- High memory usage due to connflow allocations - conn_remove_cf_not_found stat is non-zero

Impact

Low memory may lead to allocation failures that may lead to tmm core

Conditions

CMP with multiple TMMs. CMP peer connection is removed before it has been established.

Workaround

None

Fix Information

Fix validation performed on parsed CMP flow keys that allows unknown CMP connections to be removed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips