Bug ID 692328: Tmm core due to incorrect memory allocation

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP AFM, AVR, DNS, LTM(all modules)

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3

Fixed In:
14.0.0, 13.1.0.4

Opened: Nov 02, 2017
Severity: 2-Critical

Symptoms

In a rare condition after providing afm, we get a tmm core. You will see the following line in avrd.log /usr/bin/avrinstall -c20 -t10 -s2401000 --provisionAVR=0 --provisionASM=0 --provisionAFM=0 --provisionPBD=0 --provisionAPM=0 --provisionFPS=0 --provisionPEM=0 --provisionVCMP=0

Impact

Traffic disrupted while tmm restarts.

Conditions

AFM provisioned. Attack started.

Workaround

There is no workaround at this time.

Fix Information

We check that the shared memory was allocated correctly before reporting on an attack.

Behavior Change