Bug ID 753141: Hardware returning incorrect type of entry when notifying software might cause tmm crash

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,

Fixed In:
15.0.0, 14.1.4

Opened: Dec 14, 2018
Severity: 3-Major


Potential tmm crash when hardware returns incorrect type of entry when notifying software.


tmm crashes and restart. Traffic disrupted while tmm restarts.


-- sPVA is not programmed with blacklist or greylist entries. -- Hardware returns an incorrect blacklist or greylist entry to the software.



Fix Information

This release provides a defensive check in software to not crash, and to dump the hardware registers when this happens. This will help to debug the hardware better in the future.

Behavior Change