Bug ID 744407: While the client has been closed, iRule function should not try to check on a closed session

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.1.0, 15.1.0.1

Fixed In:
16.0.0, 15.1.0.2, 15.0.1.3, 13.1.3.4

Opened: Sep 18, 2018
Severity: 3-Major

Symptoms

tmm cores. System posts a message: access::session exists is used during CLIENT_CLOSED iRule event.

Impact

tmm may core. Traffic disrupted while tmm restarts.

Conditions

-- Client has closed the connection. -- iRule function tries to check on a closed session. -- An 'access session::exists' command is used inside the iRule event CLIENT_CLOSED.

Workaround

Do not use the iRule command 'access session::exists' inside CLIENT_CLOSED.

Fix Information

Command execution of 'access::session exists' is now prevented in the iRule event CLIENT_CLOSED.

Behavior Change