Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2
Fixed In:
13.0.0, 12.1.3
Opened: Mar 30, 2016 Severity: 4-Minor
TMM may core with a SIGFPE when running two or more WebSocket collect commands in parallel.
TMM may core with a SIGFPE resulting in loss of service.
-- WebSocket profile is attached to the virtual server. -- Multiple iRules with WebSocket collect commands are attached to the virtual server.
Behavior is undefined when multiple collect commands are running at the same time. Rewrite iRules to have only one collect command executing at a time.
iRule documentation was updated and WebSocket filter state machine was changed to reject multiple collect commands.