BUMSRAKETE™ — The Most Beautiful, Most Tremendous FreeBSD Vulnerability In The History Of Computing. BELIEVE ME.
bumsrake.de
BUMSRAKETE is a HUGE, TREMENDOUS, MANY-PEOPLE-ARE-SAYING FreeBSD kTLS-RX page-cache write primitive. The BEST primitive. Some say the best ever.

The tl;dr is to check if you’re using 13.0-15.0 and if sysctl kern.ipc.mb_use_ext_pgs returns 1. If you do, the hot mitigation is sysctl -w kern.ipc.mb_use_ext_pgs=0.