baseline kernel: DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
                 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64 (stock INVARIANTS)
fix kernel:      DragonFly dfbsd 6.5-DEVELOPMENT #1: Wed Sep 2 10:31:50 UTC 2026
                 (same tree + fix.diff, nativekernel, gcc 8.3 [DragonFly])
vCPUs: 6 (hw.ncpu=6, net.netisr.ncpus=6)
PoC user: maxx (uid 1001, unprivileged)
sysctl kern.ipc.soaccept_pred_fast=1, socreate_fast=1, soconnect_async=1, soclose_fast=1