DF-0450 environment
===================
uname -a (unpatched baseline):
  DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

uname -a (single-fix kernel, Phase 8):
  DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #1: Sat Jul 18 12:48:52 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

Modules loaded for the run:
  kernel, ehci.ko, xhci.ko, ng_socket.ko, netgraph.ko

libnetgraph: /usr/lib/libnetgraph.a + headers in /usr/include/netgraph/

sysctl kern.securelevel: -1

Build env for the fixed module + kernel:
  make -j6 nativekernel KERNCONF=X86_64_GENERIC
  netgraph.ko rebuilt as part of the same nativekernel run
  (the standalone kmod build in sys/netgraph/netgraph does NOT produce a
   loadable .ko; only the nativekernel target produces the proper ELF module)