=== Running reachability probe (proves /dev/netmap absence) ===
DF-0401 reachability probe
--------------------------
[UNREACHABLE] /dev/netmap does not exist: No such file or directory
[UNREACHABLE] netmap subsystem is not loaded/available.
[UNREACHABLE] The VALE forwarding path (nm_bdg_preflush/
              nm_bdg_flush) cannot be entered live.
REACHABILITY_PROBE_RC=2

=== Confirming netmap.ko and /dev/netmap absence ===
ls: /dev/netmap: No such file or directory
ls: /boot/kernel/netmap.ko: No such file or directory
no netmap.ko shipped in /boot/kernel

=== The intended poc (VALE overflow) cannot run because the        ===
=== netmap subsystem does not exist on this kernel. See VERDICT.md ===
=== for the source-level proof that the bug is real but latent.    ===