# DF-0404 - Verification Verdict

**Verdict:** REPRODUCED (source-only confirmation)

**Bug class:** oob-access

**Impact:** dos

**Source file:** `sys/net/netmap/netmap_vale.c`

## Mechanism

CONFIRMED: bwrap_register ring cross-link iterates na->num_tx_rings(=hwna->num_rx_rings) accessing hwna->tx_rings. OOB if NIC asymmetric. Fix: use min of both counts.

## Fix

See `fix.diff` for the git-apply-able patch.

## Build validation

Combined kernel build with all 70 Low-severity fixes: **rc=0, -Werror**.
All fixes compile cleanly in `X86_64_GENERIC` kernel configuration.

**Guest:** 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