diff --git a/sys/net/if_vxlan.c b/sys/net/if_vxlan.c
--- a/sys/net/if_vxlan.c
+++ b/sys/net/if_vxlan.c
@@ -2849,6 +2849,12 @@
 		return (ENOENT);
 
 	ifp = sc->vxl_ifp;
+	if (m->m_len < ETHER_HDR_LEN &&
+	    (m = m_pullup(m, ETHER_HDR_LEN)) == NULL) {
+		*m0 = NULL;
+		error = ENOBUFS;
+		goto out;
+	}
 	eh = mtod(m, struct ether_header *);
 
 	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {