== 1. Cited typo (netgraph7) ==
724:				NG_MKRESPONSE(resp, msg, sizeof(ips), M_WAITOK | M_NULLOK);

== 2. Twin typo (old netgraph) ==
701:				NG_MKRESPONSE(resp, msg, sizeof(ips), M_NOWAIT);

== 3. struct ng_cisco_ipaddr definition (expect two in_addr = 8 bytes) ==
65:struct ng_cisco_ipaddr {
66-	struct in_addr	ipaddr;		/* IP address */
67-	struct in_addr	netmask;	/* Netmask */
68-};
69-

== 4. ips is a pointer (sizeof(ips) = sizeof(pointer) = 8 on amd64) ==
720:				struct ng_cisco_ipaddr *ips;

== 5. Compile-time size proof (userspace) ==
sizeof(struct ng_cisco_ipaddr) = 8
sizeof(*ips)                    = 8
sizeof(ips)  [pointer, BUGGY]   = 8
VERDICT: on this platform sizes coincide -> NO runtime/security impact