From: Neale Ranns Date: Mon, 16 Jan 2017 17:09:40 +0000 (+0100) Subject: DHCPv6 Proxy; fix crash when DHCPv6 prxy is not configured and client packet is received X-Git-Tag: v17.04-rc1~358 X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=3bd11d786e2cdbc4d7f23ebde12e1691713bdf7a;p=vpp.git DHCPv6 Proxy; fix crash when DHCPv6 prxy is not configured and client packet is received Change-Id: I0250acdee803545b8923549e2099863a95544691 Signed-off-by: Neale Ranns --- diff --git a/src/vnet/dhcpv6/proxy_node.c b/src/vnet/dhcpv6/proxy_node.c index 40df35cd059..4dd2239ffaa 100644 --- a/src/vnet/dhcpv6/proxy_node.c +++ b/src/vnet/dhcpv6/proxy_node.c @@ -244,7 +244,11 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, /* Send to DHCPV6 server via the configured FIB */ rx_sw_if_index = sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX]; rx_fib_idx = im->fib_index_by_sw_if_index [rx_sw_if_index]; - server_idx = dpm->dhcp6_server_index_by_rx_fib_index[rx_fib_idx]; + + if (vec_len(dpm->dhcp6_server_index_by_rx_fib_index) <= rx_fib_idx) + goto no_server; + + server_idx = dpm->dhcp6_server_index_by_rx_fib_index[rx_fib_idx]; if (PREDICT_FALSE (pool_is_free_index (dpm->dhcp6_servers, server_idx)))