From 084606befb45507e9241b5555f86196fe08530f6 Mon Sep 17 00:00:00 2001 From: John Lo Date: Tue, 19 Jun 2018 15:27:48 -0400 Subject: Check get packet template allocation failure (VPP-1321) After calling vlib_packet_template_get_packet(), make sure packet buffer is allocated before using it. Change-Id: Idb5199f4e2c9596137b2101e502d611f474a6ffe Signed-off-by: John Lo --- src/vnet/ip/ip6_neighbor.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/vnet/ip/ip6_neighbor.c') diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c index e281d7e1d2f..6d91224c0b4 100644 --- a/src/vnet/ip/ip6_neighbor.c +++ b/src/vnet/ip/ip6_neighbor.c @@ -466,6 +466,8 @@ ip6_nbr_probe (ip_adjacency_t * adj) h = vlib_packet_template_get_packet (vm, &im->discover_neighbor_packet_template, &bi); + if (!h) + return; hi = vnet_get_sup_hw_interface (vnm, adj->rewrite_header.sw_if_index); @@ -3285,6 +3287,8 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, h0 = vlib_packet_template_get_packet (vm, &im->discover_neighbor_packet_template, &bi0); + if (!h0) + continue; /* * Build ethernet header. @@ -5037,6 +5041,9 @@ send_ip6_na_w_addr (vlib_main_t * vm, vlib_packet_template_get_packet (vm, &i6m->discover_neighbor_packet_template, &bi); + if (!h) + return; + ip6_set_reserved_multicast_address (&h->ip.dst_address, IP6_MULTICAST_SCOPE_link_local, IP6_MULTICAST_GROUP_ID_all_hosts); -- cgit 1.2.3-korg