diff options
| author |   John Lo <loj@cisco.com> | 2018-06-19 15:27:48 -0400 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2018-06-19 21:26:10 +0000 |
| commit | 084606befb45507e9241b5555f86196fe08530f6 (patch) | |
| tree | 25982dd871832335b2f62159657c3b3b31e361f2 /src/vnet/ip/ip6_neighbor.c | |
| parent | 7e607a73898b81c21a24038a2350fdda3b1c67ff (diff) | |
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 <loj@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip6_neighbor.c')
| -rw-r--r-- | src/vnet/ip/ip6_neighbor.c | 7 |
1 files changed, 7 insertions, 0 deletions
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); |