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/ethernet/arp.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/vnet/ethernet/arp.c') diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c index 37e3e88c2f2..a17f7dae02b 100644 --- a/src/vnet/ethernet/arp.c +++ b/src/vnet/ethernet/arp.c @@ -352,6 +352,8 @@ arp_nbr_probe (ip_adjacency_t * adj) h = vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template, &bi); + if (!h) + return; hi = vnet_get_sup_hw_interface (vnm, adj->rewrite_header.sw_if_index); @@ -2579,6 +2581,10 @@ send_ip4_garp_w_addr (vlib_main_t * vm, u32 bi = 0; ethernet_arp_header_t *h = vlib_packet_template_get_packet (vm, &i4m->ip4_arp_request_packet_template, &bi); + + if (!h) + return; + clib_memcpy (h->ip4_over_ethernet[0].ethernet, hi->hw_address, sizeof (h->ip4_over_ethernet[0].ethernet)); clib_memcpy (h->ip4_over_ethernet[1].ethernet, hi->hw_address, -- cgit 1.2.3-korg