misc: check return values from vlib_buffer_copy(...)

[vpp.git] / src / plugins / dhcp / dhcp4_proxy_node.c

diff --git a/src/plugins/dhcp/dhcp4_proxy_node.c b/src/plugins/dhcp/dhcp4_proxy_node.c
index 53c95c0..28c3e62 100644 (file)
--- a/src/plugins/dhcp/dhcp4_proxy_node.c
+++ b/src/plugins/dhcp/dhcp4_proxy_node.c
@@ -364,6 +364,13 @@ dhcp_proxy_to_server_input (vlib_main_t * vm,
                  u32 ci0;
 
                  c0 = vlib_buffer_copy (vm, b0);
+                 if (c0 == NULL)
+                   {
+                     vlib_node_increment_counter
+                       (vm, dhcp_proxy_to_server_node.index,
+                        DHCP_PROXY_ERROR_ALLOC_FAIL, 1);
+                     continue;
+                   }
                  VLIB_BUFFER_TRACE_TRAJECTORY_INIT (c0);
                  ci0 = vlib_get_buffer_index (vm, c0);
                  server = &proxy->dhcp_servers[ii];