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-rw-r--r--src/plugins/dhcp/dhcp6_proxy_node.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/plugins/dhcp/dhcp6_proxy_node.c b/src/plugins/dhcp/dhcp6_proxy_node.c
index 929b49e2b41..272c379b6a3 100644
--- a/src/plugins/dhcp/dhcp6_proxy_node.c
+++ b/src/plugins/dhcp/dhcp6_proxy_node.c
@@ -315,8 +315,9 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
link_address_set:
- if ((b0->current_length + sizeof (*id1) + sizeof (*vss1) +
- sizeof (*cmac)) > vlib_buffer_get_default_data_size (vm))
+ if ((b0->current_data + b0->current_length + sizeof (*id1) +
+ sizeof (*vss1) + sizeof (*cmac)) >
+ vlib_buffer_get_default_data_size (vm))
{
error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;