X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fipsec%2Fesp_encrypt.c;h=68aeb60885c4e21cecaa57530687219189af19a7;hb=217ba5a9dee79b37099aac8bb262337dc893915a;hp=30c2bf9a8acb4afce92121e1f3c4ede18e994876;hpb=7e78119c257579731c8902556b4a197c3fc3e92e;p=vpp.git

diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index 30c2bf9a8ac..68aeb60885c 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -129,7 +129,8 @@ esp_add_footer_and_icv (vlib_main_t *vm, vlib_buffer_t **last, u8 esp_align,
 				      last[0]->current_length + pad_bytes);
   u16 tail_sz = sizeof (esp_footer_t) + pad_bytes + icv_sz;
 
-  if (last[0]->current_length + tail_sz > buffer_data_size)
+  if (last[0]->current_data + last[0]->current_length + tail_sz >
+      buffer_data_size)
     {
       u32 tmp_bi = 0;
       if (vlib_buffer_alloc (vm, &tmp_bi, 1) != 1)