ipsec: fix buffer alloc

Type: fix

Change-Id: I0f12c19b79df19b692f18ac13d6c32341853b764
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c
index 80b3246..0d14fe5 100644 (file)
--- a/src/vnet/ipsec/esp_decrypt.c
+++ b/src/vnet/ipsec/esp_decrypt.c
@@ -527,7 +527,13 @@ esp_decrypt_inline (vlib_main_t * vm,
                                {
                                  /* no space, need to allocate new buffer */
                                  u32 tmp_bi = 0;
-                                 vlib_buffer_alloc (vm, &tmp_bi, 1);
+                                 if (1 != vlib_buffer_alloc (vm, &tmp_bi, 1))
+                                   {
+                                     b[0]->error = node->errors
+                                       [ESP_DECRYPT_ERROR_NO_BUFFERS];
+                                     next[0] = ESP_DECRYPT_NEXT_DROP;
+                                     goto next;
+                                   }
                                  tmp_b = vlib_get_buffer (vm, tmp_bi);
                                  esn = tmp_b->data;
                                  pd->free_buffer_index = tmp_bi;