diff --git a/src/bank-lib/fakebank.c b/src/bank-lib/fakebank.c
index 13bfa1cb5..c4934fd27 100644
--- a/src/bank-lib/fakebank.c
+++ b/src/bank-lib/fakebank.c
@@ -192,6 +192,15 @@ TALER_FAKEBANK_check_empty (struct TALER_FAKEBANK_Handle *h)
 void
 TALER_FAKEBANK_stop (struct TALER_FAKEBANK_Handle *h)
 {
+  struct Transaction *t;
+
+  while (NULL != (t = h->transactions_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (h->transactions_head,
+                                 h->transactions_tail,
+                                 t);
+    GNUNET_free (t);
+  }
   if (NULL != h->mhd_task)
   {
     GNUNET_SCHEDULER_cancel (h->mhd_task);
diff --git a/src/exchange-lib/exchange_api_refresh.c b/src/exchange-lib/exchange_api_refresh.c
index 98c6c086b..9a9c6b7eb 100644
--- a/src/exchange-lib/exchange_api_refresh.c
+++ b/src/exchange-lib/exchange_api_refresh.c
@@ -1563,14 +1563,14 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
 {
   unsigned int i;
   json_t *jsona;
-  struct GNUNET_JSON_Specification spec[] = {
+  struct GNUNET_JSON_Specification outer_spec[] = {
     GNUNET_JSON_spec_json ("ev_sigs", &jsona),
     GNUNET_JSON_spec_end()
   };
 
   if (GNUNET_OK !=
       GNUNET_JSON_parse (json,
-                         spec,
+                         outer_spec,
                          NULL, NULL))
   {
     GNUNET_break_op (0);
@@ -1580,12 +1580,14 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
   {
     /* We expected an array of coins */
     GNUNET_break_op (0);
+    GNUNET_JSON_parse_free (outer_spec);
     return GNUNET_SYSERR;
   }
   if (rrh->md->num_fresh_coins != json_array_size (jsona))
   {
     /* Number of coins generated does not match our expectation */
     GNUNET_break_op (0);
+    GNUNET_JSON_parse_free (outer_spec);
     return GNUNET_SYSERR;
   }
   for (i=0;i<rrh->md->num_fresh_coins;i++)
@@ -1597,7 +1599,6 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
     struct GNUNET_CRYPTO_RsaSignature *sig;
     struct TALER_CoinSpendPublicKeyP coin_pub;
     struct GNUNET_HashCode coin_hash;
-
     struct GNUNET_JSON_Specification spec[] = {
       GNUNET_JSON_spec_rsa_signature ("ev_sig", &blind_sig),
       GNUNET_JSON_spec_end()
@@ -1614,6 +1615,7 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
                            NULL, NULL))
     {
       GNUNET_break_op (0);
+      GNUNET_JSON_parse_free (outer_spec);
       return GNUNET_SYSERR;
     }
 
@@ -1637,11 +1639,13 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
     {
       GNUNET_break_op (0);
       GNUNET_CRYPTO_rsa_signature_free (sig);
+      GNUNET_JSON_parse_free (outer_spec);
       return GNUNET_SYSERR;
     }
     coin_privs[i] = fc->coin_priv;
     sigs[i].rsa_signature = sig;
   }
+  GNUNET_JSON_parse_free (outer_spec);
   return GNUNET_OK;
 }
 
diff --git a/src/exchange-lib/exchange_api_reserve.c b/src/exchange-lib/exchange_api_reserve.c
index 2b07223af..926157a86 100644
--- a/src/exchange-lib/exchange_api_reserve.c
+++ b/src/exchange-lib/exchange_api_reserve.c
@@ -115,7 +115,7 @@ parse_reserve_history (const json_t *history,
     struct GNUNET_JSON_Specification hist_spec[] = {
       GNUNET_JSON_spec_string ("type", &type),
       TALER_JSON_spec_amount ("amount",
-                       &amount),
+                              &amount),
       /* 'wire' and 'signature' are optional depending on 'type'! */
       GNUNET_JSON_spec_end()
     };
@@ -185,9 +185,9 @@ parse_reserve_history (const json_t *history,
       struct TALER_Amount amount_from_purpose;
       struct GNUNET_JSON_Specification withdraw_spec[] = {
         GNUNET_JSON_spec_fixed_auto ("signature",
-                             &sig),
+                                     &sig),
         GNUNET_JSON_spec_fixed_auto ("details",
-                             &withdraw_purpose),
+                                     &withdraw_purpose),
         GNUNET_JSON_spec_end()
       };
       unsigned int i;
diff --git a/src/exchange-lib/exchange_api_track_transfer.c b/src/exchange-lib/exchange_api_track_transfer.c
index 417d065f0..4cfd07361 100644
--- a/src/exchange-lib/exchange_api_track_transfer.c
+++ b/src/exchange-lib/exchange_api_track_transfer.c
@@ -138,6 +138,7 @@ check_track_transfer_response_ok (struct TALER_EXCHANGE_TrackTransferHandle *wdh
       {
         GNUNET_break_op (0);
         GNUNET_CRYPTO_hash_context_abort (hash_context);
+        GNUNET_JSON_parse_free (spec);
         return GNUNET_SYSERR;
       }
       /* build up big hash for signature checking later */
@@ -166,6 +167,7 @@ check_track_transfer_response_ok (struct TALER_EXCHANGE_TrackTransferHandle *wdh
                                          &exchange_pub))
     {
       GNUNET_break_op (0);
+      GNUNET_JSON_parse_free (spec);
       return GNUNET_SYSERR;
     }
     if (GNUNET_OK !=
@@ -173,6 +175,7 @@ check_track_transfer_response_ok (struct TALER_EXCHANGE_TrackTransferHandle *wdh
                                          &exchange_pub))
     {
       GNUNET_break_op (0);
+      GNUNET_JSON_parse_free (spec);
       return GNUNET_SYSERR;
     }
     wdh->cb (wdh->cb_cls,
@@ -184,6 +187,7 @@ check_track_transfer_response_ok (struct TALER_EXCHANGE_TrackTransferHandle *wdh
              num_details,
              details);
   }
+  GNUNET_JSON_parse_free (spec);
   TALER_EXCHANGE_track_transfer_cancel (wdh);
   return GNUNET_OK;
 }
diff --git a/src/exchange-lib/test_exchange_api.c b/src/exchange-lib/test_exchange_api.c
index acd087039..337fd297b 100644
--- a/src/exchange-lib/test_exchange_api.c
+++ b/src/exchange-lib/test_exchange_api.c
@@ -1915,6 +1915,7 @@ interpreter_run (void *cls)
       }
       TALER_JSON_hash (contract,
                        &h_contract);
+      json_decref (contract);
       wire = json_loads (cmd->details.deposit.wire_details,
                          JSON_REJECT_DUPLICATES,
                          NULL);
diff --git a/src/exchange-tools/taler-exchange-keyup.c b/src/exchange-tools/taler-exchange-keyup.c
index 4f8a604ea..69d28361f 100644
--- a/src/exchange-tools/taler-exchange-keyup.c
+++ b/src/exchange-tools/taler-exchange-keyup.c
@@ -523,6 +523,7 @@ exchange_keys_update_signkeys ()
   {
     fprintf (stderr,
              "Failed to create signing key directory\n");
+    GNUNET_free (signkey_dir);
     return GNUNET_SYSERR;
   }
 
@@ -530,6 +531,7 @@ exchange_keys_update_signkeys ()
               signkey_duration,
               GNUNET_TIME_UNIT_ZERO /* no overlap for signing keys */,
               &anchor);
+  GNUNET_free (signkey_dir);
 
   while (anchor.abs_value_us < lookahead_sign_stamp.abs_value_us)
   {
diff --git a/src/exchange/taler-exchange-aggregator.c b/src/exchange/taler-exchange-aggregator.c
index 08ea8abe9..e3262962c 100644
--- a/src/exchange/taler-exchange-aggregator.c
+++ b/src/exchange/taler-exchange-aggregator.c
@@ -757,6 +757,7 @@ run_aggregation (void *cls)
                 "Preparing wire transfer of %s to %s\n",
                 amount_s,
                 TALER_B2S (&au->merchant_pub));
+    GNUNET_free (amount_s);
   }
   au->wp = wp;
   au->ph = wp->wire_plugin->prepare_wire_transfer (wp->wire_plugin->cls,
@@ -1095,7 +1096,11 @@ main (int argc,
                           gettext_noop ("background process that aggregates and executes wire transfers to merchants"),
                           options,
                           &run, NULL))
+  {
+    GNUNET_free ((void*) argv);
     return 1;
+  }
+  GNUNET_free ((void*) argv);
   return global_ret;
 }
 
diff --git a/src/util/util.c b/src/util/util.c
index 9defa85ff..1f7931a43 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -84,7 +84,11 @@ TALER_config_get_denom (const struct GNUNET_CONFIGURATION_Handle *cfg,
     return GNUNET_NO;
   if (GNUNET_OK != TALER_string_to_amount (str,
                                            denom))
+  {
+    GNUNET_free (str);
     return GNUNET_SYSERR;
+  }
+  GNUNET_free (str);
   return GNUNET_OK;
 }