Fix memory leaks and dereference without null checksubmit/tizen/20210615.081101accepted/tizen/unified/20210616.132525

Change-Id: I7accd1386302c26e5bdfa8aee224fe60defc50af
Signed-off-by: Jaehyun Kim <jeik01.kim@samsung.com>

4 files changed, 18 insertions, 0 deletions

diff --git a/plugins/wifi.c b/plugins/wifi.c
index 6a886d5c..4257a5d4 100755
--- a/plugins/wifi.c
+++ b/plugins/wifi.c
@@ -2643,6 +2643,9 @@ static int get_latest_connections(int max_ssids,
 				g_sequence_free(latest_list);
 				g_key_file_free(keyfile);
 				g_free(ssid);
+#if defined TIZEN_EXT
+				g_strfreev(services);
+#endif
 				return -ENOMEM;
 			}
 
@@ -5244,6 +5247,8 @@ static void network_changed(GSupplicantNetwork *network, const char *property)
 			need_save = connman_device_set_last_connected_ident(wifi->device, service_ident);
 			if (need_save)
 				connman_device_save_last_connected(wifi->device);
+
+			g_free(service_ident);
 		}
 
 		connman_network_set_last_connected_bssid(connman_network,
diff --git a/src/service.c b/src/service.c
index e4dbc32f..2b69a0bb 100755
--- a/src/service.c
+++ b/src/service.c
@@ -1834,6 +1834,7 @@ static void __connman_manage_saved_profiles()
 		if (!entry) {
 			g_sequence_free(profile_list);
 			g_key_file_free(keyfile);
+			g_strfreev(services);
 			return;
 		}
 
@@ -1857,6 +1858,7 @@ static void __connman_manage_saved_profiles()
 	}
 
 	g_sequence_free(profile_list);
+	g_strfreev(services);
 }
 #endif
 
diff --git a/vpn/plugins/openvpn.c b/vpn/plugins/openvpn.c
index 9e8ccebf..ef0bf782 100755
--- a/vpn/plugins/openvpn.c
+++ b/vpn/plugins/openvpn.c
@@ -152,8 +152,15 @@ static struct nameserver_entry *ov_append_dns_entries(const char *key,
 				options[2]) {
 
 		entry = g_try_new(struct nameserver_entry, 1);
+#if defined TIZEN_EXT
+		if (!entry) {
+			g_strfreev(options);
+			return NULL;
+		}
+#else
 		if (!entry)
 			return NULL;
+#endif
 
 		entry->nameserver = g_strdup(options[2]);
 		entry->id = atoi(key + 15); /* foreign_option_XXX */
diff --git a/vpn/vpn-provider.c b/vpn/vpn-provider.c
index 0e01ca2a..8d2836ef 100755
--- a/vpn/vpn-provider.c
+++ b/vpn/vpn-provider.c
@@ -2746,6 +2746,10 @@ void vpn_provider_set_data(struct vpn_provider *provider, void *data)
 
 void *vpn_provider_get_plugin_data(struct vpn_provider *provider)
 {
+#if defined TIZEN_EXT
+	if (!provider)
+		return NULL;
+#endif
 	return provider->plugin_data;
 }