diff --git a/README.md b/README.md
index 125eaf56c..b34945fb4 100755
--- a/README.md
+++ b/README.md
@@ -220,6 +220,7 @@ Please select according to languages:
 
 ### V2 changes
 
+* v2.0, 2018-07-17, Merge [#1176][bug #1176], fix scaned issues. 2.0.248
 * v2.0, 2018-02-28, Merge [#1077][bug #1077], fix crash for edge HLS. 2.0.247
 * v2.0, 2018-02-13, Fix [#1059][bug #1059], support vhost in stream parameters. 2.0.246
 * v2.0, 2018-01-07, Merge [#1045][bug #1045], fix [#1044][bug #1044], TCP connection alive detection. 2.0.245
@@ -1421,6 +1422,7 @@ Winlin
 [bug #1045]: https://github.com/ossrs/srs/issues/1045
 [bug #1059]: https://github.com/ossrs/srs/issues/1059
 [bug #1077]: https://github.com/ossrs/srs/issues/1077
+[bug #1176]: https://github.com/ossrs/srs/issues/1176
 [bug #xxxxxxxxxx]: https://github.com/ossrs/srs/issues/xxxxxxxxxx
 
 [bug #735]: https://github.com/ossrs/srs/issues/735
diff --git a/trunk/src/app/srs_app_server.cpp b/trunk/src/app/srs_app_server.cpp
index 0e0cb18df..1f0a25d91 100644
--- a/trunk/src/app/srs_app_server.cpp
+++ b/trunk/src/app/srs_app_server.cpp
@@ -653,6 +653,7 @@ srs_error_t SrsServer::acquire_pid_file()
     
     if (fcntl(fd, F_SETLK, &lock) == -1) {
         if(errno == EACCES || errno == EAGAIN) {
+            ::close(fd);
             srs_error("srs is already running!");
             return srs_error_new(ERROR_SYSTEM_PID_ALREADY_RUNNING, "srs is already running");
         }
diff --git a/trunk/src/kernel/srs_kernel_codec.cpp b/trunk/src/kernel/srs_kernel_codec.cpp
index 90c5cf360..b8cdb7fac 100644
--- a/trunk/src/kernel/srs_kernel_codec.cpp
+++ b/trunk/src/kernel/srs_kernel_codec.cpp
@@ -203,7 +203,7 @@ bool SrsFlvAudio::aac(char* data, int size)
 // 1 = 11 kHz = 11025 Hz
 // 2 = 22 kHz = 22050 Hz
 // 3 = 44 kHz = 44100 Hz
-int srs_flv_srates[] = {5512, 11025, 22050, 44100};
+int srs_flv_srates[] = {5512, 11025, 22050, 44100, 0};
 
 // the sample rates in the codec,
 // in the sequence header.
diff --git a/trunk/src/service/srs_service_st.cpp b/trunk/src/service/srs_service_st.cpp
index 9a5eea12e..a30c6d524 100644
--- a/trunk/src/service/srs_service_st.cpp
+++ b/trunk/src/service/srs_service_st.cpp
@@ -136,6 +136,7 @@ srs_error_t srs_socket_connect(string server, int port, int64_t tm, srs_netfd_t*
     srs_assert(!stfd);
     stfd = st_netfd_open_socket(sock);
     if(stfd == NULL){
+        ::close(sock);
         return srs_error_new(ERROR_ST_OPEN_SOCKET, "open socket");
     }