diff --git a/monitor/packet.c b/monitor/packet.c
index 71f711dc5..397000644 100644
--- a/monitor/packet.c
+++ b/monitor/packet.c
@@ -330,7 +330,8 @@ static void print_packet(struct timeval *tv, struct ucred *cred, char ident,
 	if ((filter_mask & PACKET_FILTER_SHOW_INDEX) &&
 					index != HCI_DEV_NONE) {
 		if (use_color()) {
-			n = sprintf(ts_str + ts_pos, "%s", COLOR_INDEX_LABEL);
+			n = snprintf(ts_str + ts_pos, sizeof(ts_str) - ts_pos,
+				     "%s", COLOR_INDEX_LABEL);
 			if (n > 0)
 				ts_pos += n;
 		}
diff --git a/peripheral/main.c b/peripheral/main.c
index 0f5210403..91adb45fc 100644
--- a/peripheral/main.c
+++ b/peripheral/main.c
@@ -73,7 +73,7 @@ static void prepare_filesystem(void)
 	if (!is_init)
 		return;
 
-	for (i = 0; mount_table[i].fstype; i++) {
+	for (i = 0; mount_table[i].fstype && mount_table[i].target; i++) {
 		struct stat st;
 
 		if (lstat(mount_table[i].target, &st) < 0) {
diff --git a/profiles/audio/a2dp.c b/profiles/audio/a2dp.c
index eba2f9822..d0808c77a 100644
--- a/profiles/audio/a2dp.c
+++ b/profiles/audio/a2dp.c
@@ -1338,9 +1338,12 @@ static gboolean a2dp_reconfigure(gpointer data)
 	if (setup->rsep) {
 		cap = avdtp_get_codec(setup->rsep->sep);
 		rsep_codec = (struct avdtp_media_codec_capability *) cap->data;
+		/* Check that codec really match after closing */
+		if (sep->codec != rsep_codec->media_codec_type)
+			setup->rsep = NULL;
 	}
 
-	if (!setup->rsep || sep->codec != rsep_codec->media_codec_type)
+	if (!setup->rsep)
 		setup->rsep = find_remote_sep(setup->chan, sep);
 
 	if (!setup->rsep) {
diff --git a/profiles/audio/avctp.c b/profiles/audio/avctp.c
index 9113b5ddc..64d1a8504 100644
--- a/profiles/audio/avctp.c
+++ b/profiles/audio/avctp.c
@@ -1177,7 +1177,7 @@ static int uinput_create(struct btd_device *device, const char *name,
 	memset(&dev, 0, sizeof(dev));
 
 	if (name) {
-		strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE);
+		strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE - 1);
 		dev.name[UINPUT_MAX_NAME_SIZE - 1] = '\0';
 	}
 
diff --git a/profiles/network/bnep.c b/profiles/network/bnep.c
index f94f1da8a..54b950058 100644
--- a/profiles/network/bnep.c
+++ b/profiles/network/bnep.c
@@ -108,7 +108,7 @@ static int bnep_connadd(int sk, uint16_t role, char *dev)
 	struct bnep_connadd_req req;
 
 	memset(&req, 0, sizeof(req));
-	strncpy(req.device, dev, 16);
+	strncpy(req.device, dev, 15);
 	req.device[15] = '\0';
 
 	req.sock = sk;
@@ -345,7 +345,7 @@ struct bnep *bnep_new(int sk, uint16_t local_role, uint16_t remote_role,
 	session->io = g_io_channel_unix_new(dup_fd);
 	session->src = local_role;
 	session->dst = remote_role;
-	strncpy(session->iface, iface, 16);
+	strncpy(session->iface, iface, 15);
 	session->iface[15] = '\0';
 
 	g_io_channel_set_close_on_unref(session->io, TRUE);
diff --git a/src/shared/gatt-server.c b/src/shared/gatt-server.c
index 9beec44be..776e5ce2b 100644
--- a/src/shared/gatt-server.c
+++ b/src/shared/gatt-server.c
@@ -1119,8 +1119,6 @@ static void read_multiple_cb(struct bt_att_chan *chan, uint8_t opcode,
 	}
 
 	data = read_mult_data_new(server, chan, opcode, length / 2);
-	if (!data)
-		goto error;
 
 	for (i = 0; i < data->num_handles; i++)
 		data->handles[i] = get_le16(pdu + i * 2);
diff --git a/tools/mesh-gatt/util.c b/tools/mesh-gatt/util.c
index e845c4112..eb8b8eb29 100644
--- a/tools/mesh-gatt/util.c
+++ b/tools/mesh-gatt/util.c
@@ -41,9 +41,14 @@ void print_byte_array(const char *prefix, const void *ptr, int len)
 	char *line, *bytes;
 	int i;
 
-	line = g_malloc(strlen(prefix) + (16 * 3) + 2);
-	sprintf(line, "%s ", prefix);
-	bytes = line + strlen(prefix) + 1;
+	if (prefix) {
+		line = g_malloc(strlen(prefix) + (16 * 3) + 2);
+		sprintf(line, "%s ", prefix);
+		bytes = line + strlen(prefix) + 1;
+	} else {
+		line = g_malloc((16 * 3) + 2);
+		bytes = line + 1;
+	}
 
 	for (i = 0; i < len; ++i) {
 		sprintf(bytes, "%2.2x ", data[i]);
diff --git a/tools/test-runner.c b/tools/test-runner.c
index eac120f4a..71cc0d2df 100644
--- a/tools/test-runner.c
+++ b/tools/test-runner.c
@@ -136,7 +136,7 @@ static void prepare_sandbox(void)
 {
 	int i;
 
-	for (i = 0; mount_table[i].fstype; i++) {
+	for (i = 0; mount_table[i].fstype && mount_table[i].target; i++) {
 		struct stat st;
 
 		if (lstat(mount_table[i].target, &st) < 0) {
