diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index 902ac8169948..083ff72976cf 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -1351,9 +1351,11 @@ static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
 
 					sec_len = *(pos++); len -= 1;
 
-					if (sec_len > 0 && sec_len <= len) {
+					if (sec_len > 0 &&
+					    sec_len <= len &&
+					    sec_len <= 32) {
 						ssid[ssid_index].SsidLength = sec_len;
-						memcpy(ssid[ssid_index].Ssid, pos, ssid[ssid_index].SsidLength);
+						memcpy(ssid[ssid_index].Ssid, pos, sec_len);
 						/* DBG_871X("%s COMBO_SCAN with specific ssid:%s, %d\n", __func__ */
 						/* 	, ssid[ssid_index].Ssid, ssid[ssid_index].SsidLength); */
 						ssid_index++;