diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index ec5835d1aa8c..9f0418ee7528 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -229,18 +229,21 @@ static char *translate_scan(struct adapter *padapter,
 
 	/* parsing WPA/WPA2 IE */
 	{
-		u8 buf[MAX_WPA_IE_LEN];
+		u8 *buf;
 		u8 wpa_ie[255], rsn_ie[255];
 		u16 wpa_len = 0, rsn_len = 0;
 		u8 *p;
 
+		buf = kzalloc(MAX_WPA_IE_LEN, GFP_ATOMIC);
+		if (!buf)
+			return start;
+
 		rtw_get_sec_ie(pnetwork->network.ies, pnetwork->network.ie_length, rsn_ie, &rsn_len, wpa_ie, &wpa_len);
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_wx_get_scan: ssid =%s\n", pnetwork->network.ssid.ssid));
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_wx_get_scan: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
 
 		if (wpa_len > 0) {
 			p = buf;
-			memset(buf, 0, MAX_WPA_IE_LEN);
 			p += sprintf(p, "wpa_ie=");
 			for (i = 0; i < wpa_len; i++)
 				p += sprintf(p, "%02x", wpa_ie[i]);
@@ -257,7 +260,6 @@ static char *translate_scan(struct adapter *padapter,
 		}
 		if (rsn_len > 0) {
 			p = buf;
-			memset(buf, 0, MAX_WPA_IE_LEN);
 			p += sprintf(p, "rsn_ie=");
 			for (i = 0; i < rsn_len; i++)
 				p += sprintf(p, "%02x", rsn_ie[i]);
@@ -271,6 +273,7 @@ static char *translate_scan(struct adapter *padapter,
 			iwe.u.data.length = rsn_len;
 			start = iwe_stream_add_point(info, start, stop, &iwe, rsn_ie);
 		}
+		kfree(buf);
 	}
 
 	{/* parsing WPS IE */