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rtl8188eu: Remove additional arrays from the stack in translate_scan()

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Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
This commit is contained in:
Larry Finger 2016-01-21 20:16:15 -06:00
parent 596818fee3
commit 379691b761
1 changed files with 20 additions and 2 deletions
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22
os_dep/ioctl_linux.c
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@ -352,11 +352,25 @@ static char *translate_scan(struct adapter *padapter,
/* parsing WPA/WPA2 IE */ /* parsing WPA/WPA2 IE */
{ {
u8 buf[MAX_WPA_IE_LEN]; u8 *buf;
u8 wpa_ie[255], rsn_ie[255]; u8 *wpa_ie, *rsn_ie;
u16 wpa_len = 0, rsn_len = 0; u16 wpa_len = 0, rsn_len = 0;
u8 *p; u8 *p;
buf = kzalloc(MAX_WPA_IE_LEN, GFP_ATOMIC);
if (!buf)
goto exit;
wpa_ie = kzalloc(255, GFP_ATOMIC);
if (!wpa_ie) {
kfree(buf);
goto exit;
}
rsn_ie = kzalloc(255, GFP_ATOMIC);
if (!rsn_ie) {
kfree(buf);
kfree(wpa_ie);
goto exit;
}
rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, rsn_ie, &rsn_len, wpa_ie, &wpa_len); rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, 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: 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)); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_wx_get_scan: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
@ -394,6 +408,9 @@ static char *translate_scan(struct adapter *padapter,
iwe.u.data.length = rsn_len; iwe.u.data.length = rsn_len;
start = iwe_stream_add_point(info, start, stop, &iwe, rsn_ie); start = iwe_stream_add_point(info, start, stop, &iwe, rsn_ie);
} }
kfree(buf);
kfree(wpa_ie);
kfree(rsn_ie);
} }
{/* parsing WPS IE */ {/* parsing WPS IE */
@ -432,6 +449,7 @@ static char *translate_scan(struct adapter *padapter,
iwe.u.qual.qual = (u8)sq; /* signal quality */ iwe.u.qual.qual = (u8)sq; /* signal quality */
iwe.u.qual.noise = 0; /* noise level */ iwe.u.qual.noise = 0; /* noise level */
start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN); start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
exit:
kfree(custom); kfree(custom);
return start; return start;
} }