mac80211 leaves sinfo->assoc_req_ies uninitialized, causing a random
pointer memory access in nl80211_send_station.
Instead of checking if the pointer is null, use sinfo->filled, like
the rest of the fields.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* @STATION_INFO_RX_BITRATE: @rxrate fields are filled
* @STATION_INFO_BSS_PARAM: @bss_param filled
* @STATION_INFO_CONNECTED_TIME: @connected_time filled
* @STATION_INFO_RX_BITRATE: @rxrate fields are filled
* @STATION_INFO_BSS_PARAM: @bss_param filled
* @STATION_INFO_CONNECTED_TIME: @connected_time filled
+ * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
STATION_INFO_SIGNAL_AVG = 1<<13,
STATION_INFO_RX_BITRATE = 1<<14,
STATION_INFO_BSS_PARAM = 1<<15,
STATION_INFO_SIGNAL_AVG = 1<<13,
STATION_INFO_RX_BITRATE = 1<<14,
STATION_INFO_BSS_PARAM = 1<<15,
- STATION_INFO_CONNECTED_TIME = 1<<16
+ STATION_INFO_CONNECTED_TIME = 1<<16,
+ STATION_INFO_ASSOC_REQ_IES = 1<<17
}
nla_nest_end(msg, sinfoattr);
}
nla_nest_end(msg, sinfoattr);
- if (sinfo->assoc_req_ies)
+ if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
sinfo->assoc_req_ies);
NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
sinfo->assoc_req_ies);