3.5.7.11 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Stone Piao <[email protected]>

commit 901ceba4e81e9dd6b4a3c4c37ee22000a6c5c65f upstream.

Limit the channel number in scan request, or the driver scan
config structure memory will be overflowed.

Signed-off-by: Stone Piao <[email protected]>
Signed-off-by: Bing Zhao <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Luis Henriques <[email protected]>
---
 drivers/net/wireless/mwifiex/cfg80211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c 
b/drivers/net/wireless/mwifiex/cfg80211.c
index 76b5c0f..4506cda 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1368,7 +1368,8 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy, struct 
net_device *dev,
                }
        }
 
-       for (i = 0; i < request->n_channels; i++) {
+       for (i = 0; i < min_t(u32, request->n_channels,
+                             MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
                chan = request->channels[i];
                priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
                priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
-- 
1.8.1.2

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