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mwifiex: limit channel number not to overflow memory

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

Cc: <stable@vger.kernel.org> # 3.5+
Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stone Piao 2013-03-29 19:21:21 -07:00 committed by John W. Linville
parent b0bb9b392d
commit 901ceba4e8
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/mwifiex/cfg80211.c
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@ -1892,7 +1892,8 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
}
}
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;