From: Roel K. <roe...@gm...> - 2009-07-25 21:46:17
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channel_index loops up to IPW_SCAN_CHANNELS, but is used after being incremented. This might be able to access 1 past the end of the array Signed-off-by: Roel Kluin <roe...@gm...> --- diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 44c29b3..d1c9d6d 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -6249,7 +6249,10 @@ static void ipw_add_scan_channels(struct ipw_priv *priv, channels[channel - 1] = 1; priv->speed_scan_pos++; - channel_index++; + + if (++channel_index >= IPW_SCAN_CHANNELS) + break; + scan->channels_list[channel_index] = channel; index = ieee80211_channel_to_index(priv->ieee, channel); |