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wlan-ng: add a bounds check 

I'm not sure where these results come from, but it can't hurt to
add a sanity check the array offset.  The .results[] array on the
next line has HFA384x_CHINFORESULT_MAX (16) elements.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2013-02-27 08:13:45 +03:00 committed by Greg Kroah-Hartman
parent a0cdd2e4a9
commit 72c1c06d91
1 changed files with 3 additions and 0 deletions
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3
drivers/staging/wlan-ng/prism2sta.c
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@ -1170,6 +1170,9 @@ static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
result = &inf->info.chinforesult.result[n];
chan = le16_to_cpu(result->chid) - 1;
if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
continue;
chinforesult = &hw->channel_info.results.result[chan];
chinforesult->chid = chan;
chinforesult->anl = le16_to_cpu(result->anl);