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mac80211: off by one in mcs mask handling

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"ridx" is used as an index into the mcs_mask[] array which has
IEEE80211_HT_MCS_MASK_LEN elements.

Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Dan Carpenter 2012-02-01 10:42:11 +03:00 • committed by John W. Linville
commit 910570b5f4
2 changed files with 2 additions and 2 deletions
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2
net/mac80211/rate.c
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@ -324,7 +324,7 @@ static bool rate_idx_match_mcs_mask(struct ieee80211_tx_rate *rate,
rbit = rate->idx % 8;
/* sanity check */
if (ridx < 0 || ridx > IEEE80211_HT_MCS_MASK_LEN)
if (ridx < 0 || ridx >= IEEE80211_HT_MCS_MASK_LEN)
return false;
/* See whether the selected rate or anything below it is allowed. */