mac80211: off by one in mcs mask handling
"ridx" is used as an index into the mcs_mask[] array which has
IEEE80211_HT_MCS_MASK_LEN elements.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 3fef26d..22fc28e 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -324,7 +324,7 @@
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. */