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mt76: fix possible out-of-bound access in mt7615_fill_txs/mt7603_fill_txs

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[ Upstream commit e8b970c8e367e85fab9b8ac4f36080e5d653c38e ]

Fix possible out-of-bound access of status rates array in
mt7615_fill_txs/mt7603_fill_txs routines

Fixes: c5211e997e ("mt76: mt7603: rework and fix tx status reporting")
Fixes: 4af81f02b4 ("mt76: mt7615: sync with mt7603 rate control changes")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lorenzo Bianconi 2019-11-07 01:01:58 +02:00 • committed by Greg Kroah-Hartman
commit 44a9b673a7
2 changed files with 6 additions and 2 deletions
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4
drivers/net/wireless/mediatek/mt76/mt7603/mac.c
View file

@ -1032,8 +1032,10 @@ mt7603_fill_txs(struct mt7603_dev *dev, struct mt7603_sta *sta,
if (idx && (cur_rate->idx != info->status.rates[i].idx ||
cur_rate->flags != info->status.rates[i].flags)) {
i++;
if (i == ARRAY_SIZE(info->status.rates))
if (i == ARRAY_SIZE(info->status.rates)) {
i--;
break;
}
info->status.rates[i] = *cur_rate;
info->status.rates[i].count = 0;

4
drivers/net/wireless/mediatek/mt76/mt7615/mac.c
View file

@ -914,8 +914,10 @@ static bool mt7615_fill_txs(struct mt7615_dev *dev, struct mt7615_sta *sta,
if (idx && (cur_rate->idx != info->status.rates[i].idx ||
cur_rate->flags != info->status.rates[i].flags)) {
i++;
if (i == ARRAY_SIZE(info->status.rates))
if (i == ARRAY_SIZE(info->status.rates)) {
i--;
break;
}
info->status.rates[i] = *cur_rate;
info->status.rates[i].count = 0;