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| author | Felix Fietkau <nbd@nbd.name> | 2019-10-10 21:59:46 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-11-20 13:23:50 +0100 |
| commit | bf5238b25ac373cb2a544fe8554fd66fc9e04efc (patch) | |
| tree | 0ae7b32d6fa73daee6b56201a57316092a00b68a /drivers/net/wireless/mediatek | |
| parent | 237312c5e485804417e0f809f948112c3eb7fc96 (diff) | |
| download | linux-bf5238b25ac373cb2a544fe8554fd66fc9e04efc.tar.gz linux-bf5238b25ac373cb2a544fe8554fd66fc9e04efc.tar.bz2 linux-bf5238b25ac373cb2a544fe8554fd66fc9e04efc.zip | |
mt76: add sanity check for a-mpdu rx wcid index
Avoid dereferencing invalid ids
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mac80211.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 4e6f14ca00f2..a3975e3795ee 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -644,7 +644,7 @@ mt76_airtime_flush_ampdu(struct mt76_dev *dev) return; wcid_idx = dev->rx_ampdu_status.wcid_idx; - if (dev->rx_ampdu_status.wcid_idx != 0xff) + if (wcid_idx < ARRAY_SIZE(dev->wcid)) wcid = rcu_dereference(dev->wcid[wcid_idx]); else wcid = NULL; |