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wifi: mt76: mt7915: check the correctness of event data

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The mcu event might not be reliable, so check the correctness of data
before handling it.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee
2022-12-04 05:33:19 +08:00
committed by Felix Fietkau
parent 783ef7da7a
commit 7a53eecd5c
1 changed files with 17 additions and 4 deletions
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21
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
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@@ -232,8 +232,11 @@ mt7915_mcu_rx_csa_notify(struct mt7915_dev *dev, struct sk_buff *skb)
c = (struct mt7915_mcu_csa_notify *)skb->data;
if (c->band_idx > MT_BAND1)
return;
if ((c->band_idx && !dev->phy.mt76->band_idx) &&
dev->mt76.phys[MT_BAND1])
dev->mt76.phys[MT_BAND1])
mphy = dev->mt76.phys[MT_BAND1];
ieee80211_iterate_active_interfaces_atomic(mphy->hw,
@@ -252,8 +255,11 @@ mt7915_mcu_rx_thermal_notify(struct mt7915_dev *dev, struct sk_buff *skb)
if (t->ctrl.ctrl_id != THERMAL_PROTECT_ENABLE)
return;
if (t->ctrl.band_idx > MT_BAND1)
return;
if ((t->ctrl.band_idx && !dev->phy.mt76->band_idx) &&
dev->mt76.phys[MT_BAND1])
dev->mt76.phys[MT_BAND1])
mphy = dev->mt76.phys[MT_BAND1];
phy = (struct mt7915_phy *)mphy->priv;
@@ -268,8 +274,11 @@ mt7915_mcu_rx_radar_detected(struct mt7915_dev *dev, struct sk_buff *skb)
r = (struct mt7915_mcu_rdd_report *)skb->data;
if (r->band_idx > MT_BAND1)
return;
if ((r->band_idx && !dev->phy.mt76->band_idx) &&
dev->mt76.phys[MT_BAND1])
dev->mt76.phys[MT_BAND1])
mphy = dev->mt76.phys[MT_BAND1];
if (r->band_idx == MT_RX_SEL2)
@@ -326,7 +335,11 @@ mt7915_mcu_rx_bcc_notify(struct mt7915_dev *dev, struct sk_buff *skb)
b = (struct mt7915_mcu_bcc_notify *)skb->data;
if ((b->band_idx && !dev->phy.mt76->band_idx) && dev->mt76.phys[MT_BAND1])
if (b->band_idx > MT_BAND1)
return;
if ((b->band_idx && !dev->phy.mt76->band_idx) &&
dev->mt76.phys[MT_BAND1])
mphy = dev->mt76.phys[MT_BAND1];
ieee80211_iterate_active_interfaces_atomic(mphy->hw,