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wifi: mt76: mt7996: fix insecure data handling of mt7996_mcu_rx_radar_detected()

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Coverity message:
using tainted "r->band_idx" variable as an index into an array "(*dev).mt76.phys".

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1527812 ("Insecure data handling")
Fixes: 98686cd216 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee
2022-12-03 11:22:24 +08:00
committed by Felix Fietkau
parent 5202b983f9
commit f37c6e5c75
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
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@@ -335,6 +335,9 @@ mt7996_mcu_rx_radar_detected(struct mt7996_dev *dev, struct sk_buff *skb)
r = (struct mt7996_mcu_rdd_report *)skb->data;
if (r->band_idx >= ARRAY_SIZE(dev->mt76.phys))
return;
mphy = dev->mt76.phys[r->band_idx];
if (!mphy)
return;