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| author | Felix Fietkau <nbd@nbd.name> | 2023-04-14 14:10:54 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2023-04-17 15:39:05 +0200 |
| commit | 5b8ccdfb943f6a03c676d2ea816dd38c149e920b (patch) | |
| tree | 09f857888b4b3ae9e2260fc22ddf009e6300e956 /drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | |
| parent | 9e47dd9f64a47ae00ca0123017584c37209ee900 (diff) | |
| download | linux-stable-5b8ccdfb943f6a03c676d2ea816dd38c149e920b.tar.gz linux-stable-5b8ccdfb943f6a03c676d2ea816dd38c149e920b.tar.bz2 linux-stable-5b8ccdfb943f6a03c676d2ea816dd38c149e920b.zip | |
wifi: mt76: add missing locking to protect against concurrent rx/status calls
According to the documentation, ieee80211_rx_list must not run concurrently
with ieee80211_tx_status (or its variants).
Cc: stable@vger.kernel.org
Fixes: 88046b2c9f6d ("mt76: add support for reporting tx status with skb")
Reported-by: Brian Coverstone <brian@mainsequence.net>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index d3f74473e6fb..3e41d809ade3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -631,8 +631,11 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev, mt76_tx_status_unlock(mdev, &list); - if (!status.skb) + if (!status.skb) { + spin_lock_bh(&dev->mt76.rx_lock); ieee80211_tx_status_ext(mt76_hw(dev), &status); + spin_unlock_bh(&dev->mt76.rx_lock); + } if (!len) goto out; |