| Message ID | 20200805093235.52506-1-nbd@nbd.name (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Felix Fietkau |
| Headers | show |
| Series | [1/2] mt76: mt7915: fix crash on tx rate report for invalid stations | expand |
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 01fa9ca31d0e..949a387e8f93 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -522,6 +522,9 @@ mt7915_mcu_tx_rate_report(struct mt7915_dev *dev, struct sk_buff *skb) return; wcid = rcu_dereference(dev->mt76.wcid[wcidx]); + if (!wcid) + return; + msta = container_of(wcid, struct mt7915_sta, wcid); stats = &msta->stats;
Check wcid RCU pointer before using it Signed-off-by: Felix Fietkau <nbd@nbd.name> --- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 3 +++ 1 file changed, 3 insertions(+)