From 8d9a62e4def76701616a21037f7a728319be56d8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 24 Jul 2020 16:13:10 +0200 Subject: [PATCH] mt76: mt7915: fix crash on tx rate report for invalid stations Check wcid RCU pointer before using it Signed-off-by: Felix Fietkau --- mt7915/mcu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mt7915/mcu.c b/mt7915/mcu.c index 1ffb9eeb..66d73377 100644 --- a/mt7915/mcu.c +++ b/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;