From: Felix Fietkau <nbd@nbd.name>
To: linux-wireless@vger.kernel.org
Cc: johannes@sipsolutions.net
Subject: [PATCH wireless] wifi: mac80211: only call drv_sta_rc_update for uploaded stations
Date: Wed, 21 Feb 2024 15:05:35 +0100 [thread overview]
Message-ID: <20240221140535.16102-1-nbd@nbd.name> (raw)
When a station has not been uploaded yet, receiving SMPS or channel width
notification action frames can lead to rate_control_rate_update calling
drv_sta_rc_update with uninitialized driver private data.
Fix this by adding a missing check for sta->uploaded.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/mac80211/rate.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index d5ea5f5bcf3a..9d33fd2377c8 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -119,7 +119,8 @@ void rate_control_rate_update(struct ieee80211_local *local,
rcu_read_unlock();
}
- drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
+ if (sta->uploaded)
+ drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
}
int ieee80211_rate_control_register(const struct rate_control_ops *ops)
--
2.43.0
reply other threads:[~2024-02-21 14:05 UTC|newest]
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