[PATCH AUTOSEL 6.7 10/23] wifi: mac80211: only call drv_sta_rc_update for uploaded stations

Sasha Levin
2024-03-11T15:12:40Z

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 413dafc8170fcb925fb17af8842f06af305f8e0b ]

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>
Link: https://msgid.link/20240221140535.16102-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 d5ea5f5bcf3a0..9d33fd2377c88 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