git.openwrt.org Git - openwrt/staging/ansuel.git/blob

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 21 Feb 2024 14:41:40 +0100
   3 Subject: [PATCH] wifi: mac80211: only call drv_sta_rc_update for uploaded
   4  stations
   5
   6 When a station has not been uploaded yet, receiving SMPS or channel width
   7 notification action frames can lead to rate_control_rate_update calling
   8 drv_sta_rc_update with uninitialized driver private data.
   9 Fix this by adding a missing check for sta->uploaded.
  10
  11 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  12 ---
  13
  14 --- a/net/mac80211/rate.c
  15 +++ b/net/mac80211/rate.c
  16 @@ -119,7 +119,8 @@ void rate_control_rate_update(struct iee
  17                 rcu_read_unlock();
  18         }
  19
  20 -       drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
  21 +       if (sta->uploaded)
  22 +               drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
  23  }
  24
  25  int ieee80211_rate_control_register(const struct rate_control_ops *ops)