1 files changed, 6 insertions, 0 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 0c0be9097664..0aa9675319ef 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -418,8 +418,10 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
                 return ret;
         }
 
+        mutex_lock(&local->mtx);
         ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef,
                                         IEEE80211_CHANCTX_EXCLUSIVE);
+        mutex_unlock(&local->mtx);
         if (ret) {
                 drv_remove_interface(local, sdata);
                 kfree(sdata);
@@ -456,7 +458,9 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
 
         synchronize_net();
 
+        mutex_lock(&local->mtx);
         ieee80211_vif_release_channel(sdata);
+        mutex_unlock(&local->mtx);
 
         drv_remove_interface(local, sdata);
 
@@ -826,7 +830,9 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
         if (sdata->wdev.cac_started) {
                 chandef = sdata->vif.bss_conf.chandef;
                 WARN_ON(local->suspended);
+                mutex_lock(&local->mtx);
                 ieee80211_vif_release_channel(sdata);
+                mutex_unlock(&local->mtx);
                 cfg80211_cac_event(sdata->dev, &chandef,
                                    NL80211_RADAR_CAC_ABORTED,
                                    GFP_KERNEL);