On Wed, 2021-09-15 at 19:54 -0700, Aloka Dixit wrote: > > diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c > index 23fa0bb49be2..88fbed46e1bc 100644 > --- a/net/mac80211/cfg.c > +++ b/net/mac80211/cfg.c > @@ -3271,8 +3271,19 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif) > { > struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); > > > > > - ieee80211_queue_work(&sdata->local->hw, > - &sdata->csa_finalize_work); > + if (vif->mbssid_tx_vif == vif) { > + struct ieee80211_sub_if_data *child, *tmp; > + > + list_for_each_entry_safe(child, tmp, > + &sdata->local->interfaces, list) I don't see any reason to believe that this list iteration should be safe? johannes