diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d45d4be63dd8..5481acbfc1d4 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3086,10 +3086,11 @@ void ieee80211_check_fast_xmit(struct sta_info *sta) /* DA SA BSSID */ build.da_offs = offsetof(struct ieee80211_hdr, addr1); build.sa_offs = offsetof(struct ieee80211_hdr, addr2); + rcu_read_lock(); link = rcu_dereference(sdata->link[tdls_link_id]); - if (WARN_ON_ONCE(!link)) - break; - memcpy(hdr->addr3, link->u.mgd.bssid, ETH_ALEN); + if (!WARN_ON_ONCE(!link)) + memcpy(hdr->addr3, link->u.mgd.bssid, ETH_ALEN); + rcu_read_unlock(); build.hdr_len = 24; break; }