On Sat, 2021-07-31 at 08:55 -0700, Kees Cook wrote: > > > @@ -278,9 +278,7 @@ static void carl9170_tx_release(struct kref *ref) > > BUILD_BUG_ON( > > offsetof(struct ieee80211_tx_info, status.ack_signal) != 20); > > > > > > - memset(&txinfo->status.ack_signal, 0, > > - sizeof(struct ieee80211_tx_info) - > > - offsetof(struct ieee80211_tx_info, status.ack_signal)); > > + memset_after(&txinfo->status, 0, rates); FWIW, I think we should also remove the BUILD_BUG_ON() now in all the places - that was meant to give people a hint to update if some field ordering etc. changed, but now that it's "after rates" this is no longer necessary. johannes