diff --git a/src/resolve/resolved-dns-transaction.c b/src/resolve/resolved-dns-transaction.c index 17a815cd44..f78bf0702b 100644 --- a/src/resolve/resolved-dns-transaction.c +++ b/src/resolve/resolved-dns-transaction.c @@ -840,10 +840,8 @@ static void dns_transaction_cache_answer(DnsTransaction *t) { dns_transaction_key(t), t->answer_rcode, t->answer, - DNS_PACKET_CD(t->received) ? t->received : NULL, /* only cache full packets with CD on, - * since our use case for caching them - * is "bypass" mode which is only - * enabled for CD packets. */ + /* If neither DO nor EDE is set, the full packet isn't useful to cache */ + DNS_PACKET_DO(t->received) || t->answer_ede_rcode > 0 || t->answer_ede_msg ? t->received : NULL, t->answer_query_flags, t->answer_dnssec_result, t->answer_nsec_ttl,