KEY_FLAG_TAINTED
if (key->flags & KEY_FLAG_TAINTED) {
old->flags |= KEY_FLAG_TAINTED;
if (!(key->flags & KEY_FLAG_TAINTED))
(key->flags & KEY_FLAG_TAINTED))
if (unlikely(rx->key->flags & KEY_FLAG_TAINTED))
if (build.key->flags & KEY_FLAG_TAINTED)
if (unlikely(tx.key->flags & KEY_FLAG_TAINTED)) {
if (unlikely(tx->key && tx->key->flags & KEY_FLAG_TAINTED &&
key->flags |= KEY_FLAG_TAINTED;