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Fix a crash bug when serving microdescs on a bufferevent.
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@ -3457,7 +3457,7 @@ connection_dirserv_add_microdescs_to_outbuf(dir_connection_t *conn)
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{
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microdesc_cache_t *cache = get_microdesc_cache();
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while (smartlist_len(conn->fingerprint_stack) &&
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buf_datalen(conn->_base.outbuf) < DIRSERV_BUFFER_MIN) {
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connection_get_outbuf_len(TO_CONN(conn)) < DIRSERV_BUFFER_MIN) {
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char *fp256 = smartlist_pop_last(conn->fingerprint_stack);
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microdesc_t *md = microdesc_cache_lookup_by_digest256(cache, fp256);
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tor_free(fp256);
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