From: | Zu-Ming Jiang <zuming(dot)jiang(at)inf(dot)ethz(dot)ch> |
---|---|
To: | <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
Subject: | Fwd: Server closed the connection unexpectedly (memory leak) |
Date: | 2023-06-23 16:20:56 |
Message-ID: | bc25534f-5fdf-60db-564d-a4792146ce6e@inf.ethz.ch |
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Thread: | |
Lists: | pgsql-bugs |
Sorry that the test cases is a bit large. It is difficult for me to
reduce it to the minimal, because when I removed some parts, the bug
easily disappears.
Best wishes,
Zuming Jiang
------------------------------------------------------------------------
*From:* Zu-Ming Jiang [mailto:zuming(dot)jiang(at)inf(dot)ethz(dot)ch]
*Sent:* Friday, June 23, 2023 at 6:06 PM
*To:* pgsql-bugs(at)lists(dot)postgresql(dot)org
*Subject:* Server closed the connection unexpectedly (memory leak)
My fuzzer finds a bug in Postgres, which makes the connection closed
unexpectedly. This bug still can be reproduced even after applying the
patch for
https://www.postgresql.org/message-id/flat/b2bd02dff61af15e3526293e2771f874cf2a3be7(dot)camel(at)cybertec(dot)at
--- Steps to reproduce the bug ---
1. /usr/local/pgsql/bin/psql -d postgres -c "drop database redb";
2. /usr/local/pgsql/bin/psql -d postgres -c "create database redb";
3. /usr/local/pgsql/bin/psql -d redb -f pg_testdb55_bk.sql;
4. /usr/local/pgsql/bin/psql -d redb -f unexpected.sql
pg_testdb55_bk.sql and unexpected.sql are attached.
--- Expected behavior ---
No error triggered.
--- Actual behavior ---
The test case makes the connection closed unexpectedly:
psql:unexpected.sql:695: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
psql:unexpected.sql:695: error: connection to server was lost
--- Postgres version ---
Github commit: f5c446e3367527f9db1506d7c38d2f56e20950b6
Version: PostgreSQL 16beta1 on x86_64-pc-linux-gnu, compiled by gcc
(Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0, 64-bit
--- Platform information ---
Platform: Ubuntu 20.04
Kernel: Linux 5.4.0-147-generic
Attachment | Content-Type | Size |
---|---|---|
pg_testdb55_bk.sql | text/plain | 13.4 KB |
unexpected.sql | text/plain | 33.9 KB |
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