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ECPGconnect() caches established connections to the server, supporting the case of a NULL connection name when a database name is not specified by its caller. A follow-up call to ECPGget_PGconn() to get an established connection from the cached set with a non-NULL name could cause a NULL pointer dereference if a NULL connection was listed in the cache and checked for a match. At least two connections are necessary to reproduce the issue: one with a NULL name and one with a non-NULL name. Author: Aleksander Alekseev <aleksander@tigerdata.com> Discussion: https://postgr.es/m/CAJ7c6TNvFTPUTZQuNAoqgzaSGz-iM4XR61D7vEj5PsQXwg2RyA@mail.gmail.com Backpatch-through: 13 |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.