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Coverity points out that mdc_finish returns a pointer to a local buffer (which of course is gone as soon as the function returns), leaving open a risk of misbehaviors possibly as bad as a stack overwrite. In reality, the only possible call site is in process_data_packets() which does not examine the returned pointer at all. So there's no live bug, but nonetheless the code is confusing and risky. Refactor to avoid the issue by letting process_data_packets() call mdc_finish() directly instead of going through the pullf_read() API. Although this is only cosmetic, it seems good to back-patch so that the logic in pgp-decrypt.c stays in sync across all branches. Marko Kreen |
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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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.