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Commitb8ba7344e9added in PQgetResult a derefence to a pointer returned by pqPrepareAsyncResult(), before some other code that was already testing that pointer for nullness. But since commit618c16707a(in Postgres 15), pqPrepareAsyncResult() doesn't ever return NULL (a statically-allocated result is returned if OOM). So in branches 15 and up, we can remove the redundant pointer check with no harm done. However, in branch 14, pqPrepareAsyncResult() can indeed return NULL if it runs out of memory. Fix things there by adding a null pointer check before dereferencing the pointer. This should hint Coverity that the preexisting check is not redundant but necessary. Backpatch to 14, likeb8ba7344e9. Per Coverity.
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. Copyright and license information can be found in the file COPYRIGHT. General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.