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1. The memcpy()s in InjectionPointAttach() would copy garbage from beyond the end of input string to the buffer in shared memory. You won't usually notice, but if there is not enough valid mapped memory beyond the end of the string, the read of unmapped memory will segfault. This was flagged by the Cirrus CI build with address sanitizer enabled. 2. The memcpy() in injection_point_cache_add() failed to copy the NULL terminator. Discussion: https://www.postgresql.org/message-id/0615a424-b726-4157-afa7-4245629f9512%40iki.fi
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/.