63cb15f40c
Tied arrays might report different sizes each time they are inspected. To avoid generating a corrupt result array, fix plperl_array_to_datum() to read av_len() of each input array only once. If the input does appear to get shorter, we'll fill nulls for the now-missing entries, which seems fine. Conversely, if it gets longer, we'll ignore the new entries. plperl_to_hstore() assumed that Perl's hv_iterinit() returns the number of entries in the given Perl hash. Usually that's true, but per the Perl docs, "the return value is currently only meaningful for hashes without tie magic". That could potentially end in a memory stomp. We don't depend on that result value anywhere else, so don't do so here either. Reported-by: Hcamael <baiyjrh@gmail.com> Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Andrew Dunstan <andrew@dunslane.net> Backpatch-through: 14 Security: CVE-2026-14670
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/.