6a985e71e9
A few functions in this file were incautious about multiplying a possibly large integer by a factor more than 1 and then using it as an allocation size. This is harmless on 64-bit systems where we'd compute a size exceeding MaxAllocSize and then fail, but on 32-bit systems we could overflow size_t, leading to an undersized allocation and buffer overrun. To fix, use palloc_array() or mul_size() instead of handwritten multiplication. Reported-by: Sven Klemm <sven@tigerdata.com> Reported-by: Xint Code Author: Nathan Bossart <nathandbossart@gmail.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Tatsuo Ishii <ishii@postgresql.org> Security: CVE-2026-6473 Backpatch-through: 14
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/.