upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-05-26 03:11:44 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
Base de données relationnelle
64274 commits 38 branches 684 tags 871 MiB
C 84.4%
PLpgSQL 6.2%
Perl 5%
Yacc 1.2%
Meson 0.7%
Other 2.4%
Find a file
Michael Paquier 8268e41aca pg_stat_statements: Fix potential use-after-free of PlannedStmt 
pgss_ProcessUtility() included a reference to a portion of a PlannedStmt
after the point where this data's structure could have been freed,
causing an incorrect memory access.  There was a comment documenting
this requirement, missed in 3357471cf9.

This commit includes a test able to make valgrind complain with a
PlannedStmt freed by an internal ROLLBACK query.  Similarly to what is
mentioned in 495e73c207, this can be triggered by using the extended
query protocol, something that can be now tested thanks to the recent
meta-command additions in psql.  This commit mentions potential other
cases, but as far as I can see the extended protocol case with an
internal ROLLBACK is the only problematic pattern reachable in practice.

Issue introduced by 3357471cf9, gone unnoticed due to a lack of test
coverage.  The fix is authored by Chao, my contribution being the new
test.

Author: Chao Li <li.evan.chao@gmail.com>
Co-authored-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/2F91906A-F2B5-4A6B-9695-D136957D4545@gmail.com
2026-05-12 13:36:38 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Update config.guess and config.sub 2026-04-09 11:26:14 +02:00
contrib pg_stat_statements: Fix potential use-after-free of PlannedStmt 2026-05-12 13:36:38 +09:00
doc doc PG 19 relnotes: adjustments/removal of items 2026-05-11 17:43:15 -04:00
src Fix REPACK with WITHOUT OVERLAPS replica identity indexes 2026-05-11 18:17:46 +02:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add a couple of commits to .git-blame-ignore-revs. 2026-04-08 13:41:22 -05:00
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Add errdetail() with PID and UID about source of termination signal. 2026-04-07 10:22:33 -04:00
configure.ac Add errdetail() with PID and UID about source of termination signal. 2026-04-07 10:22:33 -04:00
COPYRIGHT Update copyright for 2026 2026-01-01 13:24:10 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Meson: Fix check_header() for readline and gssapi 2026-04-20 12:36:14 +09:00
meson_options.txt Revert "Add built-in fuzzing harnesses for security testing." 2026-04-10 09:53:58 -04:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

README.md

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/.