postgresql/contrib
Thomas Munro 4c08960d97 Code coverage for most pg_mblen* calls.
A security patch changed them today, so close the coverage gap now.
Test that buffer overrun is avoided when pg_mblen*() requires more
than the number of bytes remaining.

This does not cover the calls in dict_thesaurus.c or in dict_synonym.c.
That code is straightforward.  To change that code's input, one must
have access to modify installed OS files, so low-privilege users are not
a threat.  Testing this would likewise require changing installed
share/postgresql/tsearch_data, which was enough of an obstacle to not
bother.

Security: CVE-2026-2006
Backpatch-through: 14
Co-authored-by: Thomas Munro <thomas.munro@gmail.com>
Co-authored-by: Noah Misch <noah@leadboat.com>
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
2026-02-09 12:29:41 +13:00
..
adminpack Use "data directory" not "current directory" in error messages. 2023-03-16 12:04:08 -04:00
amcheck amcheck: Fix snapshot usage in bt_index_parent_check 2026-01-21 18:55:43 +01:00
auth_delay Fix copy-pasto in contrib/auth_delay/meson.build variable name. 2023-04-02 09:31:10 -07:00
auto_explain Allow resetting unknown custom GUCs with reserved prefixes. 2025-08-01 16:52:11 -05:00
basebackup_to_shell Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
basic_archive Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
bloom Count contrib/bloom index scans in pgstat view. 2024-11-12 20:57:41 -05:00
bool_plperl Update copyright for 2023 2023-01-02 15:00:37 -05:00
btree_gin btree_gin: Fix calculation of leftmost interval value. 2023-10-29 11:14:36 +00:00
btree_gist Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
citext Skip citext_utf8 test on Windows. 2024-08-02 10:03:45 +12:00
cube Rework pg_input_error_message(), now renamed pg_input_error_info() 2023-02-28 08:04:13 +09:00
dblink Avoid resource leaks when a dblink connection fails. 2025-05-29 10:39:55 -04:00
dict_int Update copyright for 2023 2023-01-02 15:00:37 -05:00
dict_xsyn Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
earthdistance contrib/earthdistance: Use SQL-standard function bodies. 2024-12-14 16:07:18 -05:00
file_fdw Fix bogus ctid requirement for dummy-root partitioned targets 2026-01-23 10:23:18 +09:00
fuzzystrmatch Ensure Soundex difference() function handles empty input sanely. 2023-05-16 10:53:42 -04:00
hstore Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
hstore_plperl Update copyright for 2023 2023-01-02 15:00:37 -05:00
hstore_plpython In hstore_plpython, avoid crashing when return value isn't a mapping. 2023-04-27 11:55:06 -04:00
intagg Update copyright for 2023 2023-01-02 15:00:37 -05:00
intarray Fix selectivity estimation integer overflow in contrib/intarray 2026-01-04 20:34:01 +13:00
isn Rework pg_input_error_message(), now renamed pg_input_error_info() 2023-02-28 08:04:13 +09:00
jsonb_plperl Update copyright for 2023 2023-01-02 15:00:37 -05:00
jsonb_plpython Update copyright for 2023 2023-01-02 15:00:37 -05:00
lo Repair incorrect handling of AfterTriggerSharedData.ats_modifiedcols. 2025-01-22 11:58:20 -05:00
ltree Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
ltree_plpython Update copyright for 2023 2023-01-02 15:00:37 -05:00
oid2name Mark options as deprecated in usage output 2023-03-02 14:36:37 +01:00
old_snapshot Update copyright for 2023 2023-01-02 15:00:37 -05:00
pageinspect Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
passwordcheck Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_buffercache Add CHECK_FOR_INTERRUPTS in contrib/pg_buffercache functions. 2025-08-19 12:11:34 -07:00
pg_freespacemap Prevent assertion failure in contrib/pg_freespacemap. 2025-03-27 13:20:23 -04:00
pg_prewarm Allow role created by new test to log in on Windows. 2025-10-18 18:36:21 -04:00
pg_stat_statements pg_stat_statements: Fix parameter number gaps in normalized queries 2025-05-29 11:26:27 +09:00
pg_surgery Remove useless casts to (void *) in arguments of some system functions 2023-02-07 06:57:59 +01:00
pg_trgm Code coverage for most pg_mblen* calls. 2026-02-09 12:29:41 +13:00
pg_visibility Restore smgrtruncate() prototype in back-branches. 2025-01-08 10:46:45 +13:00
pg_walinspect Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
pgcrypto pgcrypto: Fix buffer overflow in pgp_pub_decrypt_bytea() 2026-02-09 08:01:09 +09:00
pgrowlocks Adjust the order of the prechecks in pgrowlocks() 2023-10-31 16:42:35 +13:00
pgstattuple pgstattuple: Improve reports generated for indexes (hash, gist, btree) 2025-10-02 11:09:13 +09:00
postgres_fdw postgres_fdw: Add more test coverage for EvalPlanQual testing. 2025-11-06 12:15:03 +09:00
seg seg: Add test "security" in meson.build 2024-01-18 10:12:51 +09:00
sepgsql meson: Fix sepgsql installation 2025-01-24 10:55:24 +01:00
spi Update copyright for 2023 2023-01-02 15:00:37 -05:00
sslinfo Update copyright for 2023 2023-01-02 15:00:37 -05:00
start-scripts Remove gratuitous references to postmaster program 2023-01-26 10:48:32 +01:00
tablefunc Update copyright for 2023 2023-01-02 15:00:37 -05:00
tcn Update copyright for 2023 2023-01-02 15:00:37 -05:00
test_decoding Fix re-distributing previously distributed invalidation messages during logical decoding. 2025-06-16 17:35:55 -07:00
tsm_system_rows Update copyright for 2023 2023-01-02 15:00:37 -05:00
tsm_system_time Update copyright for 2023 2023-01-02 15:00:37 -05:00
unaccent Replace pg_mblen() with bounds-checked versions. 2026-02-09 12:29:15 +13:00
uuid-ossp New header varatt.h split off from postgres.h 2023-01-10 05:54:36 +01:00
vacuumlo Update copyright for 2023 2023-01-02 15:00:37 -05:00
xml2 Fix incompatibility with libxml2 >= 2.14 2025-07-07 08:54:39 +09:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00
Makefile Revert "Rename contrib module basic_archive to basic_wal_module" 2023-01-26 09:13:39 +09:00
meson.build Revert "Rename contrib module basic_archive to basic_wal_module" 2023-01-26 09:13:39 +09:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00

The PostgreSQL contrib tree
---------------------------

This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree.  This does not preclude their
usefulness.

User documentation for each module appears in the main SGML
documentation.

When building from the source distribution, these modules are not
built automatically, unless you build the "world" target.  You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.

Some directories supply new user-defined functions, operators, or
types.  To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command.  In a fresh database,
you can simply do

    CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this
procedure.