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
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cleanup.out	Refactor tests of pg_stat_statements for planning, utility and level tracking	2023-02-20 09:28:29 +09:00
cursors.out	Show sizes of FETCH queries as constants in pg_stat_statements	2025-07-02 08:39:25 +09:00
dml.out	Remove the query_id_squash_values GUC	2025-03-27 13:33:37 +01:00
entry_timestamp.out	Track statement entry timestamp in contrib/pg_stat_statements	2023-11-27 02:52:17 +02:00
extended.out	Make query jumbling also squash PARAM_EXTERN params	2025-06-24 19:36:32 +02:00
level_tracking.out	plpgsql: optimize "SELECT simple-expression INTO var".	2026-03-20 18:23:45 -04:00
oldextversions.out	pg_stat_statements: Add counters for generic and custom plans	2025-07-31 11:37:37 +09:00
parallel.out	pg_stat_statements: Add columns to track parallel worker activity	2024-10-09 08:30:45 +09:00
plancache.out	pg_stat_statements: Fix potential use-after-free of PlannedStmt	2026-05-12 13:36:38 +09:00
planning.out	Revert support for improved tracking of nested queries	2025-06-12 10:08:55 +09:00
privileges.out	pg_stat_statements: Add regression test for privilege handling.	2024-07-24 20:54:51 +09:00
select.out	Fix query jumbling with GROUP BY clauses	2026-01-14 08:44:12 +09:00
squashing.out	pg_stat_statements: Rework test order	2026-01-21 07:47:38 +09:00
user_activity.out	Add NOT NULL checking of pg_stat_statements_reset() in tests	2023-11-27 02:52:17 +02:00
utility.out	Show sizes of FETCH queries as constants in pg_stat_statements	2025-07-02 08:39:25 +09:00
wal.out	Show values of SET statements as constants in pg_stat_statements	2024-09-30 14:02:00 +09:00