Tom Lane 2d33cf7b8b Be more wary of corrupt data in pageinspect's heap_page_items(). ... The original intent in heap_page_items() was to return nulls, not throw an error or crash, if an item was sufficiently corrupt that we couldn't safely extract data from it. However, commit d6061f83a utterly missed that memo, and not only put in an un-length-checked copy of the tuple's data section, but also managed to break the check on sane nulls-bitmap length. Either mistake could possibly lead to a SIGSEGV crash if the tuple is corrupt. Bug: #18896 Reported-by: Dmitry Kovalenko <d.kovalenko@postgrespro.ru> Author: Dmitry Kovalenko <d.kovalenko@postgrespro.ru> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/18896-add267b8e06663e3@postgresql.org Backpatch-through: 13		2025-04-19 16:37:42 -04:00
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expected	Fix contrib/pageinspect's test for sequences.	2024-09-13 10:16:40 -05:00
sql	Fix contrib/pageinspect's test for sequences.	2024-09-13 10:16:40 -05:00
.gitignore	pageinspect: Add tests	2016-11-01 14:02:16 -04:00
brinfuncs.c	Show empty BRIN ranges in brin_page_items	2023-05-19 02:00:21 +02:00
btreefuncs.c	Consolidate ItemPointer to Datum conversion functions	2023-02-13 09:57:15 +01:00
fsmfuncs.c	Update copyright for 2023	2023-01-02 15:00:37 -05:00
ginfuncs.c	Consolidate ItemPointer to Datum conversion functions	2023-02-13 09:57:15 +01:00
gistfuncs.c	pageinspect: Fix gist_page_items() with included columns	2023-05-19 12:37:58 +09:00
hashfuncs.c	pageinspect: Fix failure with hash_bitmap_info() for partitioned indexes	2023-12-19 18:19:15 +09:00
heapfuncs.c	Be more wary of corrupt data in pageinspect's heap_page_items().	2025-04-19 16:37:42 -04:00
Makefile	Add bt_multi_page_stats() function to contrib/pageinspect.	2023-01-02 13:02:29 -05:00
meson.build	Update copyright for 2023	2023-01-02 15:00:37 -05:00
pageinspect--1.0--1.1.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	2014-08-25 18:30:37 +02:00
pageinspect--1.1--1.2.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	2014-08-25 18:30:37 +02:00
pageinspect--1.2--1.3.sql	pageinspect/BRIN: minor tweaks	2014-12-02 12:20:50 -03:00
pageinspect--1.3--1.4.sql	Add forgotten file in commit d6061f83a1	2015-11-25 16:59:07 +03:00
pageinspect--1.4--1.5.sql	Update pageinspect extension for parallel query.	2016-06-09 17:18:09 -04:00
pageinspect--1.5--1.6.sql	pageinspect: Add bt_page_items function with bytea argument	2017-04-04 23:52:55 -04:00
pageinspect--1.5.sql	Update pageinspect extension for parallel query.	2016-06-09 17:18:09 -04:00
pageinspect--1.6--1.7.sql	Skip full index scan during cleanup of B-tree indexes when possible	2018-04-04 19:29:00 +03:00
pageinspect--1.7--1.8.sql	pageinspect: Fix types used for bt_metap() columns.	2020-03-07 16:44:53 -08:00
pageinspect--1.8--1.9.sql	Use full 64-bit XIDs in deleted nbtree pages.	2021-02-24 18:41:34 -08:00
pageinspect--1.9--1.10.sql	pageinspect: Improve page_header() for pages of 32kB	2021-07-12 11:05:27 +09:00
pageinspect--1.10--1.11.sql	Mark pageinspect's disk-accessing functions as parallel restricted.	2022-11-21 15:37:10 -05:00
pageinspect--1.11--1.12.sql	Show empty BRIN ranges in brin_page_items	2023-05-19 02:00:21 +02:00
pageinspect.control	Add bt_multi_page_stats() function to contrib/pageinspect.	2023-01-02 13:02:29 -05:00
pageinspect.h	Update copyright for 2023	2023-01-02 15:00:37 -05:00
rawpage.c	Update copyright for 2023	2023-01-02 15:00:37 -05:00