Tom Lane ecb8e56412 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

..

expected

Detect version mismatch in brin_page_items

2024-12-17 17:50:13 +01:00

sql

Detect version mismatch in brin_page_items

2024-12-17 17:50:13 +01:00

.gitignore

pageinspect: Add tests

2016-11-01 14:02:16 -04:00

brinfuncs.c

Detect version mismatch in brin_page_items

2024-12-17 17:50:13 +01:00

btreefuncs.c

Consolidate ItemPointer to Datum conversion functions

2023-02-13 09:57:15 +01:00

fsmfuncs.c

Update copyright for 2024

2024-01-03 20:49:05 -05:00

ginfuncs.c

Update copyright for 2024

2024-01-03 20:49:05 -05:00

gistfuncs.c

Make the order of the header file includes consistent

2024-03-13 15:07:00 +01:00

hashfuncs.c

Update copyright for 2024

2024-01-03 20:49:05 -05:00

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 2024

2024-01-03 20:49:05 -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 d6061f83a166b015657fda8623c704fcb86930e9

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 2024

2024-01-03 20:49:05 -05:00

rawpage.c

Update copyright for 2024

2024-01-03 20:49:05 -05:00