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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		5 months ago
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expected	Detect version mismatch in brin_page_items	9 months ago
sql	Detect version mismatch in brin_page_items	9 months ago
.gitignore	…
Makefile	Add bt_multi_page_stats() function to contrib/pageinspect.	3 years ago
brinfuncs.c	Detect version mismatch in brin_page_items	9 months ago
btreefuncs.c	Consolidate ItemPointer to Datum conversion functions	3 years ago
fsmfuncs.c	Update copyright for 2024	2 years ago
ginfuncs.c	Update copyright for 2024	2 years ago
gistfuncs.c	Make the order of the header file includes consistent	2 years ago
hashfuncs.c	Update copyright for 2024	2 years ago
heapfuncs.c	Be more wary of corrupt data in pageinspect's heap_page_items().	5 months ago
meson.build	Update copyright for 2024	2 years ago
pageinspect--1.0--1.1.sql	…
pageinspect--1.1--1.2.sql	…
pageinspect--1.2--1.3.sql	…
pageinspect--1.3--1.4.sql	…
pageinspect--1.4--1.5.sql	…
pageinspect--1.5--1.6.sql	…
pageinspect--1.5.sql	…
pageinspect--1.6--1.7.sql	…
pageinspect--1.7--1.8.sql	pageinspect: Fix types used for bt_metap() columns.	6 years ago
pageinspect--1.8--1.9.sql	Use full 64-bit XIDs in deleted nbtree pages.	5 years ago
pageinspect--1.9--1.10.sql	pageinspect: Improve page_header() for pages of 32kB	4 years ago
pageinspect--1.10--1.11.sql	Mark pageinspect's disk-accessing functions as parallel restricted.	3 years ago
pageinspect--1.11--1.12.sql	Show empty BRIN ranges in brin_page_items	2 years ago
pageinspect.control	Add bt_multi_page_stats() function to contrib/pageinspect.	3 years ago
pageinspect.h	Update copyright for 2024	2 years ago
rawpage.c	Update copyright for 2024	2 years ago