Michael Paquier 31d0b917d1 hstore: Fix NULL pointer dereference with receive function ...

The receive function of hstore was not able to handle correctly
duplicate key values when a new duplicate links to a NULL value, where a
pfree() could be attempted on a NULL pointer, crashing due to a pointer
dereference.

This problem would happen for a COPY BINARY, when stacking values like
that:
aa => 5
aa => null

The second key/value pair is discarded and pfree() calls are attempted
on its key and its value, leading to a pointer dereference for the value
part as the value is NULL.  The first key/value pair takes priority when
a duplicate is found.

Per offline report.

Reported-by: "Anemone" <vergissmeinnichtzh@gmail.com>
Reported-by: "A1ex" <alex000young@gmail.com>
Backpatch-through: 14

2026-02-17 08:41:34 +09:00

..

data

Add GIN support for pg_trgm. From Guillaume Smet <guillaume.smet@gmail.com>

2007-03-14 14:21:53 +00:00

expected

hstore: Tighten key/value parsing check for whitespaces

2023-06-12 09:14:03 +09:00

sql

hstore: Tighten key/value parsing check for whitespaces

2023-06-12 09:14:03 +09:00

.gitignore

Support "make check" in contrib

2011-04-25 22:27:11 +03:00

hstore_compat.c

Fix most -Wundef warnings

2019-10-19 18:31:38 +02:00

hstore_gin.c

Add construct_array_builtin, deconstruct_array_builtin

2022-07-01 11:23:15 +02:00

hstore_gist.c

Remove useless casts to (void *) in arguments of some system functions

2023-02-07 06:57:59 +01:00

hstore_io.c

hstore: Fix NULL pointer dereference with receive function

2026-02-17 08:41:34 +09:00

hstore_op.c

Fix incorrect uses of Datum conversion macros

2022-09-05 13:30:44 +02:00

hstore_subs.c

Update copyright for 2023

2023-01-02 15:00:37 -05:00

hstore--1.1--1.2.sql

Make contrib modules' installation scripts more secure.

2020-08-10 10:44:42 -04:00

hstore--1.2--1.3.sql

Introduce jsonb, a structured format for storing json.

2014-03-23 16:40:19 -04:00

hstore--1.3--1.4.sql

Make contrib modules' installation scripts more secure.

2020-08-10 10:44:42 -04:00

hstore--1.4--1.5.sql

Distinguish selectivity of < from <= and > from >=.

2017-09-13 11:12:39 -04:00

hstore--1.4.sql

Update extensions with GIN/GIST support for parallel query.

2016-06-14 13:34:37 -04:00

hstore--1.5--1.6.sql

Add a 64-bit hash function for type hstore.

2018-11-23 13:37:34 -05:00

hstore--1.6--1.7.sql

Improve selectivity estimation for assorted match-style operators.

2020-04-01 10:32:33 -04:00

hstore--1.7--1.8.sql

Remove deprecated containment operators for contrib types.

2021-03-05 10:45:41 -05:00

hstore.control

Allow subscripting of hstore values.

2020-12-11 18:58:21 -05:00

hstore.h

Fix final warnings produced by -Wshadow=compatible-local

2022-10-07 13:13:27 +13:00

Makefile

hstore: Tighten key/value parsing check for whitespaces

2023-06-12 09:14:03 +09:00

meson.build

hstore: Tighten key/value parsing check for whitespaces

2023-06-12 09:14:03 +09:00