From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: Mon, 11 May 2026 18:18:06 +0000 (+0300)
Subject: Use palloc_array() in a few more places to avoid overflow
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3f7dde39e940c86cccc179e8cbe188966e4e3ec;p=thirdparty%2Fpostgresql.git

Use palloc_array() in a few more places to avoid overflow

These could overflow on 32-bit systems.

Backpatch-through: 14
Security: CVE-2026-6473
---

diff --git a/contrib/hstore_plperl/hstore_plperl.c b/contrib/hstore_plperl/hstore_plperl.c
index 69001191cc0..996b46b148d 100644
--- a/contrib/hstore_plperl/hstore_plperl.c
+++ b/contrib/hstore_plperl/hstore_plperl.c
@@ -122,7 +122,7 @@ plperl_to_hstore(PG_FUNCTION_ARGS)
 
 	pcount = hv_iterinit(hv);
 
-	pairs = palloc(pcount * sizeof(Pairs));
+	pairs = palloc_array(Pairs, pcount);
 
 	i = 0;
 	while ((he = hv_iternext(hv)))
diff --git a/contrib/hstore_plpython/hstore_plpython.c b/contrib/hstore_plpython/hstore_plpython.c
index d2be030e07c..f1e483980f4 100644
--- a/contrib/hstore_plpython/hstore_plpython.c
+++ b/contrib/hstore_plpython/hstore_plpython.c
@@ -151,7 +151,7 @@ plpython_to_hstore(PG_FUNCTION_ARGS)
 		Py_ssize_t	i;
 		Pairs	   *pairs;
 
-		pairs = palloc(pcount * sizeof(*pairs));
+		pairs = palloc_array(Pairs, pcount);
 
 		for (i = 0; i < pcount; i++)
 		{