File expat-CVE-2022-25314.patch of Package expat.26155

From efcb347440ade24b9f1054671e6bd05e60b4cafd Mon Sep 17 00:00:00 2001
From: Samanta Navarro <ferivoz@riseup.net>
Date: Tue, 15 Feb 2022 11:56:57 +0000
Subject: [PATCH] Prevent integer overflow in copyString

The copyString function is only used for encoding string supplied by
the library user.
---
 expat/lib/xmlparse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: expat-2.2.5/lib/xmlparse.c
===================================================================
--- expat-2.2.5.orig/lib/xmlparse.c
+++ expat-2.2.5/lib/xmlparse.c
@@ -7445,7 +7445,7 @@ static XML_Char *
 copyString(const XML_Char *s,
            const XML_Memory_Handling_Suite *memsuite)
 {
-    int charsRequired = 0;
+    size_t charsRequired = 0;
     XML_Char *result;
 
     /* First determine how long the string is */