new file mode 100644
@@ -0,0 +1,35 @@
+CVE: CVE-2022-25314
+Upstream-Status: Backport [https://github.com/libexpat/libexpat/commit/efcb3474]
+
+Ref:
+* https://github.com/libexpat/libexpat/pull/560
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+
+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(-)
+
+diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
+index 4b43e613..a39377c2 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -7412,7 +7412,7 @@ getElementType(XML_Parser parser, const ENCODING *enc, const char *ptr,
+
+ 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 */
+--
+2.33.0
+
@@ -21,6 +21,7 @@ SRC_URI = "https://github.com/libexpat/libexpat/releases/download/R_${VERSION_TA
file://CVE-2022-25236-1.patch \
file://CVE-2022-25236-2.patch \
file://CVE-2022-25313.patch \
+ file://CVE-2022-25314.patch \
"
UPSTREAM_CHECK_URI = "https://github.com/libexpat/libexpat/releases/"