From 689bbdceadf52a81aedf392803306828440b2199 Mon Sep 17 00:00:00 2001
From: liuzhilin <liuzhilin@kylinos.cn>
Date: Fri, 21 Nov 2025 14:43:28 +0800
Subject: [PATCH] backport stream patch

---
 ...sing-undoing-of-group-size-expansion.patch | 37 +++++++++++++++++++
 expat.spec                                    |  7 +++-
 2 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 backport-Fix-missing-undoing-of-group-size-expansion.patch

diff --git a/backport-Fix-missing-undoing-of-group-size-expansion.patch b/backport-Fix-missing-undoing-of-group-size-expansion.patch
new file mode 100644
index 0000000..ad014be
--- /dev/null
+++ b/backport-Fix-missing-undoing-of-group-size-expansion.patch
@@ -0,0 +1,37 @@
+From 9f9680a8982bdbdf3f7fa6a8e65f7c36c3d3173e Mon Sep 17 00:00:00 2001
+From: liuzhilin <liuzhilin@kylinos.cn>
+Date: Fri, 21 Nov 2025 17:57:28 +0800
+Subject: [PATCH] backport-Fix-missing-undoing-of-group-size-expansion
+
+https://github.com/libexpat/libexpat/commit/10fce9204a3adb23a067dd602214649324f72fdf
+
+---
+ lib/xmlparse.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/lib/xmlparse.c b/lib/xmlparse.c
+index a187a3a..8cf5816 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -5921,14 +5921,17 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+              * sizeof(unsigned int) < sizeof(size_t), e.g. on x86_64. */
+ #if UINT_MAX >= SIZE_MAX
+             if (parser->m_groupSize > (size_t)(-1) / sizeof(int)) {
++		parser->m_groupSize /= 2;
+               return XML_ERROR_NO_MEMORY;
+             }
+ #endif
+ 
+             int *const new_scaff_index = REALLOC(
+                 parser, dtd->scaffIndex, parser->m_groupSize * sizeof(int));
+-            if (new_scaff_index == NULL)
++            if (new_scaff_index == NULL){
++	    	parser->m_groupSize /= 2;
+               return XML_ERROR_NO_MEMORY;
++	    }
+             dtd->scaffIndex = new_scaff_index;
+           }
+         } else {
+-- 
+2.33.0
+
diff --git a/expat.spec b/expat.spec
index 214fd07..92ae5f4 100644
--- a/expat.spec
+++ b/expat.spec
@@ -1,11 +1,13 @@
 Name:           expat
 Version:        2.7.3
-Release:        1
+Release:        2
 Summary:        An XML parser library
 License:        MIT
 URL:            https://libexpat.github.io/
 Source0:        https://github.com/libexpat/libexpat/releases/download/R_%{version_major}_%{version_minor}_%{version_patch}/expat-%{version}.tar.xz
 
+Patch6001: backport-Fix-missing-undoing-of-group-size-expansion.patch
+
 BuildRequires:  sed,autoconf,automake,gcc-c++,libtool,xmlto,make
 BuildRequires:  cmake-rpm-macros
 
@@ -61,6 +63,9 @@ rm -fv %{buildroot}%{_datadir}/doc/%{name}/changelog
 %{_mandir}/man1/*
 
 %changelog
+* Fri Nov 21 2025 liuzhilin <liuzhilin@kylinoscn> - 2.7.3-2
+- Fix-missing-undoing-of-group-size-expansion
+
 * Thu Sep 25 2025 dillon chen <dillon.chen@gmail.com> -2.7.3-1
 - update to 2.7.3
 
-- 
Gitee