From 4ada74f2d70040f2215b2cac93128ac19248c404 Mon Sep 17 00:00:00 2001
From: cenhuilin <cenhuilin@kylinos.cn>
Date: Tue, 14 May 2024 09:55:26 +0800
Subject: [PATCH] fix CVE-2024-34459

---
 backport-CVE-2024-34459.patch | 26 ++++++++++++++++++++++++++
 libxml2.spec                  |  9 ++++++++-
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 backport-CVE-2024-34459.patch

diff --git a/backport-CVE-2024-34459.patch b/backport-CVE-2024-34459.patch
new file mode 100644
index 0000000..b7b80ce
--- /dev/null
+++ b/backport-CVE-2024-34459.patch
@@ -0,0 +1,26 @@
+From 2876ac5392a4e891b81e40e592c3ac6cb46016ce Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Tue, 14 May 2024 08:50:50 +0800
+Subject: [PATCH] [CVE-2024-34459] Fix buffer overread with `xmllint --htmlout`
+
+Add a missing bounds check.
+---
+ xmllint.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/xmllint.c b/xmllint.c
+index 5c26c3f..fcbf465 100644
+--- a/xmllint.c
++++ b/xmllint.c
+@@ -560,7 +560,7 @@ xmlHTMLPrintFileContext(xmlParserInputPtr input) {
+     len = strlen(buffer);
+     snprintf(&buffer[len], sizeof(buffer) - len, "\n");
+     cur = input->cur;
+-    while ((*cur == '\n') || (*cur == '\r'))
++    while ((cur > base) && ((*cur == '\n') || (*cur == '\r')))
+ 	cur--;
+     n = 0;
+     while ((cur != base) && (n++ < 80)) {
+-- 
+2.33.0
+
diff --git a/libxml2.spec b/libxml2.spec
index 187b2fa..595c4ea 100644
--- a/libxml2.spec
+++ b/libxml2.spec
@@ -1,12 +1,13 @@
 Summary: Library providing XML and HTML support
 Name: libxml2
 Version: 2.12.6
-Release: 1
+Release: 2
 License: MIT
 Group: Development/Libraries
 Source: https://download.gnome.org/sources/%{name}/2.11/%{name}-%{version}.tar.xz
 
 Patch0: libxml2-multilib.patch
+Patch1: backport-CVE-2024-34459.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
 BuildRequires: python3-devel
@@ -158,6 +159,12 @@ rm -fr %{buildroot}
 
 
 %changelog
+* Tue May 14 2024 cenhuilin <cenhuilin@kylinos.cn> - 2.12.6-2
+- Type:CVE
+- CVE:CVE-2024-34459
+- SUG:NA
+- DESC:fix CVE-2024-34459
+
 * Wed Feb 28 2024 Zhipeng Xie <xiezhipeng1@huawei.com> - 2.12.6-1
 - Type:enhancement
 - CVE:NA
-- 
Gitee