!48 Fix CVE-2024-48425

From: @li_ning_jie 
Reviewed-by: @wang--ge 
Signed-off-by: @wang--ge

CVE-2024-48425.patch

@@ -0,0 +1,27 @@
+From ecdf8d24b85367b22ba353b4f82299d4af7f1f97 Mon Sep 17 00:00:00 2001
+From: Kim Kulling <kimkulling@users.noreply.github.com>
+Date: Mon, 7 Oct 2024 10:30:45 +0200
+Subject: [PATCH] SplitLargeMeshes: Fix crash (#5799)
+
+- Fix nullptr access when rootnode of the scene is a nullptr. This can happen even if the scene stores any kind of meshes. closes https://github.com/assimp/assimp/issues/5791
+---
+ code/SplitLargeMeshes.cpp | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/code/SplitLargeMeshes.cpp b/code/SplitLargeMeshes.cpp
+index 5e21ec6..9a09316 100644
+--- a/code/SplitLargeMeshes.cpp
++++ b/code/SplitLargeMeshes.cpp
+@@ -113,6 +113,9 @@ void SplitLargeMeshesProcess_Triangle::SetupProperties( const Importer* pImp)
+ void SplitLargeMeshesProcess_Triangle::UpdateNode(aiNode* pcNode,
+     const std::vector<std::pair<aiMesh*, unsigned int> >& avList)
+ {
++    if (pcNode == nullptr) {
++        return;
++    }
+     // for every index in out list build a new entry
+     std::vector<unsigned int> aiEntries;
+     aiEntries.reserve(pcNode->mNumMeshes + 1);
+-- 
+2.33.0
+

assimp.spec

@@ -1,6 +1,6 @@
 Name:          assimp
 Version:       3.3.1
-Release:       20
+Release:       21
 Summary:       Library to load and process various 3D model formats into applications.
 License:       BSD and MIT
 URL:           http://assimp.sourceforge.net
@@ -13,6 +13,7 @@ Patch0005:     assimp-3.3.1-install-pkgconfig.patch
 Patch0006:     0001-Morph-animation-support-for-collada.patch
 Patch0007:     0001-Enable-doxygen-been-properly-used-from-cmake-build-a.patch
 Patch0008:     0001-Apply-mechanism-to-decide-use-for-IrrXML-external-or.patch
+Patch0009:     CVE-2024-48425.patch
 BuildRequires: gcc-c++ boost-devel cmake dos2unix irrlicht-devel irrXML-devel
 BuildRequires: doxygen poly2tri-devel gtest-devel pkgconfig(zzip-zlib-config)
 BuildRequires: pkgconfig(zlib) pkgconfig(minizip) pkgconfig(python2) python2-rpm-macros
@@ -116,6 +117,9 @@ install -m 0644 port/PyAssimp/pyassimp/*.py %{buildroot}%{python3_sitelib}/pyass
 %{python3_sitelib}/pyassimp
 
 %changelog
+* Sat Oct 26 2024 liningjie <liningjie@xfusion.com> - 3.3.1-21
+- Fix CVE-2024-48425
+
 * Mon Dec 28 2020 wangxiao <wangxiao65@huawei.com> - 3.3.1-20
 - Remove unnessary BuildRequire DevIL