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Merge pull request #4249 from assimp/kimkulling-fix_nullptr_dereferencing_issue4237 

Fix nullptr dereferencing from std::shared_ptr
kimkulling-fix_division_by_zero_issue4235
Kim Kulling 2021-12-10 11:02:32 +01:00 committed by GitHub
parent ea2e442046 68682d75b5
commit 6bb856335f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 0 deletions
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5
code/AssetLib/DXF/DXFLoader.cpp
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@ -378,6 +378,11 @@ void DXFImporter::ExpandBlockReferences(DXF::Block& bl,const DXF::BlockMap& bloc
const DXF::Block& bl_src = *(*it).second; const DXF::Block& bl_src = *(*it).second;
for (std::shared_ptr<const DXF::PolyLine> pl_in : bl_src.lines) { for (std::shared_ptr<const DXF::PolyLine> pl_in : bl_src.lines) {
if (!pl_in) {
ASSIMP_LOG_ERROR("DXF: PolyLine instance is nullptr, skipping.");
continue;
}
std::shared_ptr<DXF::PolyLine> pl_out = std::shared_ptr<DXF::PolyLine>(new DXF::PolyLine(*pl_in)); std::shared_ptr<DXF::PolyLine> pl_out = std::shared_ptr<DXF::PolyLine>(new DXF::PolyLine(*pl_in));
if (bl_src.base.Length() || insert.scale.x!=1.f || insert.scale.y!=1.f || insert.scale.z!=1.f || insert.angle || insert.pos.Length()) { if (bl_src.base.Length() || insert.scale.x!=1.f || insert.scale.y!=1.f || insert.scale.z!=1.f || insert.angle || insert.pos.Length()) {