Merge pull request #4085 from assimp/kimkulling-issue_3442

Fix possible nullptr dereferencing in material parsing
2021-09-21 11:19:49 +02:00
parent 4fd7330808 fb5b5e9d40
commit 590307dba9
1 changed files with 6 additions and 0 deletions
@@ -232,6 +232,12 @@ void ObjFileMtlImporter::getIlluminationModel(int &illum_model) {
 //  Loads a single float value.
 void ObjFileMtlImporter::getFloatValue(ai_real &value) {
    m_DataIt = CopyNextWord<DataArrayIt>(m_DataIt, m_DataItEnd, &m_buffer[0], BUFFERSIZE);
+    size_t len = std::strlen(&m_buffer[0]);
+    if (0 == len) {
+        value = 0.0f;
+        return;
+    }
+    
    value = (ai_real)fast_atof(&m_buffer[0]);
 }