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path: root/external/libetonyek/ubsan.patch
blob: 260e9f33df58caf7fad6b0f8be53704250c56730 (plain)
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--- src/lib/libetonyek_xml.cpp
+++ src/lib/libetonyek_xml.cpp
@@ -35,7 +35,7 @@
     unsigned long bytesRead = 0;
     const unsigned char *const bytes = input->read((unsigned long)len, bytesRead);
 
-    std::memcpy(buffer, bytes, static_cast<size_t>(bytesRead));
+    if (bytesRead != 0) std::memcpy(buffer, bytes, static_cast<size_t>(bytesRead));
     return static_cast<int>(bytesRead);
   }
   catch (...)