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path: root/external/libetonyek/ubsan.patch
blob: b7da70904b6213b30c799c657249240d745d3501 (plain)
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--- src/lib/libetonyek_xml.cpp
+++ src/lib/libetonyek_xml.cpp
@@ -33,7 +33,7 @@
     unsigned long bytesRead = 0;
     const unsigned char *const bytes = input->read(len, bytesRead);
 
-    std::memcpy(buffer, bytes, static_cast<int>(bytesRead));
+    if (bytesRead != 0) std::memcpy(buffer, bytes, static_cast<int>(bytesRead));
     return static_cast<int>(bytesRead);
   }
   catch (...)