[XERCESC-2175] Source and destination overlap in memcpy

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.2.0, 3.2.1, 3.2.2, 3.2.3
• Component/s: Validating Parser (XML Schema)
• Assignee: Unassigned
• Reporter: João M. S. Silva
• Created: 21/Aug/19 16:14
• Updated: 07/Apr/20 14:41

Description

I get this Valgrind error:

==5331== Source and destination overlap in memcpy(0x38f870c0, 0x38f870c2, 70)
==5331== at 0x442F0C8: memcpy@@GLIBC_2.14 (vg_replace_strmem.c:1033)
==5331== by 0x4999F77: xercesc_3_1::XMLString::collapseWS(unsigned short*, xercesc_3_1::MemoryManager*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AA78A4: xercesc_3_1::TraverseSchema::getElementAttValue(xercesc_3_1::DOMElement const*, unsigned short const*, xercesc_3_1::DatatypeValidator::ValidatorType) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4ABCC76: xercesc_3_1::TraverseSchema::traverseElementDecl(xercesc_3_1::DOMElement const*, bool) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AB819E: xercesc_3_1::TraverseSchema::traverseChoiceSequence(xercesc_3_1::DOMElement const*, int, bool&) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AB8C55: xercesc_3_1::TraverseSchema::processComplexContent(xercesc_3_1::DOMElement const*, unsigned short const*, xercesc_3_1::DOMElement const*, xercesc_3_1::ComplexTypeInfo*, unsigned short const*, bool, bool) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AB9F39: xercesc_3_1::TraverseSchema::traverseComplexTypeDecl(xercesc_3_1::DOMElement const*, bool, unsigned short const*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AC02C1: xercesc_3_1::TraverseSchema::processChildren(xercesc_3_1::DOMElement const*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AC0F60: xercesc_3_1::TraverseSchema::traverseInclude(xercesc_3_1::DOMElement const*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4ABFD6B: xercesc_3_1::TraverseSchema::processChildren(xercesc_3_1::DOMElement const*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AC0A55: xercesc_3_1::TraverseSchema::doTraverseSchema(xercesc_3_1::DOMElement const*) (in /usr/lib64/libxerces-c-3.1.so)
==5331== by 0x4AC3FB1: xercesc_3_1::TraverseSchema::TraverseSchema(xercesc_3_1::DOMElement*, xercesc_3_1::XMLStringPool*, xercesc_3_1::SchemaGrammar*, xercesc_3_1::GrammarResolver*, xercesc_3_1::RefHash2KeysTableOf<xercesc_3_1::SchemaInfo, xercesc_3_1::StringHasher>, xercesc_3_1::RefHash2KeysTableOf<xercesc_3_1::SchemaInfo, xercesc_3_1::StringHasher>, xercesc_3_1::XMLScanner*, unsigned short const*, xercesc_3_1::XMLEntityHandler*, xercesc_3_1::XMLErrorReporter*, xercesc_3_1::MemoryManager*, bool) (in /usr/lib64/libxerces-c-3.1.so)