MantisBT - VTK
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ID	Project	Category	View Status	Date Submitted	Last Update
0015525	VTK	(No Category)	public	2015-06-09 09:32	2015-08-07 08:19

Reporter	Cory Quammen
Assigned To	T.J. Corona
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	closed	Resolution	fixed
Platform		OS		OS Version
Product Version	6.3.0
Target Version		Fixed in Version	6.3.0
Project	TBD
Type	crash

Summary	0015525: Crash when point arrays are repeated in VTK unstructured grid XML files
Description	Load the attached file with a vtkXMLUnstructuredGridReader. You should get a crash in vtkAbstractArray::GetNumberOfComponents() because the array instance is NULL. This is because vtkXMLDataReader::ReadPieceData() accesses point data arrays by index, and the maximum index is found by looking at how many point data arrays are defined in the XML file. When a data file has more than one data array with the same name, the XML reader counts all of them. However, vtkPointData can have only one array of a particular name. This leads to the array being requested by index being invalid, hence NULL is returned, hence a crash. The same likely happens for repeat cell arrays.
Steps To Reproduce
Additional Information
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Relationships
Attached Files	RepeatArrayNameCrash.vtu (1,015) 2015-06-09 09:32 https://www.vtk.org/Bug/file/9813/RepeatArrayNameCrash.vtu

Issue History
Date Modified	Username	Field	Change
2015-06-09 09:32	Cory Quammen	New Issue
2015-06-09 09:32	Cory Quammen	File Added: RepeatArrayNameCrash.vtu
2015-08-05 10:23	Utkarsh Ayachit	Assigned To	=> T.J. Corona
2015-08-06 18:23	T.J. Corona	Note Added: 0034912
2015-08-06 18:23	T.J. Corona	Status	backlog => closed
2015-08-06 18:23	T.J. Corona	Resolution	open => fixed
2015-08-06 18:23	T.J. Corona	Fixed in Version	=> 6.3.0
2015-08-06 22:21	Cory Quammen	Note Added: 0034918
2015-08-07 08:19	T.J. Corona	Note Added: 0034921

Notes