0023938: Crash at StepToTopoDS_TranslateEdgeLoop::Init() &StepToTopoDS_TranslateEdge::Init() - MantisBT

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ID

Project

Category

View Status

Date Submitted

Last Update

0023938

Community

[OCCT] OCCT:Data Exchange

public

2013-04-26 17:24

2014-01-22 11:05

Reporter

gdumonteil

Assigned To

ika

Priority

high

Severity

crash

Status

closed

Resolution

fixed

Platform

x64

OS

Windows

OS Version

7

Product Version

[OCCT] 6.6.0

Target Version

[OCCT] 6.7.0

Fixed in Version

[OCCT] 6.7.0

Summary

0023938: Crash at StepToTopoDS_TranslateEdgeLoop::Init() &StepToTopoDS_TranslateEdge::Init()

Description

When loading a STEP file from our client, we've got a crash at "StepToTopoDS_TranslateEdgeLoop::Init()".

First, we're reading a STEP file with STEPCAFControl_Reader::ReadFile() method.
Then, we're transfer it with the "Transfer" method.

The crash happen during the transfer procedure, at StepToTopoDS_TranslateEdgeLoop::Init(), especialy at the IsKind test: "if (C->IsKind(STANDARD_TYPE(StepGeom_SurfaceCurve)))", line 294.
In our case, C seems to be NULL.

Just after at line 311, there is a nullity check of C: "if (!C.IsNull())".

To correct the crash, we add a nullity check before the call of the IsKind method:

if (!C.IsNull()) {
if (C->IsKind(STANDARD_TYPE(StepGeom_SurfaceCurve))) {

With this correction, we got another crash at "StepToTopoDS_TranslateEdge::Init()", here at line 311, when testing the kind of C: "if ( C->IsKind(STANDARD_TYPE(StepGeom_Pcurve)))"

We correct here also by cheking the nullity of C before calling the IsKind function:

if (!C.IsNull()) {
if ( C->IsKind(STANDARD_TYPE(StepGeom_Pcurve))) {

With this, we're finally able to fully transfer the STEP file.

We didn't go inside OCCT to find why the EdgeGeometry of a specific StepShape_EdgeCurve is NULL. Maybe, somebody of the OCCT dev team can find a better way to correct this.

Steps To Reproduce

We can't share the STEP file from our client. The STEP file was exported from SolidWorks 2011.

Tags

No tags attached.

Test case number

Not needed

Relationships

parent of

closed

Crash at StepToTopoDS_TranslateEdge::Init()

Notes
(0024377) ika (developer) 2013-05-14 14:31	Necessary checks were added. Branch CR23938 is ready to be reviewed. Dear GKA, Please review.

(0024378) gka (developer) 2013-05-14 14:56	Branch CR23938 is ready to be tested.

(0024402) mkv (tester) 2013-05-15 16:25	Dear BugMaster, Branch CR23938 (and products from GIT master) was compiled on Linux and Windows platforms and tested. SHA-1: 8c5342fb07ed2dacbc0da71ae4ac7f5e17905c54 Number of compiler warnings: occt component : Linux: 2 (2 on master) Windows: 11 (11 on master) products component : Linux: 0 (0 on master) Windows: 64 (64 on master) Regressions: No regressions Improvements: No improvements Testing cases: Not needed Testing on Linux: Total MEMORY difference: 365994864 / 366044616 Total CPU difference: 44238.650000001195 / 43849.82000000105 Testing on Windows: Total MEMORY difference: 419426308 / 421413388 Total CPU difference: 38636.328125 / 32294.609375 There are not serious differences in images found by testdiff.

Related Changesets
occt: master 2a141d40 Timestamp: 2013-05-14 10:29:28 Author: ika [ Details ] [ Diff ]	0023938: Crash at StepToTopoDS_TranslateEdgeLoop::Init() &StepToTopoDS_TranslateEdge::Init() necessary checks were added
	mod - src/StepToTopoDS/StepToTopoDS_TranslateEdgeLoop.cxx		[ Diff ] [ File ]

Issue History
Date Modified	Username	Field	Change
2013-04-26 17:24	gdumonteil	New Issue
2013-04-26 17:24	gdumonteil	Assigned To	=> gka
2013-05-08 15:28	gka	Assigned To	gka => ika
2013-05-08 15:28	gka	Status	new => assigned
2013-05-14 14:31	ika	Note Added: 0024377
2013-05-14 14:31	ika	Assigned To	ika => gka
2013-05-14 14:31	ika	Status	assigned => resolved
2013-05-14 14:56	gka	Note Added: 0024378
2013-05-14 14:56	gka	Status	resolved => reviewed
2013-05-15 16:25	mkv	Note Added: 0024402
2013-05-15 16:25	mkv	Test case number	=> Not needed
2013-05-15 16:25	mkv	Assigned To	gka => bugmaster
2013-05-15 16:25	mkv	Status	reviewed => tested
2013-05-20 10:56	ika	Changeset attached	=> occt master 2a141d40
2013-05-20 10:56	ika	Assigned To	bugmaster => ika
2013-05-20 10:56	ika	Status	tested => verified
2013-05-20 10:56	ika	Resolution	open => fixed
2013-05-20 16:55	bugmaster	Target Version	=> 6.7.0
2013-12-19 13:53	bugmaster	Status	verified => closed
2013-12-19 13:55	bugmaster	Fixed in Version	=> 6.7.0
2014-01-22 11:05	mkv	Relationship added	parent of 0024517

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