0023086: OCC 6.5.2 DNaming bug

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0023086

Community

[OCCT] OCCT:Application Framework

public

2012-04-06 15:45

2012-11-16 13:17

Reporter

szy

Assigned To

szy

Priority

normal

Severity

major

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

[OCCT] 6.5.2

Target Version

[OCCT] 6.5.4

Fixed in Version

[OCCT] 6.5.4

Test case number

Not needed

Summary

0023086: OCC 6.5.2 DNaming bug

Description

Post from the Forum [Valeriu Catina] - http://www.opencascade.org/org/forum/thread_23075/ [^] .
"...
in package TKDCAF, module DNaming, file DNaming_TransformationDriver.cxx, function LoadNamingDS contains code similar to:

---

TNaming_Builder* pB1;

// ... irrelevant code

if(aF) {
const TDF_Label& aFLabel = theResultLabel.FindChild(FACES_TAG, Standard_True);
TNaming_Builder aFBuilder(aFLabel);
pB1 = &aFBuilder
aF = Standard_False;
}
// ... irrelevant code
pB1->Modify(anIt.Key(), newShape);

---

pB1 takes the address of a temporary (aFBuilder in our case). As aFBuilder is destroyed at the end of the if block pB1 is invalid when pB1->Modify(anIt.Key(), newShape) is reached."

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Relationships

has duplicate	0023355	closed	bugmaster	Community	Pointer to local variable 'TNaming_Builder' is stored outside the scope of this variable. Such a pointer will become invalid.
related to	0021977	closed	szy	Open CASCADE	Unsafe implementation of TNaming_Builder

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2012-04-06 15:45