New Defects reported by Coverity Scan for LibreOffice

Hi,

Please find the latest report on new defect(s) introduced to LibreOffice found with Coverity Scan.

4 new defect(s) introduced to LibreOffice found with Coverity Scan.
5 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by 
Coverity Scan.

New defect(s) Reported-by: Coverity Scan
Showing 4 of 4 defect(s)


** CID 1441444:  Integer handling issues  (SIGN_EXTENSION)
/sc/source/filter/inc/ftools.hxx: 104 in insert_value<unsigned short, unsigned short>(T1 &, T2, 
unsigned char, unsigned char)()


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*** CID 1441444:  Integer handling issues  (SIGN_EXTENSION)
/sc/source/filter/inc/ftools.hxx: 104 in insert_value<unsigned short, unsigned short>(T1 &, T2, 
unsigned char, unsigned char)()
98         there at bit nStartBit. Other contents of rnBitField keep unchanged. */
99     template< typename Type, typename InsertType >
100     void insert_value( Type& rnBitField, InsertType nValue, sal_uInt8 nStartBit, sal_uInt8 
nBitCount )
101     {
102         unsigned long nMask = ((1UL << nBitCount) - 1);
103         Type nNewValue = static_cast< Type >( nValue & nMask );
> > >     CID 1441444:  Integer handling issues  (SIGN_EXTENSION)
> > >     Suspicious implicit sign extension: "nNewValue" with type "sal_uInt16" (16 bits, unsigned) 
> > > is promoted in "nNewValue << nStartBit" to type "int" (32 bits, signed), then sign-extended to 
> > > type "unsigned long" (64 bits, unsigned).  If "nNewValue << nStartBit" is greater than 
> > > 0x7FFFFFFF, the upper bits of the result will all be 1.
104         rnBitField = (rnBitField & ~(nMask << nStartBit)) | (nNewValue << nStartBit);
105     }
106     
107     class Color;
108     class SfxPoolItem;
109     class SfxItemSet;

** CID 1441443:  Null pointer dereferences  (REVERSE_INULL)
/sw/source/core/text/txtfrm.cxx: 3310 in SwTextFrame::CalcAdditionalFirstLineOffset()()


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*** CID 1441443:  Null pointer dereferences  (REVERSE_INULL)
/sw/source/core/text/txtfrm.cxx: 3310 in SwTextFrame::CalcAdditionalFirstLineOffset()()
3304         // reset additional first line offset
3305         mnAdditionalFirstLineOffset = 0;
3306     
3307         const SwTextNode* pTextNode( GetTextNodeForParaProps() );
3308         // sw_redlinehide: check that pParaPropsNode is the correct one
3309         assert(pTextNode->IsNumbered(getRootFrame()) == pTextNode->IsNumbered(nullptr));
> > >     CID 1441443:  Null pointer dereferences  (REVERSE_INULL)
> > >     Null-checking "pTextNode" suggests that it may be null, but it has already been 
> > > dereferenced on all paths leading to the check.
3310         if (pTextNode && pTextNode->IsNumbered(getRootFrame()) &&
3311             pTextNode->IsCountedInList() && pTextNode->GetNumRule())
3312         {
3313             int nListLevel = pTextNode->GetActualListLevel();
3314     
3315             if (nListLevel < 0)

** CID 1441442:  Integer handling issues  (SIGN_EXTENSION)
/sc/source/filter/inc/ftools.hxx: 104 in insert_value<unsigned short, unsigned char>(T1 &, T2, 
unsigned char, unsigned char)()


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*** CID 1441442:  Integer handling issues  (SIGN_EXTENSION)
/sc/source/filter/inc/ftools.hxx: 104 in insert_value<unsigned short, unsigned char>(T1 &, T2, 
unsigned char, unsigned char)()
98         there at bit nStartBit. Other contents of rnBitField keep unchanged. */
99     template< typename Type, typename InsertType >
100     void insert_value( Type& rnBitField, InsertType nValue, sal_uInt8 nStartBit, sal_uInt8 
nBitCount )
101     {
102         unsigned long nMask = ((1UL << nBitCount) - 1);
103         Type nNewValue = static_cast< Type >( nValue & nMask );
> > >     CID 1441442:  Integer handling issues  (SIGN_EXTENSION)
> > >     Suspicious implicit sign extension: "nNewValue" with type "sal_uInt16" (16 bits, unsigned) 
> > > is promoted in "nNewValue << nStartBit" to type "int" (32 bits, signed), then sign-extended to 
> > > type "unsigned long" (64 bits, unsigned).  If "nNewValue << nStartBit" is greater than 
> > > 0x7FFFFFFF, the upper bits of the result will all be 1.
104         rnBitField = (rnBitField & ~(nMask << nStartBit)) | (nNewValue << nStartBit);
105     }
106     
107     class Color;
108     class SfxPoolItem;
109     class SfxItemSet;

** CID 1441441:  Error handling issues  (UNCAUGHT_EXCEPT)
/sc/source/core/data/formulacell.cxx: 1505 in 
<unnamed>::TemporaryCellGroupMaker::~TemporaryCellGroupMaker()()


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*** CID 1441441:  Error handling issues  (UNCAUGHT_EXCEPT)
/sc/source/core/data/formulacell.cxx: 1505 in 
<unnamed>::TemporaryCellGroupMaker::~TemporaryCellGroupMaker()()
1499             if( mEnabled && mCell->GetCellGroup() == nullptr )
1500             {
1501                 mCell->CreateCellGroup( 1, false );
1502                 mCell->GetDocument()->GetRecursionHelper().AddTemporaryGroupCell( mCell );
1503             }
1504         }
> > >     CID 1441441:  Error handling issues  (UNCAUGHT_EXCEPT)
> > >     An exception of type "com::sun::star::uno::RuntimeException" is thrown but the throw list 
> > > "throw()" doesn't allow it to be thrown. This will cause a call to unexpected() which usually 
> > > calls terminate().
1505         ~TemporaryCellGroupMaker()
1506         {
1507             if( mEnabled )
1508                 mCell->GetDocument()->GetRecursionHelper().CleanTemporaryGroupCells();
1509         }
1510         ScFormulaCell* mCell;


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