New Defects reported by Coverity Scan for LibreOffice

[scan-admin at coverity.com]

Hi,

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

5 new defect(s) introduced to LibreOffice found with Coverity Scan.
3 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 5 of 5 defect(s)


** CID 1634810:  Integer handling issues  (INTEGER_OVERFLOW)
/sw/source/core/text/frmcrsr.cxx: 1654 in SwTextFrame::FillCursorPos(SwFillData &) const()


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*** CID 1634810:  Integer handling issues  (INTEGER_OVERFLOW)
/sw/source/core/text/frmcrsr.cxx: 1654 in SwTextFrame::FillCursorPos(SwFillData &) const()
1648                                     nTabCnt = 0;
1649                                     nSpaceCnt = 0;
1650                                 }
1651                                 else
1652                                 {
1653                                     rRect.Left( nRightTab );
>>>     CID 1634810:  Integer handling issues  (INTEGER_OVERFLOW)
>>>     Expression "++nTabCnt", which is equal to 0, where "nTabCnt" is known to be equal to 65535, overflows the type that receives it, an unsigned integer 16 bits wide.
1654                                     ++nTabCnt;
1655                                 }
1656                             }
1657                         }
1658                         else if( SwFillMode::Space == rFill.Mode() )
1659                         {

** CID 1634809:  Null pointer dereferences  (NULL_RETURNS)


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*** CID 1634809:  Null pointer dereferences  (NULL_RETURNS)
/editeng/source/editeng/impedit2.cxx: 3790 in ImpEditEngine::GetDocPosTopLeft(int)()
3784     
3785     Point ImpEditEngine::GetDocPosTopLeft( sal_Int32 nParagraph )
3786     {
3787         const ParaPortion* pPPortion = maParaPortionList.SafeGetObject(nParagraph);
3788         DBG_ASSERT( pPPortion, "Paragraph not found: GetWindowPosTopLeft" );
3789     
>>>     CID 1634809:  Null pointer dereferences  (NULL_RETURNS)
>>>     Dereferencing a pointer that might be "nullptr" "pPPortion" when calling "GetNode".
3790         auto stMetrics = GetFontUnitMetrics(pPPortion->GetNode());
3791     
3792         Point aPoint;
3793         if ( pPPortion )
3794         {
3795             // If someone calls GetLineHeight() with an empty Engine.

** CID 1634808:  Performance inefficiencies  (COPY_INSTEAD_OF_MOVE)
/svl/source/crypto/cryptosign.cxx: 992 in svl::crypto::Signing::Sign(rtl::OStringBuffer &)()


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*** CID 1634808:  Performance inefficiencies  (COPY_INSTEAD_OF_MOVE)
/svl/source/crypto/cryptosign.cxx: 992 in svl::crypto::Signing::Sign(rtl::OStringBuffer &)()
986         {
987             m_rSigningContext.m_nSignatureTime = now / 1000;
988         }
989     
990         if (!m_rSigningContext.m_xCertificate.is())
991         {
>>>     CID 1634808:  Performance inefficiencies  (COPY_INSTEAD_OF_MOVE)
>>>     "aHashResult" is copied in a call to copy assignment "operator =", when it could be moved instead.
992             m_rSigningContext.m_aDigest = aHashResult;
993             // No certificate is provided: don't actually sign -- just update the context with the
994             // parameters for the signing and return.
995             return false;
996         }
997     

** CID 1634807:  Null pointer dereferences  (REVERSE_INULL)
/editeng/source/editeng/impedit2.cxx: 3793 in ImpEditEngine::GetDocPosTopLeft(int)()


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*** CID 1634807:  Null pointer dereferences  (REVERSE_INULL)
/editeng/source/editeng/impedit2.cxx: 3793 in ImpEditEngine::GetDocPosTopLeft(int)()
3787         const ParaPortion* pPPortion = maParaPortionList.SafeGetObject(nParagraph);
3788         DBG_ASSERT( pPPortion, "Paragraph not found: GetWindowPosTopLeft" );
3789     
3790         auto stMetrics = GetFontUnitMetrics(pPPortion->GetNode());
3791     
3792         Point aPoint;
>>>     CID 1634807:  Null pointer dereferences  (REVERSE_INULL)
>>>     Null-checking "pPPortion" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
3793         if ( pPPortion )
3794         {
3795             // If someone calls GetLineHeight() with an empty Engine.
3796             DBG_ASSERT(IsFormatted() || !IsFormatting(), "GetDocPosTopLeft: Doc not formatted - unable to format!");
3797             if (!IsFormatted())
3798                 FormatAndLayout();

** CID 1634806:  Control flow issues  (DEADCODE)
/sw/source/uibase/misc/redlndlg.cxx: 1397 in SwRedlineAcceptDlg::GotoHdl(Timer *)()


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*** CID 1634806:  Control flow issues  (DEADCODE)
/sw/source/uibase/misc/redlndlg.cxx: 1397 in SwRedlineAcceptDlg::GotoHdl(Timer *)()
1391                 pSh->LeaveAddMode();
1392                 pSh->EndAction();
1393                 SwViewShell::SetCareDialog(nullptr);
1394             }
1395         }
1396     
>>>     CID 1634806:  Control flow issues  (DEADCODE)
>>>     Execution cannot reach the expression "NULL" inside this statement: "pShell = (pSh ? pSh->GetDoc...".
1397         SwDocShell* pShell = pSh ? pSh->GetDoc()->GetDocShell() : nullptr;
1398         bool const bEnable = pShell && !pShell->IsReadOnly()
1399             && !pSh->getIDocumentRedlineAccess().GetRedlinePassword().hasElements();
1400         m_pTPView->EnableAccept( bEnable && bSel /*&& !bReadonlySel*/ );
1401         m_pTPView->EnableReject( bEnable && bSel /*&& !bReadonlySel*/ );
1402         m_pTPView->EnableClearFormat( bEnable && bSel && !bIsNotFormated /*&& !bReadonlySel*/ );


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