cid#1448360 Assignment of overlapping memory

Change-Id: Ifefa007ff7534e65cc35cdbcb4983012b36ed6e0
Reviewed-on: https://gerrit.libreoffice.org/76248
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/connectivity/source/commontools/FValue.cxx b/connectivity/source/commontools/FValue.cxx
index 61f344bb92b5..51adab4f3e98 100644
--- a/connectivity/source/commontools/FValue.cxx
+++ b/connectivity/source/commontools/FValue.cxx
@@ -2086,11 +2086,19 @@ void ORowSetValue::setSigned(bool _bMod)
                     }
                     break;
                 case DataType::BIGINT:
+                {
                     if ( m_bSigned )
-                        m_aValue.m_nInt64 = static_cast<sal_Int64>(m_aValue.m_uInt64);
+                    {
+                        auto nTmp = static_cast<sal_Int64>(m_aValue.m_uInt64);
+                        m_aValue.m_nInt64 = nTmp;
+                    }
                     else
-                        m_aValue.m_uInt64 = static_cast<sal_uInt64>(m_aValue.m_nInt64);
+                    {
+                        auto nTmp = static_cast<sal_uInt64>(m_aValue.m_nInt64);
+                        m_aValue.m_uInt64 = nTmp;
+                    }
                     break;
+                }
             }
             m_eTypeKind = nType;
         }