diff options
Diffstat (limited to 'sot')
| -rw-r--r-- | sot/source/sdstor/stgstrms.cxx | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sot/source/sdstor/stgstrms.cxx b/sot/source/sdstor/stgstrms.cxx index 1f7f0769f0ce..0933ba7d265e 100644 --- a/sot/source/sdstor/stgstrms.cxx +++ b/sot/source/sdstor/stgstrms.cxx @@ -71,10 +71,12 @@ rtl::Reference< StgPage > StgFAT::GetPhysPage( sal_Int32 nByteOff ) sal_Int32 StgFAT::GetNextPage( sal_Int32 nPg ) { - if( nPg >= 0 ) + if (nPg >= 0) { - rtl::Reference< StgPage > pPg = GetPhysPage( nPg << 2 ); - nPg = pPg.is() ? StgCache::GetFromPage( pPg, m_nOffset >> 2 ) : STG_EOF; + if (nPg > (SAL_MAX_INT32 >> 2)) + return STG_EOF; + rtl::Reference< StgPage > pPg = GetPhysPage( nPg << 2 ); + nPg = pPg.is() ? StgCache::GetFromPage( pPg, m_nOffset >> 2 ) : STG_EOF; } return nPg; } |