ofz#39515 avoid Integer-overflow

Change-Id: I8bef8e19f066883d5fc731a1c7b7cd85948ae5c5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/122968
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/connectivity/source/commontools/dbconversion.cxx b/connectivity/source/commontools/dbconversion.cxx
index 6a2e21191fa4..e7df86d39215 100644
--- a/connectivity/source/commontools/dbconversion.cxx
+++ b/connectivity/source/commontools/dbconversion.cxx
@@ -377,6 +377,14 @@ namespace dbtools
 
     css::util::DateTime DBTypeConversion::toDateTime(const double dVal, const css::util::Date& _rNullDate)
     {
+        css::util::DateTime aRet;
+
+        if (!std::isfinite(dVal))
+        {
+            SAL_WARN("connectivity.commontools", "DateTime has invalid value: " << dVal);
+            return aRet;
+        }
+
         css::util::Date aDate = toDate(dVal, _rNullDate);
         // there is not enough precision in a double to have both a date
         // and a time up to nanoseconds -> limit to microseconds to have
@@ -384,8 +392,6 @@ namespace dbtools
         // 12:59:59.999999790
         css::util::Time aTime = toTime(dVal, 6);
 
-        css::util::DateTime aRet;
-
         aRet.Day          = aDate.Day;
         aRet.Month        = aDate.Month;
         aRet.Year         = aDate.Year;