Fix crash with empty ScheduledDowntime 'ranges' attribute

fixes #11158

diff --git a/lib/icinga/scheduleddowntime.cpp b/lib/icinga/scheduleddowntime.cpp
index c67bb10b304e3991af370cc03a3694c47d631585..4c03f45c9aee71fa968f05543411436b9d4e067f 100644 (file)
--- a/lib/icinga/scheduleddowntime.cpp
+++ b/lib/icinga/scheduleddowntime.cpp
@@ -131,6 +131,9 @@ std::pair<double, double> ScheduledDowntime::FindNextSegment(void)
 
        Dictionary::Ptr ranges = GetRanges();
 
+       if (!ranges)
+               return std::make_pair(0, 0);
+
        Array::Ptr segments = new Array();
 
        Dictionary::Ptr bestSegment;