From 9a72716fe4fd9c183cd86a6c6d3a75c1d5b02f0b Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Wed, 29 May 2019 14:42:46 +0200
Subject: [PATCH] Check the result of the dynamic pointer cast in
 getSerialFromRecords()

Reported by Coverity (CID 1401665).
---
 pdns/ixfrutils.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pdns/ixfrutils.cc b/pdns/ixfrutils.cc
index e20cfe666..9ff93bbab 100644
--- a/pdns/ixfrutils.cc
+++ b/pdns/ixfrutils.cc
@@ -99,8 +99,10 @@ uint32_t getSerialFromRecords(const records_t& records, DNSRecord& soaret)
 
   for(auto iter = found.first; iter != found.second; ++iter) {
     auto soa = std::dynamic_pointer_cast<SOARecordContent>(iter->d_content);
-    soaret = *iter;
-    return soa->d_st.serial;
+    if (soa) {
+      soaret = *iter;
+      return soa->d_st.serial;
+    }
   }
   return 0;
 }
-- 
2.40.0