added asserts to check m_addr_known when it's used

Author: naumenkogs

src/net.h

@@ -884,6 +884,7 @@ class CNode
 
     void AddAddressKnown(const CAddress& _addr)
     {
+        assert(m_addr_known);
         m_addr_known->insert(_addr.GetKey());
     }
 
@@ -892,6 +893,7 @@ class CNode
         // Known checking here is only to save space from duplicates.
         // SendMessages will filter it again for knowns that were added
         // after addresses were pushed.
+        assert(m_addr_known);
         if (_addr.IsValid() && !m_addr_known->contains(_addr.GetKey())) {
             if (vAddrToSend.size() >= MAX_ADDR_TO_SEND) {
                 vAddrToSend[insecure_rand.randrange(vAddrToSend.size())] = _addr;

src/net_processing.cpp

@@ -3561,6 +3561,7 @@ bool PeerLogicValidation::SendMessages(CNode* pto)
             pto->nNextAddrSend = PoissonNextSend(nNow, AVG_ADDRESS_BROADCAST_INTERVAL);
             std::vector<CAddress> vAddr;
             vAddr.reserve(pto->vAddrToSend.size());
+            assert(pto->m_addr_known);
             for (const CAddress& addr : pto->vAddrToSend)
             {
                 if (!pto->m_addr_known->contains(addr.GetKey()))