From 903f3d06275312aa4000b765d2287339210c61c1 Mon Sep 17 00:00:00 2001
From: practicalswift <practicalswift@users.noreply.github.com>
Date: Mon, 26 Oct 2020 16:27:33 +0000
Subject: fuzz: Check for addrv1 compatibility before using addrv1 serializer

---
 src/test/fuzz/deserialize.cpp | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/test/fuzz/deserialize.cpp b/src/test/fuzz/deserialize.cpp
index b799d3b43b..26c56fbadf 100644
--- a/src/test/fuzz/deserialize.cpp
+++ b/src/test/fuzz/deserialize.cpp
@@ -13,6 +13,7 @@
 #include <key.h>
 #include <merkleblock.h>
 #include <net.h>
+#include <netbase.h>
 #include <node/utxo_snapshot.h>
 #include <primitives/block.h>
 #include <protocol.h>
@@ -44,9 +45,9 @@ struct invalid_fuzzing_input_exception : public std::exception {
 };
 
 template <typename T>
-CDataStream Serialize(const T& obj)
+CDataStream Serialize(const T& obj, const int version = INIT_PROTO_VERSION)
 {
-    CDataStream ds(SER_NETWORK, INIT_PROTO_VERSION);
+    CDataStream ds(SER_NETWORK, version);
     ds << obj;
     return ds;
 }
@@ -79,9 +80,9 @@ void DeserializeFromFuzzingInput(const std::vector<uint8_t>& buffer, T& obj)
 }
 
 template <typename T>
-void AssertEqualAfterSerializeDeserialize(const T& obj)
+void AssertEqualAfterSerializeDeserialize(const T& obj, const int version = INIT_PROTO_VERSION)
 {
-    assert(Deserialize<T>(Serialize(obj)) == obj);
+    assert(Deserialize<T>(Serialize(obj, version)) == obj);
 }
 
 } // namespace
@@ -183,7 +184,10 @@ void test_one_input(const std::vector<uint8_t>& buffer)
 #elif NETADDR_DESERIALIZE
         CNetAddr na;
         DeserializeFromFuzzingInput(buffer, na);
-        AssertEqualAfterSerializeDeserialize(na);
+        if (na.IsAddrV1Compatible()) {
+            AssertEqualAfterSerializeDeserialize(na);
+        }
+        AssertEqualAfterSerializeDeserialize(na, INIT_PROTO_VERSION | ADDRV2_FORMAT);
 #elif SERVICE_DESERIALIZE
         CService s;
         DeserializeFromFuzzingInput(buffer, s);
-- 
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