From db2b9fba651670a9c8f86c316f36bc9d9dbb82cc Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Mon, 11 Mar 2019 23:36:17 +0000
Subject: [PATCH] serialization: fail on read_varint error

---
 src/serialization/binary_archive.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/serialization/binary_archive.h b/src/serialization/binary_archive.h
index a0e4eff9d..9f60cf311 100644
--- a/src/serialization/binary_archive.h
+++ b/src/serialization/binary_archive.h
@@ -146,7 +146,8 @@ struct binary_archive<false> : public binary_archive_base<std::istream, false>
   void serialize_uvarint(T &v)
   {
     typedef std::istreambuf_iterator<char> it;
-    tools::read_varint(it(stream_), it(), v); // XXX handle failure
+    if (tools::read_varint(it(stream_), it(), v) < 0)
+      stream_.setstate(std::ios_base::failbit);
   }
 
   void begin_array(size_t &s)