From ab58b150ef5e41aae31f4f2af35427d45a8cc151 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Thu, 18 Jan 2018 16:54:52 +0000
Subject: p2p: fix picking peers off an empty gray list

---
 src/p2p/net_node.inl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl
index 269a9ba87..f8b96d7a4 100644
--- a/src/p2p/net_node.inl
+++ b/src/p2p/net_node.inl
@@ -1062,7 +1062,10 @@ namespace nodetool
         max_random_index = std::min<uint64_t>(local_peers_count -1, 20);
         random_index = get_random_index_with_fixed_probability(max_random_index);
       } else {
-        random_index = crypto::rand<size_t>() % m_peerlist.get_gray_peers_count();
+        local_peers_count = m_peerlist.get_gray_peers_count();
+        if (!local_peers_count)
+          return false;
+        random_index = crypto::rand<size_t>() % local_peers_count;
       }
 
       CHECK_AND_ASSERT_MES(random_index < local_peers_count, false, "random_starter_index < peers_local.size() failed!!");
-- 
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