From 6d3cfa2c7abf1acf9f4f3aee7a7ed57dde466711 Mon Sep 17 00:00:00 2001
From: SChernykh <sergey.v.chernykh@gmail.com>
Date: Mon, 23 Aug 2021 23:08:46 +0200
Subject: [PATCH] Couple more sanity checks

---
 src/side_chain.cpp     | 5 +++++
 src/stratum_server.cpp | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/src/side_chain.cpp b/src/side_chain.cpp
index 8198da4..6f9efb8 100644
--- a/src/side_chain.cpp
+++ b/src/side_chain.cpp
@@ -1118,6 +1118,11 @@ void SideChain::update_chain_tip(PoolBlock* block)
 		return;
 	}
 
+	if (block->m_depth >= m_chainWindowSize) {
+		LOGINFO(5, "Trying to update chain tip to a block with depth " << block->m_depth << ". Ignoring it.");
+		return;
+	}
+
 	if (is_longer_chain(m_chainTip, block)) {
 		difficulty_type diff;
 		if (get_difficulty(block, m_difficultyData, diff)) {
diff --git a/src/stratum_server.cpp b/src/stratum_server.cpp
index f6ec25f..7cf38ee 100644
--- a/src/stratum_server.cpp
+++ b/src/stratum_server.cpp
@@ -100,6 +100,10 @@ void StratumServer::on_block(const BlockTemplate& block)
 		m_blobsQueue.push_back(blobs_data);
 	}
 
+	if (uv_is_closing(reinterpret_cast<uv_handle_t*>(&m_blobsAsync))) {
+		return;
+	}
+
 	const int err = uv_async_send(&m_blobsAsync);
 	if (err) {
 		LOGERR(1, "uv_async_send failed, error " << uv_err_name(err));