From 1fad8cc919b2e309d306eedac009508e8fdd171f Mon Sep 17 00:00:00 2001
From: Crypto City <cryptocity@example.com>
Date: Thu, 11 May 2023 11:43:09 +0000
Subject: [PATCH] blockchain: ensure base fee cannot reach 0

reported by sech1
---
 src/cryptonote_core/blockchain.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 6329718c5..35fa77688 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -3710,7 +3710,7 @@ uint64_t Blockchain::get_dynamic_base_fee(uint64_t block_reward, size_t median_b
       div128_64(hi, lo, median_block_weight, &hi, &lo, NULL, NULL);
       assert(hi == 0);
       lo -= lo / 20;
-      return lo;
+      return lo == 0 ? 1 : lo;
     }
     else
     {