From b1fb8bb18c3123c8b53fb1708d1103d66d516c12 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C4=99drzej=20Stuczy=C5=84ski?=
 <jedrzej.stuczynski@gmail.com>
Date: Tue, 7 Mar 2023 09:51:18 +0000
Subject: [PATCH] Validating new interval config parameters to prevent division
 by zero

---
 contracts/mixnet/src/interval/transactions.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/contracts/mixnet/src/interval/transactions.rs b/contracts/mixnet/src/interval/transactions.rs
index 1246aea2ae..0392368389 100644
--- a/contracts/mixnet/src/interval/transactions.rs
+++ b/contracts/mixnet/src/interval/transactions.rs
@@ -327,6 +327,14 @@ pub(crate) fn try_update_interval_config(
 ) -> Result<Response, MixnetContractError> {
     ensure_is_owner(info.sender, deps.storage)?;
 
+    if epochs_in_interval == 0 {
+        return Err(MixnetContractError::EpochsInIntervalZero);
+    }
+
+    if epoch_duration_secs == 0 {
+        return Err(MixnetContractError::EpochDurationZero);
+    }
+
     let interval = storage::current_interval(deps.storage)?;
     if force_immediately || interval.is_current_interval_over(&env) {
         change_interval_config(