From 505a7ec9065e015d81414dfbf07ee4a69ece05da Mon Sep 17 00:00:00 2001
From: DaniPopes <57450786+DaniPopes@users.noreply.github.com>
Date: Tue, 21 Nov 2023 00:22:57 +0100
Subject: [PATCH] fix(evm): don't panic on short calldata

---
 crates/evm/evm/src/executors/fuzz/mod.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/crates/evm/evm/src/executors/fuzz/mod.rs b/crates/evm/evm/src/executors/fuzz/mod.rs
index c92f0e21cfb4..3759962932a6 100644
--- a/crates/evm/evm/src/executors/fuzz/mod.rs
+++ b/crates/evm/evm/src/executors/fuzz/mod.rs
@@ -166,8 +166,11 @@ impl<'a> FuzzedExecutor<'a> {
                 let reason = reason.to_string();
                 result.reason = if reason.is_empty() { None } else { Some(reason) };
 
-                let args =
-                    func.abi_decode_input(&calldata.as_ref()[4..], false).unwrap_or_default();
+                let args = if let Some(data) = calldata.get(4..) {
+                    func.abi_decode_input(data, false).unwrap_or_default()
+                } else {
+                    vec![]
+                };
                 result.counterexample = Some(CounterExample::Single(BaseCounterExample {
                     sender: None,
                     addr: None,