From 751a549ea55cb4a8e20ad38cd0e20f49858f7c80 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juli=C3=A1n=20Gonz=C3=A1lez=20Calder=C3=B3n?=
 <gonzalezcalderonjulian@gmail.com>
Date: Thu, 17 Oct 2024 12:39:09 -0300
Subject: [PATCH] Fix bytes31 bug

---
 runtime/src/lib.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index 7297f00c8..af74f3dd1 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -1056,7 +1056,13 @@ pub mod trace_dump {
                 _ => unreachable!(),
             },
             CoreTypeConcrete::Bytes31(_) => {
-                Value::Bytes31(Felt::from_bytes_le(value_ptr.cast().as_ref()))
+                let original_data: [u8; 31] = value_ptr.cast().read();
+                let mut data = [0u8; 32];
+                for (i, v) in original_data.into_iter().enumerate() {
+                    data[i] = v
+                }
+
+                Value::Bytes31(Felt::from_bytes_le(&data))
             }
         }
     }