From 3453d02b1d1bcd05f8a920f28b2dfb68cab3d64b Mon Sep 17 00:00:00 2001
From: Alwin Berger <alwin.berger@tu-dortmund.de>
Date: Fri, 3 May 2024 13:28:49 +0200
Subject: [PATCH] fix fuzzing loop returning nothing

---
 libafl/src/fuzzer/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libafl/src/fuzzer/mod.rs b/libafl/src/fuzzer/mod.rs
index e3334dec1c..2a2072d9d1 100644
--- a/libafl/src/fuzzer/mod.rs
+++ b/libafl/src/fuzzer/mod.rs
@@ -303,6 +303,10 @@ where
         // But as the state may grow to a few megabytes,
         // for now we won' and the user has to do it (unless we find a way to do this on `Drop`).
 
+        if let None = ret {
+            eprintln!("Warning: fuzzing loop ended with no last element");
+            ret = Some(crate::corpus::CorpusId(0));
+        }
         Ok(ret.unwrap())
     }
 }