From d71f0cf5bf4fc449585a4087e5fcf4a8eb443e38 Mon Sep 17 00:00:00 2001
From: Marcin Kozlowski <marcinguy@gmail.com>
Date: Fri, 15 Oct 2021 09:56:26 +0200
Subject: [PATCH] Error message in most likely case of using NONASAN and ASAN
 fuzzers using the same Fuzzer config (#329)

* Error message in most likely case of using NONASAN and ASAN fuzzers using the same Fuzzer config

* Typo

* Changed to panic. Executed cargo fmt
---
 libafl/src/feedbacks/map.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libafl/src/feedbacks/map.rs b/libafl/src/feedbacks/map.rs
index fa6734e2af..d7e4993544 100644
--- a/libafl/src/feedbacks/map.rs
+++ b/libafl/src/feedbacks/map.rs
@@ -242,7 +242,10 @@ where
             .match_name_mut::<MapFeedbackState<T>>(&self.name)
             .unwrap();
 
-        assert!(size <= map_state.history_map.len());
+        if size <= map_state.history_map.len() {
+            panic!("Could be a bug or are you using the same coverage map for NONASAN and ASAN fuzzers? Adjust to use different coverage map for each different config");
+        }
+
         assert!(size <= observer.map().len());
 
         if self.novelties.is_some() {