From d05fe48bfdd89956c0ebd115dca0fb115aa28dd6 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 4 Jun 2025 12:55:43 -0300
Subject: Loading a binary chunk should not break assertions

Although the execution of a bad binary chunk can crash the interpreter,
simply loading it should be safe.
---
 lundump.c        | 2 +-
 manual/manual.of | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/lundump.c b/lundump.c
index fccded7d..b69ec336 100644
--- a/lundump.c
+++ b/lundump.c
@@ -234,7 +234,7 @@ static void loadConstants (LoadState *S, Proto *f) {
         f->source = NULL;
         break;
       }
-      default: lua_assert(0);
+      default: error(S, "invalid constant");
     }
   }
 }
diff --git a/manual/manual.of b/manual/manual.of
index a6361fa2..0d473eed 100644
--- a/manual/manual.of
+++ b/manual/manual.of
@@ -1402,6 +1402,9 @@ Chunks can also be precompiled into binary form;
 see the program @idx{luac} and the function @Lid{string.dump} for details.
 Programs in source and compiled forms are interchangeable;
 Lua automatically detects the file type and acts accordingly @seeF{load}.
+Be aware that, unlike source code,
+the execution of maliciously crafted
+bytecode can crash the interpreter.
 
 }
 
-- 
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