From e49863eda13d095b1a78fd4ca0fd3a6a9a17d782 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Tue, 14 Jan 2020 11:07:07 +0100
Subject: [PATCH] Followup fix for embedded bytecode loader.

---
 src/lj_lex.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lj_lex.c b/src/lj_lex.c
index 1c9923cd..0b58c35c 100644
--- a/src/lj_lex.c
+++ b/src/lj_lex.c
@@ -51,6 +51,7 @@ static LJ_NOINLINE LexChar lex_more(LexState *ls)
   if (sz >= LJ_MAX_BUF) {
     if (sz != ~(size_t)0) lj_err_mem(ls->L);
     sz = ~(uintptr_t)0 - (uintptr_t)p;
+    if (sz >= LJ_MAX_BUF) sz = LJ_MAX_BUF-1;
     ls->endmark = 1;
   }
   ls->pe = p + sz;