From 31c645920116d05d4cf19bf04ed098d61ac338b9 Mon Sep 17 00:00:00 2001
From: Patrick Pelissier <Patrick.Pelissier@gmail.com>
Date: Sun, 6 Aug 2017 23:12:29 +0200
Subject: [PATCH] Fix overflow issue.

---
 m-string.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/m-string.h b/m-string.h
index efa494f7..d462a6bb 100644
--- a/m-string.h
+++ b/m-string.h
@@ -148,8 +148,13 @@ stringi_fit2size (string_t v, size_t size)
   // is not fullfilled.
   if (size > v->alloc) {
     size_t alloc = size < 16 ? 16 : (size + size / 2);
+    if (M_UNLIKELY (alloc <= v->alloc)) {
+      M_MEMORY_FULL(sizeof (char) * alloc);
+      // NOTE: Return is broken...
+      return;
+    }
     char *ptr = M_MEMORY_REALLOC (char, v->ptr, alloc);
-    if (ptr == NULL) {
+    if (M_UNLIKELY (ptr == NULL)) {
       M_MEMORY_FULL(sizeof (char) * alloc);
       // NOTE: Return is broken...
       return;