From c13cdcdd36f8de2f6ce4ba1196cd882a4064771e Mon Sep 17 00:00:00 2001
From: Walther Chen <walther.chen@gmail.com>
Date: Tue, 17 Dec 2024 16:15:24 +0700
Subject: [PATCH] in new_struct_to_str, fix uaf

---
 lib/std/core/string.c3 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/std/core/string.c3 b/lib/std/core/string.c3
index 31275f81e..aa17a0cb3 100644
--- a/lib/std/core/string.c3
+++ b/lib/std/core/string.c3
@@ -757,8 +757,8 @@ macro String new_struct_to_str(x, Allocator allocator = allocator::heap())
 	{
 		s.new_init(allocator: mem);
 		io::fprint(&s, x)!!;
+		return s.copy_str(allocator);
 	};
-	return s.copy_str(allocator);
 }
 
-macro String temp_struct_to_str(x) => new_struct_to_str(x, allocator::temp());
\ No newline at end of file
+macro String temp_struct_to_str(x) => new_struct_to_str(x, allocator::temp());