From 43163fe2a07e7935e95e4befa86a82eb488e47dd Mon Sep 17 00:00:00 2001
From: Alessandro Mauri <152968337+ma-ale@users.noreply.github.com>
Date: Mon, 18 Aug 2025 14:35:32 +0200
Subject: [PATCH] Fix out of bounds access when stdout is empty

---
 lib/std/os/subprocess.c3 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/std/os/subprocess.c3 b/lib/std/os/subprocess.c3
index 24aa4b21e..774aa7855 100644
--- a/lib/std/os/subprocess.c3
+++ b/lib/std/os/subprocess.c3
@@ -292,6 +292,7 @@ fn String? execute_stdout_to_buffer(char[] buffer, String[] command_line, SubPro
 	SubProcess process = process::create(command_line, options, environment)!;
 	process.join()!;
 	usz len = process.read_stdout(buffer.ptr, buffer.len)!;
+	if (len == 0) return "";
 	return (String)buffer[:len - 1];
 }
 
@@ -529,4 +530,4 @@ fn bool? SubProcess.is_running(&self)
 		self.join()!;
 		return false;
 	$endif
-}
\ No newline at end of file
+}