From d41beab4a8e003064203862011994f7abfddf12e Mon Sep 17 00:00:00 2001
From: Mathew John Roberts <auronandace@googlemail.com>
Date: Sun, 13 Feb 2022 16:31:41 +0000
Subject: [PATCH] Make execve(2) require 1 <= argc.

---
 kernel/process.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/process.cpp b/kernel/process.cpp
index 396659d8..601745a3 100644
--- a/kernel/process.cpp
+++ b/kernel/process.cpp
@@ -850,6 +850,9 @@ int Process::Execute(const char* programname, const uint8_t* program,
 	assert(envc != INT_MAX);
 	assert(CurrentProcess() == this);
 
+	if ( argc == 0 )
+		return errno = EINVAL, -1;
+
 	char* programname_clone = String::Clone(programname);
 	if ( !programname_clone )
 		return -1;