From 11fd7aed2a5594405e14b2b58757c61460372b36 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Mon, 11 Nov 2019 09:38:44 +0100
Subject: [PATCH] Kernel: open() with a zero-length path should fail with
 EINVAL

---
 Kernel/Process.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 35e1b81995a..54afa1eadd2 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -1348,6 +1348,8 @@ int Process::sys$open(const Syscall::SC_open_params* params)
     if (!validate_read_typed(params))
         return -EFAULT;
     auto& [path, path_length, options, mode] = *params;
+    if (!path_length)
+        return -EINVAL;
     if (!validate_read(path, path_length))
         return -EFAULT;
 #ifdef DEBUG_IO