From 1b3cac2f42ea8dd9026b541bc705f5909fef71ed Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Tue, 21 Jan 2020 11:42:28 +0100
Subject: [PATCH] Kernel: Don't forget about unveiled paths with zero
 permissions

We need to keep these around, otherwise the calling process can remove
and re-add a path to increase its permissions.
---
 Kernel/Process.cpp | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 1bc28a11d1..6be807edaa 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -4657,10 +4657,6 @@ int Process::sys$unveil(const Syscall::SC_unveil_params* user_params)
         if (unveiled_path.path == path.value()) {
             if (new_permissions & ~unveiled_path.permissions)
                 return -EPERM;
-            if (!new_permissions) {
-                m_unveiled_paths.remove(i);
-                return 0;
-            }
             unveiled_path.permissions = new_permissions;
             return 0;
         }