From a1686db2de26aa545121faf1c3a06219d01e3614 Mon Sep 17 00:00:00 2001
From: Tim Schumacher <timschumi@gmx.de>
Date: Tue, 12 Apr 2022 01:00:22 +0200
Subject: [PATCH] Kernel: Skip setting region name if none is given to mmap

This keeps us from accidentally overwriting an already set region name,
for example when we are mapping a file (as, in this case, the file name
is already stored in the region).
---
 Kernel/Syscalls/mmap.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Kernel/Syscalls/mmap.cpp b/Kernel/Syscalls/mmap.cpp
index 896616cd7f..930eaeffdf 100644
--- a/Kernel/Syscalls/mmap.cpp
+++ b/Kernel/Syscalls/mmap.cpp
@@ -240,7 +240,8 @@ ErrorOr<FlatPtr> Process::sys$mmap(Userspace<Syscall::SC_mmap_params const*> use
         region->set_shared(true);
     if (map_stack)
         region->set_stack(true);
-    region->set_name(move(name));
+    if (name)
+        region->set_name(move(name));
 
     PerformanceManager::add_mmap_perf_event(*this, *region);