From 112393b38a472170708c176e87bc3c075109292a Mon Sep 17 00:00:00 2001
From: Brian Gianforcaro <bgianf@serenityos.org>
Date: Tue, 11 May 2021 03:53:38 -0700
Subject: [PATCH] Kernel: Make Thread::try_create API OOM safe

---
 Kernel/Thread.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Kernel/Thread.cpp b/Kernel/Thread.cpp
index c1cc4711abf..8696ec8e3c6 100644
--- a/Kernel/Thread.cpp
+++ b/Kernel/Thread.cpp
@@ -41,7 +41,12 @@ KResultOr<NonnullRefPtr<Thread>> Thread::try_create(NonnullRefPtr<Process> proce
     if (!kernel_stack_region)
         return ENOMEM;
     kernel_stack_region->set_stack(true);
-    return adopt_ref(*new Thread(move(process), kernel_stack_region.release_nonnull()));
+
+    auto thread = adopt_ref_if_nonnull(new Thread(move(process), kernel_stack_region.release_nonnull()));
+    if (!thread)
+        return ENOMEM;
+
+    return thread.release_nonnull();
 }
 
 Thread::Thread(NonnullRefPtr<Process> process, NonnullOwnPtr<Region> kernel_stack_region)