From 8e543195b18b51ca193ceaf31d671368d7744032 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Fri, 17 Apr 2026 23:09:32 +0300
Subject: [PATCH] Kernel: Check for null in pthread_join

---
 kernel/kernel/Process.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/kernel/Process.cpp b/kernel/kernel/Process.cpp
index 3390c0c7..5a1bf1ba 100644
--- a/kernel/kernel/Process.cpp
+++ b/kernel/kernel/Process.cpp
@@ -3399,7 +3399,8 @@ namespace Kernel
 		{
 			if (auto ret = check_thread(); ret.has_value())
 			{
-				TRY(write_to_user(user_value, &ret.value(), sizeof(void*)));
+				if (user_value != nullptr)
+					TRY(write_to_user(user_value, &ret.value(), sizeof(void*)));
 				return 0;
 			}