From b8a5155d17d141bcb2d5c55a9589077cdf53ef17 Mon Sep 17 00:00:00 2001
From: ParantezTech <12572227+par274@users.noreply.github.com>
Date: Tue, 6 Oct 2026 13:44:48 +0300
Subject: [PATCH] [Kernel] Validate pthread stack bounds before reporting them

Co-authored-by: Sekai <140012992+igettingit@users.noreply.github.com>
---
 .../Kernel/KernelPthreadExtendedCompatExports.cs             | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/SharpEmu.Libs/Kernel/KernelPthreadExtendedCompatExports.cs b/src/SharpEmu.Libs/Kernel/KernelPthreadExtendedCompatExports.cs
index 16b86ca..08a64ae 100644
--- a/src/SharpEmu.Libs/Kernel/KernelPthreadExtendedCompatExports.cs
+++ b/src/SharpEmu.Libs/Kernel/KernelPthreadExtendedCompatExports.cs
@@ -574,6 +574,11 @@ public static class KernelPthreadExtendedCompatExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+	private static bool IsValidStackBounds(ulong stackAddress, ulong stackSize) =>
+		stackAddress != 0 &&
+		stackSize != 0 &&
+		stackAddress <= ulong.MaxValue - stackSize;
+
 	private static bool TryInferNativeGuestStack(ulong stackPointer, out ulong stackAddress)
 	{
 		stackAddress = 0;