From 585e021c7f3e89af08aa10215649575f6b1fd14e Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Mon, 25 May 2026 02:19:56 +0300
Subject: [PATCH] Kernel: Don't panic when stack trace leads to GPF

if there is was a uncanonical address in stack trace we ended up in an
infinite recursive loop trying to print stack trace
---
 kernel/kernel/IDT.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/kernel/kernel/IDT.cpp b/kernel/kernel/IDT.cpp
index b8fb6795..f9fe2480 100644
--- a/kernel/kernel/IDT.cpp
+++ b/kernel/kernel/IDT.cpp
@@ -256,6 +256,18 @@ namespace Kernel
 
 				break;
 			}
+			case ISR::GeneralProtectionFault:
+			{
+				const uint8_t* ip = reinterpret_cast<const uint8_t*>(interrupt_stack->ip);
+				for (const auto& safe_user : s_safe_user_page_faults)
+				{
+					if (ip < safe_user.ip_start || ip >= safe_user.ip_end)
+						continue;
+					interrupt_stack->ip = reinterpret_cast<vaddr_t>(safe_user.ip_fault);
+					return;
+				}
+				break;
+			}
 			case ISR::DeviceNotAvailable:
 			{
 				if (pid == 0 || !Thread::current().is_userspace())