Correct kernel stack base calculation for downward growing stacks

2026-03-31 18:59:59 +02:00
parent 987b8f45d7
commit d834b7e0c8
2 changed files with 6 additions and 7 deletions
--- a/xtoskrnl/ar/i686/procsup.cc
+++ b/xtoskrnl/ar/i686/procsup.cc
@@ -154,9 +154,9 @@ AR::ProcSup::InitializeProcessor(IN PVOID ProcessorStructures)
        Gdt = InitialGdt;
        Idt = InitialIdt;
        Tss = &InitialTss;
-        KernelBootStack = &BootStack;
-        KernelFaultStack = &FaultStack;
-        KernelNmiStack = &NmiStack;
+        KernelBootStack = (PVOID)((ULONG_PTR)&BootStack + KERNEL_STACK_SIZE);
+        KernelFaultStack = (PVOID)((ULONG_PTR)&FaultStack + KERNEL_STACK_SIZE);
+        KernelNmiStack = (PVOID)((ULONG_PTR)&NmiStack + KERNEL_STACK_SIZE);
        ProcessorBlock = &InitialProcessorBlock;
    }