Paul Gofman : ntdll: Don't constraint TEB address to 2GB for native x64 process.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1722615b06cba2f04fcd0ca69bbc33d963fb143f
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=1722615b06cba2f04fcd0ca69...

Author: Paul Gofman <pgofman(a)codeweavers.com>
Date:   Thu Nov  4 14:55:42 2021 +0300

ntdll: Don't constraint TEB address to 2GB for native x64 process.

Signed-off-by: Paul Gofman <pgofman(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ntdll/unix/virtual.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/unix/virtual.c b/dlls/ntdll/unix/virtual.c
index 756a7388a22..f62ca1f5f01 100644
--- a/dlls/ntdll/unix/virtual.c
+++ b/dlls/ntdll/unix/virtual.c
@@ -3021,6 +3021,7 @@ NTSTATUS virtual_alloc_teb( TEB **ret_teb )
     void *ptr = NULL;
     NTSTATUS status = STATUS_SUCCESS;
     SIZE_T block_size = signal_stack_mask + 1;
+    BOOL is_wow = !!NtCurrentTeb()->WowTebOffset;
 
     server_enter_uninterrupted_section( &virtual_mutex, &sigset );
     if (next_free_teb)
@@ -3035,7 +3036,7 @@ NTSTATUS virtual_alloc_teb( TEB **ret_teb )
         {
             SIZE_T total = 32 * block_size;
 
-            if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, is_win64 ? 0x7fffffff : 0,
+            if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, is_win64 && is_wow ? 0x7fffffff : 0,
                                                    &total, MEM_RESERVE, PAGE_READWRITE )))
             {
                 server_leave_uninterrupted_section( &virtual_mutex, &sigset );
@@ -3048,7 +3049,7 @@ NTSTATUS virtual_alloc_teb( TEB **ret_teb )
         NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&ptr, 0, &block_size,
                                  MEM_COMMIT, PAGE_READWRITE );
     }
-    *ret_teb = teb = init_teb( ptr, !!NtCurrentTeb()->WowTebOffset );
+    *ret_teb = teb = init_teb( ptr, is_wow );
     server_leave_uninterrupted_section( &virtual_mutex, &sigset );
 
     if ((status = signal_alloc_thread( teb )))