Alexandre Julliard : ntdll: Avoid crash on shutting down partially initialized thread.

[Alexandre Julliard]

Module: wine
Branch: oldstable
Commit: a59337fb7e0d876dc90625dcd3244c04fcb0bf32
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a59337fb7e0d876dc90625dcd...

Author: Alexandre Julliard 
Date:   Sun Jun 27 19:32:48 2021 +0200

ntdll: Avoid crash on shutting down partially initialized thread.

Signed-off-by: Alexandre Julliard 
(cherry picked from commit 364099f528f83f0056f00178d9be6fe332692dc7)
Signed-off-by: Michael Stefaniuc

---

dlls/ntdll/loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 1f8e6c24400..35527119eae 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -3230,7 +3230,7 @@ void WINAPI LdrShutdownThread(void)
     if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.DllBase, DLL_THREAD_DETACH );

RtlAcquirePebLock();
-    RemoveEntryList( &NtCurrentTeb()->TlsLinks );
+    if (NtCurrentTeb()->TlsLinks.Flink) RemoveEntryList( &NtCurrentTeb()->TlsLinks );
     if ((pointers = NtCurrentTeb()->ThreadLocalStoragePointer))
     {
         for (i = 0; i < tls_module_count; i++) RtlFreeHeap( GetProcessHeap(), 0, pointers[i] );