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wow64: Preserve TEB exception frame in Wow64KiUserCallbackDispatcher.

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Jacek Caban 2022-07-30 15:57:08 +02:00 committed by Alexandre Julliard
parent de5f640abf
commit 21a3690ad1
1 changed files with 3 additions and 0 deletions
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3
dlls/wow64/syscall.c
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@ -850,6 +850,8 @@ void WINAPI Wow64ApcRoutine( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3, CON
NTSTATUS WINAPI Wow64KiUserCallbackDispatcher( ULONG id, void *args, ULONG len,
void **ret_ptr, ULONG *ret_len )
{
TEB32 *teb32 = (TEB32 *)((char *)NtCurrentTeb() + NtCurrentTeb()->WowTebOffset);
ULONG teb_frame = teb32->Tib.ExceptionList;
struct user_callback_frame frame;
frame.prev_frame = NtCurrentTeb()->TlsSlots[WOW64_TLS_USERCALLBACKDATA];
@ -916,6 +918,7 @@ NTSTATUS WINAPI Wow64KiUserCallbackDispatcher( ULONG id, void *args, ULONG len,
break;
}
teb32->Tib.ExceptionList = teb_frame;
NtCurrentTeb()->TlsSlots[WOW64_TLS_USERCALLBACKDATA] = frame.prev_frame;
NtCurrentTeb()->TlsSlots[WOW64_TLS_TEMPLIST] = frame.temp_list;
return frame.status;