ntdll: Initialize dbg_offset and dbg_size (valgrind).

  Syscall param writev(vector[...]) points to uninitialised byte(s)
     at 0x4189DA3: writev (writev.c:26)
     by 0x46A5A0B: send_request (server.c:213)
     by 0x46A5A0B: server_call_unlocked (server.c:273)
     by 0x46A5B4F: wine_server_call (server.c:289)
     by 0x46C996A: virtual_create_builtin_view (virtual.c:2524)
     by 0x4692CB4: dlopen_dll (loader.c:1133)
     by 0x46931CA: open_builtin_file (loader.c:1373)
     by 0x46931CA: open_builtin_file (loader.c:1354)
     by 0x4694559: load_builtin_dll (loader.c:1457)
     by 0x7BC375F2: load_builtin_dll (loader.c:2348)
     by 0x7BC38369: load_dll (loader.c:2705)
     by 0x7BC39E46: import_dll (loader.c:782)
     by 0x7BC36CEC: fixup_imports (loader.c:1138)
     by 0x7BC3BE4B: LdrInitializeThunk (loader.c:3454)
   Address 0x32e390 is on thread 1's stack
   in frame #5, created by open_builtin_file (loader.c:1357)

Signed-off-by: Rémi Bernon <[email protected]>
Signed-off-by: Alexandre Julliard <[email protected]>

dlls/ntdll/unix/loader.c

@@ -1068,6 +1068,8 @@ static void fill_builtin_image_info( void *module, pe_image_info_t *info )
     info->header_size     = nt->OptionalHeader.SizeOfHeaders;
     info->file_size       = nt->OptionalHeader.SizeOfImage;
     info->checksum        = nt->OptionalHeader.CheckSum;
+    info->dbg_offset      = 0;
+    info->dbg_size        = 0;
     info->cpu             = client_cpu;
     info->__pad           = 0;
 }