[Bug 36103] New: kernel32/tests/loader shows lots of invalid reads in thread.c

https://bugs.winehq.org/show_bug.cgi?id=36103

Bug ID: 36103
           Summary: kernel32/tests/loader shows lots of invalid reads in
                    thread.c
           Product: Wine
           Version: 1.7.17
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, testcase
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

==9219== Invalid read of size 4
==9219==    at 0x7BC55D91: MODULE_DllThreadAttach (loader.c:1287)
==9219==    by 0x7BC8E3D2: start_thread (thread.c:423)
==9219==    by 0x4218F92: start_thread (pthread_create.c:309)
==9219==    by 0x431D7ED: clone (clone.S:129)
==9219==  Address 0x611eb04 is on thread 1's stack
==9219==

==9219== Invalid read of size 4
==9219==    at 0x7BC1EAF3: __x86.get_pc_thunk.bx (in
/home/austin/wine-valgrind/dlls/ntdll/ntdll.dll.so)
==9219==    by 0x7BC8E3D2: start_thread (thread.c:423)
==9219==    by 0x4218F92: start_thread (pthread_create.c:309)
==9219==    by 0x431D7ED: clone (clone.S:129)
==9219==  Address 0x611eacc is on thread 1's stack
==9219==

there's also one:
==30099== 2,020 bytes in 1 blocks are possibly lost in loss record 225 of 244
==30099==    at 0x7BC4C735: notify_alloc (heap.c:255)
==30099==    by 0x7BC50F79: RtlAllocateHeap (heap.c:1716)
==30099==    by 0x4E07A19: get_tls_data (test.h:244)
==30099==    by 0x4E07B03: winetest_set_location (test.h:279)
==30099==    by 0x4D836B8: dll_entry_point (loader.c:1433)
==30099==    by 0x7BC52FC0: ??? (loader.c:138)
==30099==    by 0x7BC555FE: MODULE_InitDLL (loader.c:1068)
==30099==    by 0x7BC55DE7: MODULE_DllThreadAttach (loader.c:1281)
==30099==    by 0x7BC8E446: start_thread (thread.c:423)
==30099==    by 0x4EA7BD89: start_thread (in /usr/lib/libpthread-2.18.so)
==30099==    by 0x4E95CA0D: clone (in /usr/lib/libc-2.18.so)
==30099==