[Bug 46341] New: kernel32/tests/pipe.c shows uninitialized memory use

https://bugs.winehq.org/show_bug.cgi?id=46341

Bug ID: 46341
           Summary: kernel32/tests/pipe.c shows uninitialized memory use
           Product: Wine
           Version: 4.0-rc3
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase, valgrind
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Gentoo

../../../tools/runtest -q -P wine -T ../../.. -M kernel32.dll -p
kernel32_test.exe.so pipe && touch pipe.ok
==8919== Syscall param writev(vector[...]) points to uninitialised byte(s)
==8919==    at 0x4356813: writev (writev.c:26)
==8919==    by 0x7BC75457: send_request (server.c:228)
==8919==    by 0x7BC76158: server_call_unlocked (server.c:288)
==8919==    by 0x7BC761AD: wine_server_call (server.c:321)
==8919==    by 0x7BC419E5: server_write_file (file.c:621)
==8919==    by 0x7BC43FCB: NtWriteFile (file.c:1229)
==8919==    by 0x7B43CC9A: WriteFile (file.c:571)
==8919==    by 0x4B16735: _overlapped_write_async (pipe.c:2829)
==8919==    by 0x4B253A5: test_overlapped_transport (pipe.c:3219)
==8919==    by 0x4B277F4: func_pipe (pipe.c:3732)
==8919==    by 0x4B6E8E4: run_test (test.h:617)
==8919==    by 0x4B6F322: main (test.h:701)
==8919==  Address 0x4ea12cc is on thread 1's stack
==8919==  in frame #8, created by test_overlapped_transport (pipe.c:3193)
==8919==  Uninitialised value was created by a stack allocation
==8919==    at 0x4B25220: test_overlapped_transport (pipe.c:3193)
==8919==