user32_winetest:dialog crashes

Entered debugger on first-chance exception (Exception Code: 0xc0000005) (Page Fault)

Memory at 0x00000004 could not be written: Page not present.

kdb:> bt

Eip:

<ntdll.dll:8277>

Frames:

<ntdll.dll:6cb8>

<ntdll.dll:93ee>

<kernel32.dll:1ee3f>

<kernel32.dll:1edc4>

<user32.dll:29c24>

<user32_winetest.exe:15c82>

<user32_winetest.exe:16bc3>

<user32_winetest.exe:806db>

<user32_winetest.exe:8084d>

<user32_winetest.exe:81241>

<user32_winetest.exe:8134c>

<kernel32.dll:249b4>

<00000000>

dll/win32/user32/windows/dialog.c:1751 (DialogBoxParamA@20)

dll/win32/kernel32/misc/res.c:1053 (FindResourceA@12)

dll/win32/kernel32/misc/res.c:1090 (FindResourceExA@16)

lib/rtl/unicode.c:86 (RtlAnsiStringToUnicodeString@12)

dll/ntdll/rtl/libsupp.c:152 (RtlpAllocateMemory@8)