[Bug 47497] New: "Unhandled page fault on write access" after upgrading to 4.12.1

https://bugs.winehq.org/show_bug.cgi?id=47497

Bug ID: 47497
           Summary: "Unhandled page fault on write access" after upgrading
                    to 4.12.1
           Product: Wine
           Version: 4.12.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

After upgrading from 4.11.1 to 4.12.1 (in arch linux x64) every Windows program
I start in wine shows a popup with the message "A program on your system has
crashed, but WineDbg was unable to attach to the process".

If I start any programs in the terminal this is what I get:

WinMerge
wine: Unhandled page fault on write access to 0x00000000 at address
0x7fe1d7b8a235 (thread 000b), starting debugger...

IrfanView
wine: Unhandled page fault on write access to 0x00000000 at address
0x7f78b2e53235 (thread 000b), starting debugger...

and wine itself...
wine: Unhandled page fault on write access to 0x00000000 at address
0x7f5aae061235 (thread 000b), starting debugger...

Apart from the popup or error message, programs seem to work normally.

If go back to 4.11.1 everything works fine.