[Bug 36664] New: Unable to run anything when with kernel version 3.14 and wine configured as Windows 98

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=36664

            Bug ID: 36664
           Summary: Unable to run anything when with kernel version 3.14
                    and wine configured as Windows 98
           Product: Wine
           Version: 1.7.19
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: doragasu at hotmail.com

Recently a security issue was fixed on Linux 3.14 kernel for x86_64 (and is
being backported to previous versions as well). The security fix unfortunately
caused win16 software to stop working, but 32 bit software is supposed to not
be affected. This is being discussed here:
http://forum.winehq.org/viewtopic.php?f=8&t=22568

The problem is configuring Wine as Windows 9x causes this error to appear even
when trying to run 32 bit Windows applications: if you use a kernel with this
security flaw fixed and configure Wine in Windows 9x mode, nothing works
anymore, not even winecfg.

To reproduce the problem you need a Linux box running a 64-bit 3.14 kernel (I'm
running up-to-date Archlinux). Then follow these steps:

1.- Create a fresh wine prefix:

$ WINEARCH=win32 WINEPREFIX=/home/jalon/wine/test wineboot

2.- Run winecfg:

$ WINEPREFIX=/home/jalon/wine/test winecfg

3.- In winecfg, in the default tab (Applications), select "Windows 98" in the
"Windows Version" combo box and then click "OK".

4.- Try to run any 32 bit application (e.g. wineboot as in step 1):

$ WINEPREFIX=/home/jalon/wine/test wineboot

The application will not start, wineboot.exe will be freezed using 100% CPU,
and these messages will be printed in the terminal:

modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument
err:process:__wine_kernel_init boot event wait timed out
modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument
modify_ldt: Invalid argument

As winecfg cannot be started anymore in this prefix, the only way to revert it
to a working configuration is manually editing the registry and removing the
Windows 98 config entry, so this bug is critical because might render existing
wine prefixes useless if user sets Windows version to Windows 9x (and maybe
also other versions like Windows Me, but I have not tested it).

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