[Bug 52101] New: In UDEV lnxev mode the winedevice.exe process of winebus.sys crashes on a keypress from the keyboard.

WineHQ Bugzilla wine-bugs at winehq.org
Wed Nov 24 22:14:27 CST 2021


https://bugs.winehq.org/show_bug.cgi?id=52101

            Bug ID: 52101
           Summary: In UDEV lnxev mode the winedevice.exe process of
                    winebus.sys crashes on a keypress from the keyboard.
           Product: Wine
           Version: 6.22
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: hid
          Assignee: wine-bugs at winehq.org
          Reporter: logos128 at gmail.com
                CC: rbernon at codeweavers.com
      Distribution: ArchLinux

Created attachment 71121
  --> https://bugs.winehq.org/attachment.cgi?id=71121
winebus_crash_v6.22.log.tar.gz

It happens only on an user account with administrator rights (superuser, etc.).
As it crashes on a keypress, this makes pretty difficult attaching a debugger
to the crashing process :)

Found out that lnxev backend doesn't add normal keys to the staged report
descriptor, which makes any usb keyboard appear with an empty Input report.
The actual crash happens in winebus.sys/main.c process_hid_report(), when it
tries to resolve the ext->collection_desc.ReportIDs[0].ReportID.

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