[Wayland-bugs] [Bug 73711] New: Invalid user data pointer passed to "pointer_handle_enter"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73711

          Priority: medium
            Bug ID: 73711
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: Invalid user data pointer passed to
                    "pointer_handle_enter"
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: gabomdq at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: weston
           Product: Wayland

While testing the Wayland backend for SDL2 I noticed a repeatable problem with
the user data pointer passed back to the pointer listeners.
When the mouse enters the application, the corresponding callback is fired
(pointer_handle_enter in our case), but the first parameter is invalid (it
seems to be consistently 0xffffffffc). The rest of the parameters seem sane.

This error does not happen with Wayland/Weston 1.3, but it is present in 1.3.91
and the latest from git.

The invalid pointer eventually produces a segfault.

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