[Wayland-bugs] [Bug 74632] New: wl_shm_pool_resize crashes weston

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74632

          Priority: medium
            Bug ID: 74632
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: wl_shm_pool_resize crashes weston
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: alexander.preisinger at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 1.4.0
         Component: weston
           Product: Wayland

Created attachment 93555
  --> https://bugs.freedesktop.org/attachment.cgi?id=93555&action=edit
Weston GDB Backtrace

wl_shm_pool_resize crashes weston if a wl_buffer from the pool is attached to a
surface and the new size is smaller.

It looks like weston is trying to access memory outside of the new pool size
because it was attached with the old size. Maybe there should be a check if the
pool associated with the buffer has changed.

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