[cairo-bugs] [Bug 93891] New: Hang when recursing in _cairo_scaled_font_reset_cache()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93891

            Bug ID: 93891
           Summary: Hang when recursing in
                    _cairo_scaled_font_reset_cache()
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: chris at chris-wilson.co.uk
          Reporter: hpj at copyleft.no
        QA Contact: cairo-bugs at cairographics.org

The destruction of a scaled font can indirectly trigger the destruction
of a second scaled font, causing the global cache to be locked twice in
the same thread.

This can cause applications to deadlock when rendering certain PDF documents.

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