Bug#983025: libqt5widgets5: Segfault with QGLWidget class. Fixed Upstream
El sábado, 20 de marzo de 2021 19:12:32 (CET) Dmitry Shachnev escribió:
> Control: severity -1 important
> Control: tags -1 - newcomer
> Control: forwarded -1 https://bugreports.qt.io/browse/QTBUG-86582
>
> ¡Hola Alejandro!
>
> On Thu, Feb 18, 2021 at 11:59:56AM +0100, Alejandro Lorenzo wrote:
> > Package: libqt5widgets5
> > Version: 5.15.2+dfsg-4
> > Severity: critical
> > Tags: upstream newcomer
> > Justification: breaks unrelated software
> >
> > Dear Maintainer,
> >
> > Recently i found a bug in QGLWidget (one of the widgets included in
> > libqt5widgets5) that creates a segfault. This bug was accepted as upstream
> > bug 86582
> >
> > (https://bugreports.qt.io/browse/QTBUG-86582)
> >
> > It was confirmed and fixed by the Qt people, unfortunately, it has been
> > committed to the 5.15 LTS branch of their development which is no longer
> > accessible to the OpenSource licensees
> >
> > QGLWidget has been a deprecated Widget for some time now, and many
> > software
> > changed to QOpenGLWidget alternative, which does not exhibit this problem,
> > but other pieces of the debian system (e.g. libqtgstreamer; also
> > deprecated
> > but still in debian repos) uses it.
>
> Can you please tell if any applications in Debian repos are affected by this
> bug? You mentioned libqtgstreamer but it's a library — do you know if there
> is a concrete application that can be used to reproduce that crash?
>
If you want to reproduce the crash, you can use a very small concept
application i submitted to the original bug report upstream. It is a very
easily compiled application that will trigger the bug.
If the question is about any other software that might trigger this that is
already in the repos.... i don't know of any from the top of my mind.
> It is unlikely that we will be able to fix it, provided that upstream patch
> is not publicly available. So I am downgrading severity to make this bug not
> block the release of Debian Bullseye. This bug does not satisfy the
> criteria for critical anyway, because not the whole libqt5widgets5 library
> is broken, but only a specific use-case of it (which is also a deprecated
> one).
You probably know better than me :D
> Also I am removing the newcomer tag — newcomers won't have enough
> knowledge to be able to fix it.
>
Ok
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