Re: [stable] binder: fix race between munmap() and direct reclaim

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On Wed, Jun 05, 2019 at 09:43:53AM -0700, Todd Kjos wrote:
> On Tue, Jun 4, 2019 at 7:50 AM Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > On Fri, May 31, 2019 at 01:09:53PM -0700, Todd Kjos wrote:
> > > Greg,
> > >
> > > I'm really confused. [1] was my submittal to stable for "binder: fix
> > > race between munmap() and direct reclaim" which I think looks correct.
> > >
> > > For "binder: fix handling of misaligned binder object", I only
> > > submitted to LKML [2]. But then I see [3] for 4.14 (that looks
> > > incorrect as Ben pointed out).
> > >
> > > So the result is that fix is present in the LTS trees where it is
> > > needed, but it has the wrong commit message and headline.
> > >
> > > I agree with Ben that the cleanest approach is to revert and apply the
> > > correct version (to 4.14, 4.19, 5.0). I think the correct version is
> > > the one I sent [1], but please let me know if you see something I
> > > screwed up or if you need me to do something.
> > >
> > > [1] https://www.spinics.net/lists/stable/msg299033.html
> > > [2] https://lkml.org/lkml/2019/2/14/1235
> > > [3] https://lkml.org/lkml/2019/4/30/650
> >
> > Can you send me a patch series that fixes things up properly?  I really
> > don't know exactly what to do here, sorry.
> 
> Sent. 2 patches for each of 4.14, 4.19, 5.0 (1/2=revert of bad patch,
> 2/2 apply good patch). Code ends up the same.

Thanks for that, I'll queue them up soon.

greg k-h



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