Re: general protection fault in open_rio

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On Tue, Sep 24, 2019 at 4:38 PM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Tue, Sep 24, 2019 at 10:33:12AM -0400, Alan Stern wrote:
> > On Tue, 24 Sep 2019, Andrey Konovalov wrote:
> >
> > > On Tue, Sep 24, 2019 at 4:19 PM syzbot
> > > <syzbot+dbd38fbb686a9681143a@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > > >
> > > > Hello,
> > > >
> > > > syzbot found the following crash on:
> > > >
> > > > HEAD commit:    d9e63adc usb-fuzzer: main usb gadget fuzzer driver
> > > > git tree:       https://github.com/google/kasan.git usb-fuzzer
> > > > console output: https://syzkaller.appspot.com/x/log.txt?x=1602b303600000
> > > > kernel config:  https://syzkaller.appspot.com/x/.config?x=f4fa60e981ee8e6a
> > > > dashboard link: https://syzkaller.appspot.com/bug?extid=dbd38fbb686a9681143a
> > > > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> > > >
> > > > Unfortunately, I don't have any reproducer for this crash yet.
> > > >
> > > > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > > > Reported-by: syzbot+dbd38fbb686a9681143a@xxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > > Most probably the same bug:
> > >
> > > https://syzkaller.appspot.com/bug?extid=745b0dff8028f9488eba
> > >
> > > #syz dup: KASAN: invalid-free in disconnect_rio (2)
> >
> > Even more to the point, a patch was recently posted to the mailing list
> > to remove the rio500 driver entirely:
> >
> >       https://marc.info/?l=linux-usb&m=156925553004947&w=2
>
> I'll be queueing this up and just marking the driver BROKEN on older
> kernels to solve all of these issues :)

#syz fix: USB: rio500: Remove Rio 500 kernel driver



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