Messages in this thread | | | From | Andrey Konovalov <> | Date | Wed, 13 Sep 2017 17:12:24 +0200 | Subject | Re: usb/uwb: GPF in uwbd_start |
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On Tue, Sep 12, 2017 at 9:55 PM, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote: > On Tue, Sep 12, 2017 at 07:10:07PM +0200, Andrey Konovalov wrote: >> Hi! >> >> I've got the following crashes while fuzzing the kernel with syzkaller. >> >> On commit 81a84ad3cb5711cec79f4dd53a4ce026b092c432 (Sep 3). >> >> uwbd_start() calls kthread_run() and checks that the return value in >> not NULL. But the return value is not NULL in case kthread_run() >> fails, it takes the form of ERR_PTR(-EINTR). > > Great, do you want to write a patch for this, or do you want me to?
Just mailed a patch.
> > And I'm guessing you really don't have the real hardware for this > device, right?
I don't have a hardware reproducer, but making it is just a question of effort. There's the Facedancer21 board [1], which can be used to emulate arbitrary USB devices. It's also possible to do this with with something like Raspberry Pi Zero in USB gadget mode through gadgetfs.
[1] https://int3.cc/products/facedancer21
> > thanks, > > greg k-h
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