Messages in this thread | | | From | Andrey Konovalov <> | Date | Thu, 19 Sep 2019 17:19:12 +0200 | Subject | Re: general protection fault in usb_set_interface |
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On Wed, Sep 18, 2019 at 8:57 PM Alan Stern <stern@rowland.harvard.edu> wrote: > > On Tue, 17 Sep 2019, syzbot wrote: > > > Hello, > > > > syzbot has tested the proposed patch but the reproducer still triggered > > crash: > > WARNING in sysfs_remove_group > > > > ------------[ cut here ]------------ > > sysfs group 'power' not found for kobject 'radio0' > > Andrey: > > Is there any way to tell syzbot to run the reproducer but with only one > device instance (that is, only one dummy-hcd bus)? > > Or can you a new, modified reproducer that will do this?
AFAIU there two bugs here and you've fixed the first one, but the second one gets triggered.
I think the second one got reported separately here:
https://syzkaller.appspot.com/bug?extid=5b9bba68c833c84a1135
That one has a reproducer with a single dummy-hcd, so you can try running your debugging patch against that report.
I'll see if I can run it manually in the meantime.
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