linux-kernel - Re: WARNING: ath10k USB support is incomplete, don't expect anything to work!

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Message-ID: <20190509115631.GB18400@kroah.com>
Date:   Thu, 9 May 2019 13:56:31 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     syzbot <syzbot+c1b25598aa60dcd47e78@...kaller.appspotmail.com>
Cc:     andreyknvl@...gle.com, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: WARNING: ath10k USB support is incomplete, don't expect anything
 to work!

On Thu, May 09, 2019 at 04:37:06AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    43151d6c 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=178c8394a00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=4183eeef650d1234
> dashboard link: https://syzkaller.appspot.com/bug?extid=c1b25598aa60dcd47e78
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17c22222a00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11ddce02a00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+c1b25598aa60dcd47e78@...kaller.appspotmail.com
> 
> usb 1-1: new low-speed USB device number 2 using dummy_hcd
> usb 1-1: config 0 has an invalid interface number: 93 but max is 0
> usb 1-1: config 0 has no interface number 0
> usb 1-1: New USB device found, idVendor=13b1, idProduct=0042,
> bcdDevice=f9.d4
> usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> usb 1-1: config 0 descriptor??
> usb 1-1: WARNING: ath10k USB support is incomplete, don't expect anything to
> work!

Looks like we just need to change the printk message string here.