BUG: corrupted list in corrupted (3)

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: f8f02d5c USB: OTG: rename product list of devices
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
console output: https://syzkaller.appspot.com/x/log.txt?x=11bfddf1100000
kernel config: https://syzkaller.appspot.com/x/.config?x=fbe5dc26525767f1
dashboard link: https://syzkaller.appspot.com/bug?extid=0b3de1d31a24da20947b
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11abf20d100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ea5a11100000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+0b3de1...@syzkaller.appspotmail.com

------------[ cut here ]------------
kernel BUG at lib/list_debug.c:26!


---
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[Andrey Konovalov]

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#syz dup: BUG: corrupted list in em28xx_init_extension