Re: [syzbot] [usb] INFO: rcu detected stall in newfstatat (3)

[syzbot]

syzbot has bisected this issue to:

commit c2368b19807affd7621f7c4638cd2e17fec13021
Author: Jiri Pirko <jiri@xxxxxxxxxx>
Date:   Fri Jul 29 07:10:35 2022 +0000

    net: devlink: introduce "unregistering" mark and use it during devlinks iteration

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14dc6736180000
start commit:   29cd507cbec2 Merge tag 'integrity-v6.8-fix' of git://git.k..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16dc6736180000
console output: https://syzkaller.appspot.com/x/log.txt?x=12dc6736180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=70429b75d4a1a401
dashboard link: https://syzkaller.appspot.com/bug?extid=96127c74434e19e4609d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11767d61180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15f691a6180000

Reported-by: syzbot+96127c74434e19e4609d@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection