INFO: task hung in pipe_release (2)

[syzbot]

syzbot has bisected this issue to:

commit fddb5d430ad9fa91b49b1d34d0202ffe2fa0e179
Author: Aleksa Sarai <cyphar at cyphar.com>
Date:   Sat Jan 18 12:07:59 2020 +0000

    open: introduce openat2(2) syscall

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=164e716a900000
start commit:   6ba1b005 Merge tag 'asm-generic-fixes-5.8' of git://git.ke..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=154e716a900000
console output: https://syzkaller.appspot.com/x/log.txt?x=114e716a900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=84f076779e989e69
dashboard link: https://syzkaller.appspot.com/bug?extid=61acc40a49a3e46e25ea
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142ae224900000

Reported-by: syzbot+61acc40a49a3e46e25ea at syzkaller.appspotmail.com
Fixes: fddb5d430ad9 ("open: introduce openat2(2) syscall")

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