Re: [syzbot] [input?] INFO: task hung in uhid_char_release

From: syzbot
Date: Tue Aug 29 2023 - 13:31:03 EST


syzbot has bisected this issue to:

commit bf48961f6f48e3b7eb80c3e179207e9f4e4cd660
Author: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
Date: Tue May 30 22:35:37 2023 +0000

s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=155eba2fa80000
start commit: bde7f150276b Merge tag 'pm-6.5-rc2' of git://git.kernel.or..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=175eba2fa80000
console output: https://syzkaller.appspot.com/x/log.txt?x=135eba2fa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=6d0f369ef5fb88c9
dashboard link: https://syzkaller.appspot.com/bug?extid=8fe2d362af0e1cba8735
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124711b6a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178c5a92a80000

Reported-by: syzbot+8fe2d362af0e1cba8735@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: bf48961f6f48 ("s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl")

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