linux-kernel - Re: [syzbot] [input?] INFO: task hung in uhid_char

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Date:   Tue, 29 Aug 2023 10:28:25 -0700
From:   syzbot <syzbot+8fe2d362af0e1cba8735@...kaller.appspotmail.com>
To:     agordeev@...ux.ibm.com, akrowiak@...ux.ibm.com,
        benjamin.tissoires@...hat.com, clg@...hat.com, davem@...emloft.net,
        david.rheinsberg@...il.com, edumazet@...gle.com, jikos@...nel.org,
        kuba@...nel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, mjrosato@...ux.ibm.com,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [input?] INFO: task hung in uhid_char_release

syzbot has bisected this issue to:

commit bf48961f6f48e3b7eb80c3e179207e9f4e4cd660
Author: Tony Krowiak <akrowiak@...ux.ibm.com>
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@...kaller.appspotmail.com
Fixes: bf48961f6f48 ("s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl")

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