[syzbot] Monthly kernfs report (Aug 2024)

[syzbot]

Hello kernfs maintainers/developers,

This is a 31-day syzbot report for the kernfs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/kernfs

During the period, 1 new issues were detected and 0 were fixed.
In total, 21 issues are still open and 21 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  5471    Yes   BUG: workqueue lockup (5)
                   https://syzkaller.appspot.com/bug?extid=f0b66b520b54883d4b9d
<2>  1155    Yes   INFO: task hung in lookup_slow (3)
                   https://syzkaller.appspot.com/bug?extid=7cfc6a4f6b025f710423
<3>  249     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<4>  182     No    INFO: task hung in eventpoll_release_file (2)
                   https://syzkaller.appspot.com/bug?extid=63ab1a905aebbf410bb7
<5>  118     No    INFO: task hung in do_renameat2 (2)
                   https://syzkaller.appspot.com/bug?extid=39a12f7473ed8066d2ca
<6>  77      Yes   INFO: rcu detected stall in sys_openat (3)
                   https://syzkaller.appspot.com/bug?extid=23d96fb466ad56cbb5e5
<7>  43      Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<8>  38      Yes   INFO: task hung in kernfs_add_one
                   https://syzkaller.appspot.com/bug?extid=e4804edf2708e8b7d2a5
<9>  31      Yes   INFO: rcu detected stall in sys_newfstatat (4)
                   https://syzkaller.appspot.com/bug?extid=1c02a56102605204445c
<10> 23      Yes   WARNING in kernfs_get (5)
                   https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx.

To disable reminders for individual bugs, reply with the following command:
#syz set <Ref> no-reminders

To change bug's subsystems, reply with:
#syz set <Ref> subsystems: new-subsystem

You may send multiple commands in a single email message.