[syzbot] Monthly kernfs report (Apr 2026)

[syzbot] Monthly kernfs report (Apr 2026)

[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, 29 issues are still open and 26 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  6040    Yes   possible deadlock in kernfs_iop_getattr
                   https://syzkaller.appspot.com/bug?extid=4bb2305559463e8f6a2a
<2>  2705    No    possible deadlock in kernfs_link_sibling (2)
                   https://syzkaller.appspot.com/bug?extid=dd764a450d93885d847f
<3>  2323    No    possible deadlock in kernfs_unlink_sibling (2)
                   https://syzkaller.appspot.com/bug?extid=a0ec0dbf8642550c291a
<4>  709     Yes   possible deadlock in kernfs_remove
                   https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3
<5>  603     Yes   WARNING in kernfs_get (5)
                   https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6
<6>  599     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<7>  138     Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<8>  128     Yes   INFO: task hung in fdget_pos
                   https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7
<9>  88      Yes   INFO: task hung in kernfs_add_one
                   https://syzkaller.appspot.com/bug?extid=e4804edf2708e8b7d2a5
<10> 44      Yes   WARNING in kernfs_new_node (3)
                   https://syzkaller.appspot.com/bug?extid=306212936b13e520679d

---
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@googlegroups.com.

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.