[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

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