[syzbot] Monthly kernfs report (Oct 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, 0 new issues were detected and 0 were fixed.
In total, 25 issues are still open and 31 have already been fixed.
There are also 11 low-priority issues.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 3207    No    possible deadlock in kernfs_remove_by_name_ns (2)
                  https://syzkaller.appspot.com/bug?extid=b50eba6bf6cd3f8ba7d0
<2> 2048    Yes   possible deadlock in kernfs_remove
                  https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3
<3> 241     No    possible deadlock in kernfs_fop_readdir
                  https://syzkaller.appspot.com/bug?extid=8fd10d8928ed1f715290
<4> 32      No    possible deadlock in kernfs_add_one
                  https://syzkaller.appspot.com/bug?extid=f50d605480fdec503770
<5> 18      Yes   INFO: rcu detected stall in kernfs_fop_open (7)
                  https://syzkaller.appspot.com/bug?extid=19d01f6082ec61dd45b2
<6> 676     Yes   WARNING in kernfs_remove_by_name_ns (3)
                  https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<7> 182     Yes   INFO: task hung in fdget_pos
                  https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7
<8> 64      Yes   INFO: rcu detected stall in sys_readlink (5)
                  https://syzkaller.appspot.com/bug?extid=23e14ec82f3c8692eaa9
<9> 2       Yes   INFO: rcu detected stall in kernfs_fop_release (3)
                  https://syzkaller.appspot.com/bug?extid=087d9dac1f398074ca9f

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