[syzbot] Monthly kernfs report (Feb 2025)

[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, 24 issues are still open and 21 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  2917    Yes   possible deadlock in __kernfs_remove (2)
                   https://syzkaller.appspot.com/bug?extid=aa419d82b68e6a7e96c5
<2>  348     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<3>  342     No    possible deadlock in lookup_slow (3)
                   https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3
<4>  272     Yes   WARNING in kernfs_get (5)
                   https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6
<5>  90      Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<6>  87      Yes   INFO: task hung in fdget_pos
                   https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7
<7>  23      No    possible deadlock in kernfs_fop_write_iter (2)
                   https://syzkaller.appspot.com/bug?extid=1cfd86253864f61b533e
<8>  11      Yes   INFO: task hung in chmod_common (5)
                   https://syzkaller.appspot.com/bug?extid=4426dfa686191fab8b50
<9>  8       Yes   INFO: task hung in __generic_file_fsync (5)
                   https://syzkaller.appspot.com/bug?extid=d11add3a08fc150ce457
<10> 5       Yes   general protection fault in kernfs_dop_revalidate
                   https://syzkaller.appspot.com/bug?extid=e37a1730d63d207fe403

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