[syzbot] Monthly kernfs report (Jan 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, 22 issues are still open and 21 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  2007    Yes   possible deadlock in __kernfs_remove (2)
                   https://syzkaller.appspot.com/bug?extid=aa419d82b68e6a7e96c5
<2>  793     Yes   WARNING: locking bug in kernfs_path_from_node
                   https://syzkaller.appspot.com/bug?extid=6ea37e2e6ffccf41a7e6
<3>  341     No    possible deadlock in lookup_slow (3)
                   https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3
<4>  324     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<5>  249     Yes   WARNING in kernfs_get (5)
                   https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6
<6>  85      Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<7>  75      Yes   INFO: task hung in do_unlinkat (5)
                   https://syzkaller.appspot.com/bug?extid=08b113332e19a9378dd5
<8>  58      Yes   INFO: task hung in kernfs_add_one
                   https://syzkaller.appspot.com/bug?extid=e4804edf2708e8b7d2a5
<9>  18      No    WARNING in kernfs_new_node (3)
                   https://syzkaller.appspot.com/bug?extid=306212936b13e520679d
<10> 15      Yes   possible deadlock in kernfs_seq_start
                   https://syzkaller.appspot.com/bug?extid=4c493dcd5a68168a94b2

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