[syzbot] Monthly kernfs report (Jan 2024)

[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, 10 issues are still open and 20 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 1669    Yes   possible deadlock in input_event (2)
                  https://syzkaller.appspot.com/bug?extid=d4c06e848a1c1f9f726f
<2> 212     Yes   WARNING in kernfs_remove_by_name_ns (3)
                  https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<3> 50      Yes   KASAN: use-after-free Read in kernfs_next_descendant_post (2)
                  https://syzkaller.appspot.com/bug?extid=6bc35f3913193fe7f0d3
<4> 37      Yes   KASAN: use-after-free Read in kernfs_add_one
                  https://syzkaller.appspot.com/bug?extid=ef17b5b364116518fd65
<5> 31      No    possible deadlock in lookup_slow (3)
                  https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3
<6> 3       Yes   stack segment fault in __stack_depot_save
                  https://syzkaller.appspot.com/bug?extid=1f564413055af2023f17

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