[syzbot] Monthly kernfs report (May 2023)

[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, 8 issues are still open and 21 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 95      Yes   WARNING in kernfs_remove_by_name_ns (3)
                  https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<2> 49      Yes   inconsistent lock state in find_vmap_area
                  https://syzkaller.appspot.com/bug?extid=8d19062486784d15dda9
<3> 30      Yes   KASAN: use-after-free Read in kernfs_add_one
                  https://syzkaller.appspot.com/bug?extid=ef17b5b364116518fd65
<4> 1       No    KASAN: slab-use-after-free Read in kernfs_xattr_get
                  https://syzkaller.appspot.com/bug?extid=1b11da2ef24dccc2e98d

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