[syzbot] Monthly kernfs report

From: syzbot
Date: Tue Apr 04 2023 - 10:24:02 EST


Hello kernfs maintainers/developers,

This is a 30-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 1 were fixed.
In total, 12 issues are still open and 18 have been fixed so far.

Some of the still happening issues:

Crashes Repro Title
86 Yes WARNING in kernfs_remove_by_name_ns (3)
https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
49 Yes inconsistent lock state in find_vmap_area
https://syzkaller.appspot.com/bug?extid=8d19062486784d15dda9
28 Yes KASAN: use-after-free Read in kernfs_add_one
https://syzkaller.appspot.com/bug?extid=ef17b5b364116518fd65
23 Yes WARNING: suspicious RCU usage in mas_start
https://syzkaller.appspot.com/bug?extid=d79e205d463e603f47ff

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