[syzbot] Monthly kernfs report (Apr 2025)

[syzbot] Monthly kernfs report (Apr 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, 3 new issues were detected and 0 were fixed.
In total, 28 issues are still open and 23 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  4949    Yes   possible deadlock in __kernfs_remove (2)
                   https://syzkaller.appspot.com/bug?extid=aa419d82b68e6a7e96c5
<2>  640     Yes   INFO: task hung in evict (2)
                   https://syzkaller.appspot.com/bug?extid=65b1e2d8f2d618a93e96
<3>  380     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<4>  327     Yes   WARNING in kernfs_get (5)
                   https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6
<5>  102     Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<6>  62      Yes   INFO: task hung in kernfs_add_one
                   https://syzkaller.appspot.com/bug?extid=e4804edf2708e8b7d2a5
<7>  38      Yes   INFO: task hung in do_rmdir (6)
                   https://syzkaller.appspot.com/bug?extid=4128a26fb0f85ec9e76c
<8>  30      No    possible deadlock in kernfs_fop_write_iter (2)
                   https://syzkaller.appspot.com/bug?extid=1cfd86253864f61b533e
<9>  14      Yes   possible deadlock in kernfs_iop_getattr
                   https://syzkaller.appspot.com/bug?extid=4bb2305559463e8f6a2a
<10> 10      Yes   INFO: task hung in pipe_write (6)
                   https://syzkaller.appspot.com/bug?extid=5984e31a805252b3b40a

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