[syzbot] Monthly kernfs report (Aug 2026)

[syzbot] Monthly kernfs report (Aug 2026)

[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, 2 new issues were detected and 0 were fixed.
In total, 27 issues are still open and 30 have already been fixed.
There are also 8 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  1729    Yes   possible deadlock in kernfs_remove
                   https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3
<2>  609     No    possible deadlock in kernfs_remove_by_name_ns (2)
                   https://syzkaller.appspot.com/bug?extid=b50eba6bf6cd3f8ba7d0
<3>  146     Yes   INFO: task hung in kernfs_dop_revalidate (4)
                   https://syzkaller.appspot.com/bug?extid=da20d108162166514db6
<4>  131     No    INFO: task hung in sb_start_write (2)
                   https://syzkaller.appspot.com/bug?extid=b3fba2e269970207b61d
<5>  26      No    possible deadlock in __kernfs_remove (3)
                   https://syzkaller.appspot.com/bug?extid=1075f6dc93f398c1857e
<6>  12      Yes   INFO: rcu detected stall in kernfs_fop_open (7)
                   https://syzkaller.appspot.com/bug?extid=19d01f6082ec61dd45b2
<7>  639     Yes   WARNING in kernfs_remove_by_name_ns (3)
                   https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d
<8>  146     Yes   INFO: task hung in fdget_pos
                   https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7
<9>  72      Yes   possible deadlock in kernfs_seq_start
                   https://syzkaller.appspot.com/bug?extid=4c493dcd5a68168a94b2
<10> 44      Yes   INFO: task hung in kernfs_remove_by_name_ns (2)
                   https://syzkaller.appspot.com/bug?extid=6d5664213a6db9a5a72c

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