[syzbot] Monthly cgroups report (Jun 2025)

[syzbot]

Hello cgroups maintainers/developers,

This is a 31-day syzbot report for the cgroups subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/cgroups

During the period, 3 new issues were detected and 0 were fixed.
In total, 10 issues are still open and 38 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 3931    Yes   possible deadlock in task_rq_lock
                  https://syzkaller.appspot.com/bug?extid=ca14b36a46a8c541b509
<2> 18      No    WARNING in css_rstat_flush
                  https://syzkaller.appspot.com/bug?extid=7a605e85e5b5a7e4a5e3
<3> 14      No    BUG: unable to handle kernel paging request in percpu_ref_get_many (2)
                  https://syzkaller.appspot.com/bug?extid=3109abc43c8fcf15212b
<4> 10      Yes   BUG: unable to handle kernel paging request in css_rstat_flush
                  https://syzkaller.appspot.com/bug?extid=36ca05bdc071f7ba8f75

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