[syzbot] Monthly perf report (May 2026)

[syzbot]

Hello perf maintainers/developers,

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

During the period, 0 new issues were detected and 0 were fixed.
In total, 6 issues are still open and 27 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 11 Yes possible deadlock in refcount_dec_and_mutex_lock (2)
https://syzkaller.appspot.com/bug?extid=196a82fd904572696b3c
<2> 11473 Yes WARNING: suspicious RCU usage in get_callchain_entry
https://syzkaller.appspot.com/bug?extid=72a43cdb78469f7fbad1
<3> 11 No KCSAN: data-race in __perf_event_overflow / __perf_event_set_bpf_prog
https://syzkaller.appspot.com/bug?extid=2a077cb788749964cf68

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