[syzbot] Monthly trace report (Mar 2026)

[syzbot]

Hello trace maintainers/developers,

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

During the period, 3 new issues were detected and 1 were fixed.
In total, 17 issues are still open and 64 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  277     Yes   WARNING in tracepoint_probe_unregister (3)
                   https://syzkaller.appspot.com/bug?extid=a1d25e53cd4a10f7f2d3
<2>  107     Yes   WARNING in blk_register_tracepoints
                   https://syzkaller.appspot.com/bug?extid=c54ded83396afee31eb1
<3>  76      Yes   KASAN: slab-use-after-free Read in bpf_trace_run2 (3)
                   https://syzkaller.appspot.com/bug?extid=59701a78e84b0bccfe1b
<4>  75      Yes   INFO: task hung in blk_trace_ioctl (4)
                   https://syzkaller.appspot.com/bug?extid=ed812ed461471ab17a0c
<5>  46      Yes   INFO: task hung in blk_trace_startstop
                   https://syzkaller.appspot.com/bug?extid=774863666ef5b025c9d0
<6>  42      No    WARNING in ring_buffer_map_get_reader (2)
                   https://syzkaller.appspot.com/bug?extid=c7143161d8215214a993
<7>  27      Yes   INFO: task hung in relay_open (2)
                   https://syzkaller.appspot.com/bug?extid=16ea22f26882d7e46f35
<8>  27      Yes   WARNING in get_probe_ref
                   https://syzkaller.appspot.com/bug?extid=8672dcb9d10011c0a160
<9>  18      Yes   INFO: task hung in blk_trace_setup (4)
                   https://syzkaller.appspot.com/bug?extid=9c1ebb9957045e00ac63
<10> 2       Yes   possible deadlock in down_trylock (3)
                   https://syzkaller.appspot.com/bug?extid=c3740bc819eb55460ec3

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