------------[ cut here ]------------
unexpected event refcount: 2; ptr=ffff88807abd0c10
WARNING: CPU: 1 PID: 5621 at kernel/events/core.c:5256 free_event+0xa2/0xb0 kernel/events/core.c:5254
Modules linked in:
CPU: 1 PID: 5621 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-00185-g3e9bc0472b91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:free_event+0xa2/0xb0 kernel/events/core.c:5254
Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 a5 ee 36 00 49 8b b7 38 02 00 00 48 c7 c7 60 3f d3 8b 4c 89 fa e8 4f fd 94 ff 90 <0f> 0b 90 90 5b 41 5e 41 5f c3 cc cc cc cc 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90004c17860 EFLAGS: 00010246
RAX: 99d4af4f591b9200 RBX: 0000000000000002 RCX: ffff8880204f1e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004c17968 R08: ffffffff81587f12 R09: fffffbfff1c39b4c
R10: dffffc0000000000 R11: fffffbfff1c39b4c R12: dffffc0000000000
R13: 1ffff1100f57a1de R14: ffff88807abd0e48 R15: ffff88807abd0c10
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff131d98000 CR3: 00000000700c0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 perf_event_release_kernel+0x6c9/0x7d0 kernel/events/core.c:5421
 perf_release+0x3b/0x50 kernel/events/core.c:5442
 __fput+0x429/0x8a0 fs/file_table.c:422
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa1b/0x27e0 kernel/exit.c:878
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 get_signal+0x16a1/0x1740 kernel/signal.c:2911
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>