INFO: task syz.1.201:4224 blocked for more than 143 seconds.
      Not tainted 5.15.165-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.201       state:D stack:26208 pid: 4224 ppid:  3569 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 perf_pending_task_sync+0x13c/0x1c0 kernel/events/core.c:5122
 _free_event+0x34/0xe60 kernel/events/core.c:5128
 put_event kernel/events/core.c:5253 [inline]
 perf_event_release_kernel+0x873/0x900 kernel/events/core.c:5378
 perf_release+0x37/0x40 kernel/events/core.c:5388
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f478d6dfef9
RSP: 002b:00007f478bb3af48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f478d73e900 RCX: 00007f478d6dfef9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000000e R08: 00007f478bb38ce6 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f478d87c058 R15: 00007ffe4601e878
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8c91fbe0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3330:
 #0: ffff88814b791098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc9000229b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/1:4/3615:
 #0: ffff888011c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90003077d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by kworker/u4:7/4400:
2 locks held by syz.4.1878/8697:
 #0: ffffffff8c96d428 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x2a/0x140 kernel/trace/trace_event_perf.c:239
 #1: ffffffff8c9241a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #1: ffffffff8c9241a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
2 locks held by syz.1.1882/8716:
 #0: ffffffff914b9b18 (&pmus_srcu){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 include/linux/rcupdate.h:312
 #1: ffffffff8c96d428 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4f/0x2d0 kernel/trace/trace_event_perf.c:221
2 locks held by syz.0.1884/8717:
 #0: ffffffff914b9b18 (&pmus_srcu){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 include/linux/rcupdate.h:312
 #1: ffffffff8c96d428 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4f/0x2d0 kernel/trace/trace_event_perf.c:221

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3010 Comm: syslogd Not tainted 5.15.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:331 [inline]
RIP: 0010:rcu_is_watching+0x5a/0xa0 kernel/rcu/tree.c:1123
Code: 03 42 80 3c 38 00 74 08 4c 89 f7 e8 60 11 5f 00 48 c7 c3 c8 b2 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 1a <8b> 03 65 ff 0d 95 56 97 7e 74 08 24 01 5b 41 5e 41 5f c3 e8 76 73
RSP: 0018:ffffc900022e7d20 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880b9a3b2c8 RCX: ffffffff8162d3b8
RDX: 0000000000000000 RSI: ffffffff8ad8f7a0 RDI: ffffffff8ad8f760
RBP: ffffc900022e7e68 R08: dffffc0000000000 R09: fffffbfff1bd2a56
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200045cfb4
R13: ffffffff8a3360ec R14: ffffffff8c3b3800 R15: dffffc0000000000
FS:  00007f1b297fb380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f46b0caa338 CR3: 000000007e8d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0xb9/0x9a0 kernel/locking/lockdep.c:5634
 do_write_seqcount_end include/linux/seqlock.h:565 [inline]
 vtime_user_exit+0x2d1/0x400 kernel/sched/cputime.c:732
 __context_tracking_exit+0x4c/0x80 kernel/context_tracking.c:160
 user_exit_irqoff include/linux/context_tracking.h:47 [inline]
 __enter_from_user_mode kernel/entry/common.c:22 [inline]
 syscall_enter_from_user_mode+0x1bf/0x240 kernel/entry/common.c:110
 do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1b2994fbf2
Code: 89 c7 48 89 44 24 08 e8 7b 34 fa ff 48 8b 44 24 08 48 83 c4 28 c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 07 a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff44d03a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1b2994fbf2
RDX: 0000000000000065 RSI: 00005596c2a92c50 RDI: 0000000000000003
RBP: 00005596c2a92c50 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f1b29aee3a3 R11: 0000000000000246 R12: 0000000000000065
R13: 00007f1b297fb300 R14: 0000000000000006 R15: 00005596c2a92a60
 </TASK>