INFO: task syz.9.467:7858 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.467       state:D stack:23096 pid:7858  tgid:7857  ppid:7306   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 perf_trace_init+0x50/0x2d0
 perf_tp_event_init+0x8d/0x120
 perf_try_init_event+0x17f/0x870
 perf_event_alloc+0x133e/0x2be0
 __se_sys_perf_event_open+0x772/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d7b38eba9
RSP: 002b:00007f4d7c167038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f4d7b5d5fa0 RCX: 00007f4d7b38eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f4d7b411e19 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4d7b5d6038 R14: 00007f4d7b5d5fa0 R15: 00007ffdde2e6b78
 </TASK>

Showing all locks held in the system:
1 lock held by pool_workqueue_/3:
 #0: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
3 locks held by kworker/u8:1/13:
 #0: ffff8881099fd148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90000107bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
3 locks held by kworker/u9:2/186:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000284fbc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
2 locks held by getty/5670:
 #0: ffff88801ffdd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
6 locks held by kworker/u8:3/5873:
 #0: ffff88801b2f7148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000396fbc0 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f52d2b0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf7/0x800
 #3: ffff88803c7c90e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x10a/0x3d0
 #4: ffff88803c7ca250 (&devlink->lock_key#8){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x11c/0x3d0
 #5: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_dev_lock+0x257/0x2f0
1 lock held by syz.0.464/7844:
 #0: ffffffff8e19d688 (event_mutex){+.+.}-{4:4}, at: perf_trace_destroy+0x2e/0x150
7 locks held by syz.1.465/7849:
3 locks held by syz.9.467/7858:
 #0: ffffffff99b146b0 (&pmus_srcu){.+.+}-{0:0}, at: class_srcu_constructor+0x2c/0x60
 #1: ffffffff99b146b0 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc+0xf61/0x2be0
 #2: ffffffff8e19d688 (event_mutex){+.+.}-{4:4}, at: perf_trace_init+0x50/0x2d0
1 lock held by syz-executor/7867:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
1 lock held by syz-executor/7872:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
1 lock held by syz-executor/7895:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
2 locks held by syz-executor/7897:
 #0: ffffffff8f52d2b0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x304/0x4d0
 #1: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: wg_netns_pre_exit+0x1c/0x1d0
5 locks held by syz-executor/7899:
 #0: ffffffff8f52d2b0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x304/0x4d0
 #1: ffffffff8f28c890 (devices_rwsem){++++}-{4:4}, at: rdma_dev_init_net+0x19a/0x270
 #2: ffffffff8f28ca50 (rdma_nets_rwsem){++++}-{4:4}, at: rdma_dev_init_net+0x1d2/0x270
 #3: ffff888108cc4f98 (&device->compat_devs_mutex){+.+.}-{4:4}, at: add_one_compat_dev+0xee/0x5c0
 #4: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: ib_get_eth_speed+0x151/0x7b0
1 lock held by syz-executor/7911:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/7913:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/7915:
 #0: ffffffff8f53a148 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 7849 Comm: syz.1.465 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:match_held_lock+0x78/0xc0
Code: 00 00 48 c7 c2 10 93 49 93 48 29 d0 48 c1 f8 03 48 ba 29 5c 8f c2 f5 28 5c 8f 48 0f af d0 bb 01 00 00 00 48 39 ca 74 02 31 db <89> d8 5b 41 5e e9 8e dd 02 00 cc 90 e8 07 01 4a f9 85 c0 74 22 83
RSP: 0018:ffffc900001e0000 EFLAGS: 00000046
RAX: 0000000000000008 RBX: 0000000000000001 RCX: 2dab8e4d9dd0d700
RDX: 0000000000010100 RSI: ffff888136627a98 RDI: ffff888108486248
RBP: ffff888108486248 R08: ffffffff8fa38f37 R09: 1ffffffff1f471e6
R10: dffffc0000000000 R11: fffffbfff1f471e7 R12: 0000000000000007
R13: 0000000000000007 R14: ffff888136627a98 R15: ffff888108485640
FS:  00007fb642be76c0(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565339349e68 CR3: 000000004a9c6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_release+0x127/0x3e0
 _raw_spin_unlock_irqrestore+0x70/0x110
 __hrtimer_run_queues+0x408/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__pi___x86_indirect_thunk_r11+0x0/0x20
Code: 00 00 00 0f 1f 80 00 00 00 00 e8 01 00 00 00 cc 4c 89 14 24 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 <e8> 01 00 00 00 cc 4c 89 1c 24 e9 d1 0a 00 00 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc900001e04a0 EFLAGS: 00000282
RAX: ffffffff8184fce6 RBX: ffffc900001e0560 RCX: 2dab8e4d9dd0d700
RDX: 0000000000000001 RSI: ffffffff8184fce6 RDI: ffffc900001e0560
RBP: ffffc900001e0530 R08: ffffc900001e0e30 R09: 0000000000000000
R10: ffffc900001e04f8 R11: ffffffff81ac4b00 R12: ffff888108485640
R13: ffff888118a68300 R14: ffffffff81ac4b00 R15: ffffc900001e04a8
 </IRQ>
 <TASK>
 </TASK>
