INFO: task udevd:16634 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:26856 pid:16634 tgid:16634 ppid:5044   task_flags:0x400040 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17d4/0x5820
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x836/0xbc0
 do_read_cache_folio+0x1ac/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x9a/0x7a0
 bdev_disk_changed+0x851/0x17a0
 blkdev_get_whole+0x372/0x510
 bdev_open+0x324/0xd70
 blkdev_open+0x461/0x600
 do_dentry_open+0x816/0x1380
 vfs_open+0x3b/0x340
 path_openat+0x1443/0x1d60
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f550a7169a4
RSP: 002b:00007ffd708ccaa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000563e6d29d780 RCX: 00007f550a7169a4
RDX: 00000000000a0800 RSI: 0000563e6d28aec0 RDI: 00000000ffffff9c
RBP: 0000563e6d28aec0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000563e6d294950 R14: 00007ffd708ccb4c R15: 0000563e6d27d910
 </TASK>

Showing all locks held in the system:
locks held by kworker/u8:1/13: 4, last CPU#0:
 #0: ffff88818d1e9140 ((wq_completion)krds_cp_wq#23/0){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90000127c40 ((work_completion)(&(&cp->cp_conn_w)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff8881be0edb80 (&tc->t_conn_path_lock){+.+.}-{4:4}, at: rds_tcp_conn_path_connect+0x1cc/0x920
 #3: ffff88802b5c8f60 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_bind+0x3b0/0xaa0
locks held by khungtaskd/34: 1, last CPU#0:
 #0: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by getty/5421: 2, on CPU#1:
 #0: ffff8881145280a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034762e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by syz-executor/5557: 2, last CPU#0:
 #0: ffff8881ba3729f8 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x1a4/0x9f0
 #1: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x240
locks held by kworker/1:3/5648: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90004f67c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:7/7200: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900061dfc40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/u8:4/8940: 3, on CPU#1:
 #0: ffff88811091e940 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007887c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x116/0x15c0
locks held by kworker/1:15/14916: 3, last CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90006c1fc40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/u9:13/27468: 3, on CPU#0:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f857c40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
locks held by kworker/0:18/9182: 3, on CPU#0:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000677fc40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/0:19/11617: 3, on CPU#0:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007377c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/0:20/11618: 4, last CPU#0:
 #0: ffff888100069d40 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900070cfc40 ((work_completion)(&(&gc_work->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: gc_worker+0x274/0x1890
 #3: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: nf_conntrack_free+0x97/0x710
locks held by kworker/0:22/11620: 3, on CPU#0:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007057c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff8881bdec8250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x1fd/0x3b0
locks held by udevd/16634: 1, on CPU#0:
 #0: ffff88816cbcd350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
locks held by kworker/u8:0/21411: 2, last CPU#1:
 #0: ffff8880293fc140 ((wq_completion)bond112){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90028057c40 ((work_completion)(&(&bond->ad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
locks held by kworker/1:0/21414: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90028087c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:1/23211: 4, last CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9002001fc40 ((work_completion)(&helper->damage_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff88816bd12a70 (&helper->lock){+.+.}-{4:4}, at: drm_fb_helper_damage_work+0x15b/0xf20
 #3: ffff8881017bc128 (&dev->master_mutex){+.+.}-{4:4}, at: drm_master_internal_acquire+0x20/0x80
locks held by syz.0.11586/25554: 1, on CPU#1:
 #0: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
locks held by syz.1.11590/25577: 2, on CPU#0:
 #0: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30
 #1: ffffffff902f3ce0 (flowtable_lock){+.+.}-{4:4}, at: nf_flow_table_cleanup+0x21/0xb0
locks held by syz.2.11589/25570: 1, on CPU#1:
 #0: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
locks held by syz.2.11589/25571: 1, on CPU#0:
 #0: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: bpf_xdp_link_attach+0x120/0x990
locks held by syz.2.11589/25573: 1, on CPU#0:
 #0: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x2fb/0x1c50
locks held by kworker/1:2/25587: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f66fc40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:4/25588: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f627c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:5/25589: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f3a7c40 (netdev_work){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff9024fb40 (rtnl_mutex){+.+.}-{4:4}, at: netdev_work_proc+0x6f/0x770
locks held by kworker/1:6/25590: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f397c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:8/25591: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f387c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:9/25592: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f337c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:10/25593: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f2d7c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:11/25594: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000f257c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:12/25595: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007e57c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:13/25596: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007917c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:14/25598: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900078c7c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by kworker/1:18/25601: 3, on CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90007777c40 ((work_completion)(&w->work)#2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff902cf9c0 (nf_conntrack_mutex){+.+.}-{4:4}, at: nf_ct_iterate_cleanup+0x3f/0x500
locks held by syz-executor/25604: 3, last CPU#1:
 #0: ffffffff8ee35b90 (dup_mmap_sem){++++}-{0:0}, at: copy_mm+0x10f/0x480
 #1: ffff88816eb003b8 (&mm->mmap_lock){++++}-{4:4}, at: dup_mmap+0x195/0x1dc0
 #2: ffff88816eb069b8 (
&mm->mmap_lock/1){+.+.}-{4:4}, at: dup_mmap+0x221/0x1dc0
locks held by syz-executor/25605: 2, last CPU#0:
 #0: ffff888025901d38 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x1dd/0x4e0
 #1: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x240
locks held by dhcpcd/25606: 2, on CPU#0:
 #0: ffff8881ac3b1440 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: __sock_release+0x7a/0x1f0
 #1: ffffffff8ed62aa8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17d/0x390
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 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: 21414 Comm: kworker/1:0 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
Workqueue: events iterate_cleanup_work
RIP: 0010:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 50 4b 6f 0a cc 89 f6 31 d2 e9 06 04 a5 03 66 0f 1f 44 00
RSP: 0018:ffffc90000a18d30 EFLAGS: 00000046
RAX: 000000000005ef97 RBX: ffff88823c623c80 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000005ef97 RDI: 0000000000000838
RBP: ffffc90000a18df0 R08: 0000000000000100 R09: 0000000000080000
R10: 0000000000000000 R11: ffffffff81754510 R12: 000000000005ef97
R13: dffffc0000000000 R14: 000000001000035a R15: 0000000000000020
FS:  0000000000000000(0000) GS:ffff8882a8cde000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5912e65030 CR3: 000000011598e000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x385/0x630
 __hrtimer_rearm_deferred+0x36c/0x4b0
 irqentry_exit+0x8d3/0x910
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80
Code: f7 e8 fd 52 be f5 f7 c3 00 02 00 00 74 05 e8 30 8a ea f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 94 6c af f5 65 48 8b 05 5c b2 ae 07 48 85 c0 74 18 5b 41 5e c3
RSP: 0018:ffffc90000a18f40 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000283 RCX: 8000000000000102
RDX: 0000000000000002 RSI: ffffffff8e47651f RDI: 0000000000000001
RBP: 0000000000000004 R08: ffffffff907a397f R09: 1ffffffff20f472f
R10: dffffc0000000000 R11: fffffbfff20f4730 R12: 0000000000000009
R13: 0000000000000008 R14: ffff88823c628280 R15: 0000000000000100
 handle_softirqs+0x226/0x860
 do_softirq+0x77/0xd0
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x140
 nf_ct_iterate_cleanup+0x488/0x500
 iterate_cleanup_work+0xdc/0x180
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
