INFO: task udevd:13654 blocked 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:22496 pid:13654 tgid:13654 ppid:5256   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x15dd/0x52d0
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x6d8/0xbc0
 do_read_cache_folio+0x1ad/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x92/0xef0
 bdev_disk_changed+0x7ba/0x1550
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x785/0x14e0
 vfs_open+0x3b/0x340
 path_openat+0x2e08/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f43499169a4
RSP: 002b:00007ffcb28e07a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000556da7f1f780 RCX: 00007f43499169a4
RDX: 00000000000a0800 RSI: 0000556da7f13420 RDI: 00000000ffffff9c
RBP: 0000556da7f13420 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000556da7f13800 R14: 0000000000000001 R15: 0000556da7eff910
 </TASK>

Showing all locks held in the system:
3 locks held by rcu_exp_gp_kthr/18:
 #0: ffff88812103ade0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff888121024588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff888028cc27d0 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0x66/0x1390
1 lock held by khungtaskd/34:
 #0: ffffffff8e7602e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5634:
 #0: ffff88811105d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
1 lock held by udevd/13654:
 #0: ffff88810a9aa358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by udevd/16711:
 #0: ffff88811eaf9358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
2 locks held by syz.3.32995/485:
 #0: ffff88811dd334d8 (&nft_net->commit_mutex){+.+.}-{4:4}, at: nf_tables_valid_genid+0x3b/0x100
 #1: ffffffff8e766578 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

NMI backtrace for cpu 1
CPU: 1 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+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd9/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5020 Comm: kworker/u9:4 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_unbound toggle_allocation_gate
RIP: 0010:__flush_smp_call_function_queue+0x2f/0xa90
Code: 41 55 41 54 53 48 83 ec 38 89 fb 49 be 00 00 00 00 00 fc ff df e8 81 0d 0c 00 48 c7 c0 c0 74 11 90 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 d7 09 00 00 8b 2d b3 e8 57 0e 31 ff 89 ee e8 9a 11 0c
RSP: 0018:ffffc90000007f68 EFLAGS: 00000802
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811592d7c0
RDX: 0000000000010000 RSI: ffffffff8c27b1e0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff901141b7 R09: 1ffffffff2022836
R10: dffffc0000000000 R11: fffffbfff2022837 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88818de65000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51d4031ff8 CR3: 000000004f7ca000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __sysvec_call_function_single+0x9a/0x430
 sysvec_call_function_single+0x9e/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3a 63 f0 f5 48 89 df e8 72 d8 f0 f5 e8 ed 2f 1c f6 fb bf 01 00 00 00 <e8> 52 97 e2 f5 65 8b 05 9b 5f 6a 07 85 c0 74 07 5b e9 01 48 00 00
RSP: 0018:ffffc90006d8faf0 EFLAGS: 00000202
RAX: 000000000004b5d5 RBX: ffff8881032a9000 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8def7f4f RDI: 0000000000000001
RBP: ffffc90006d8fce8 R08: ffffffff901141b7 R09: 1ffffffff2022836
R10: dffffc0000000000 R11: fffffbfff2022837 R12: ffffffff9a2ddf20
R13: ffff888011c30f18 R14: dffffc0000000000 R15: 0000000002400000
 process_scheduled_works+0x908/0x1830
 worker_thread+0xa50/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
