INFO: task udevd:7811 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:22632 pid:7811  tgid:7811  ppid:5292   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 do_read_cache_folio+0x1aa/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x8c/0xf30
 bdev_disk_changed+0x75f/0x14b0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x3a8/0x510
 do_dentry_open+0x953/0x13f0
 vfs_open+0x3b/0x340
 path_openat+0x2ee5/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f258eb169a4
RSP: 002b:00007ffe16987800 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056282b975ab0 RCX: 00007f258eb169a4
RDX: 00000000000a0800 RSI: 000056282b953ad0 RDI: 00000000ffffff9c
RBP: 000056282b953ad0 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056282b95e800 R14: 0000000000000001 R15: 000056282b94a910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ea0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5670:
 #0: ffff8880215c00a0 (&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
2 locks held by kworker/u8:3/5870:
 #0: ffff88804b039f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff88804b024008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
1 lock held by udevd/7811:
 #0: ffff888106f33358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by udevd/9139:
 #0: ffff888022a93358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
2 locks held by syz.1.6571/25586:
1 lock held by syz.2.6577/25593:

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

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+0x3fc/0x770
 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: 25593 Comm: syz.2.6577 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:update_se+0x7/0x5f0
Code: 00 48 89 df 48 8b b7 08 0b 00 00 48 83 ee 80 5b eb 11 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 <41> 54 53 48 83 ec 18 48 89 34 24 49 89 fc 48 bb 00 00 00 00 00 fc
RSP: 0000:ffffc900001e0ae8 EFLAGS: 00000086
RAX: 1ffff11026cc7413 RBX: ffff888113e5ec00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff888113e5ec00 RDI: ffff888136639f80
RBP: dffffc0000000000 R08: ffff888020175647 R09: 1ffff1100402eac8
R10: dffffc0000000000 R11: ffffed100402eac9 R12: ffff88813663a1b8
R13: 1ffff11026cc7437 R14: ffff88813663a040 R15: ffff88813663a098
FS:  000055557a9ca500(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003de0 CR3: 00000000281e4000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 update_curr+0x75/0x730
 check_preempt_wakeup_fair+0x5f6/0xb30
 wakeup_preempt+0xf4/0x280
 ttwu_do_activate+0x216/0x870
 try_to_wake_up+0x721/0x12b0
 hrtimer_wakeup+0x4e/0x60
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+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 4a 7d 21 f6 48 89 df e8 a2 14 22 f6 e8 6d 66 4b f6 fb bf 01 00 00 00 <e8> f2 0d 14 f6 65 8b 05 cb 50 24 07 85 c0 74 07 5b c3 cc cc cc cc
RSP: 0000:ffffc90006cc7cc0 EFLAGS: 00000282
RAX: ff0b232d3ce32100 RBX: ffff888020d54c00 RCX: ff0b232d3ce32100
RDX: 0000000000000000 RSI: ffffffff8d9b69f6 RDI: 0000000000000001
RBP: 000000000000000b R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 1ffff110041aa9bb
R13: 0000000000000000 R14: 0000000044000004 R15: ffff888020d54dd8
 get_signal+0x11a8/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 irqentry_exit_to_user_mode+0x81/0x120
 exc_page_fault+0x9f/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fdef9655171
Code: 48 8b 54 24 08 48 85 d2 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fa 01 0f 85 b3 01 00 00 48 8b 44 24 10 8b 54 24 18 <89> 10 e9 15 fd ff ff 48 8b 44 24 10 8b 10 48 8b 44 24 08 48 85 c0
RSP: 002b:00007ffce9156040 EFLAGS: 00010246
RAX: 0000200000003de0 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 000000000000c4ba RSI: 0000000000000000 RDI: 000055557a9ca3c8
RBP: 00007ffce9156148 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: 00007fdef99b5fac
R13: 00007fdef99b5fa0 R14: fffffffffffffffe R15: 00007ffce9156190
 </TASK>
