INFO: task udevd:23168 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:22424 pid:23168 tgid:23168 ppid:5058   task_flags:0x400140 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 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+0x9a/0x7a0
 bdev_disk_changed+0x817/0x1770
 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+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd6e15a29a4
RSP: 002b:00007ffe4da47d60 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000559cbc5cd780 RCX: 00007fd6e15a29a4
RDX: 00000000000a0800 RSI: 0000559cbc5ae560 RDI: 00000000ffffff9c
RBP: 0000559cbc5ae560 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000559cbc5c4950 R14: 0000000000000001 R15: 0000559cbc5ad910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5436:
 #0: ffff888112c000a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
3 locks held by kworker/u8:5/8782:
 #0: ffff88810fb1d940 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90006ab7c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11e/0x14c0
3 locks held by kworker/1:7/9524:
 #0: ffff888100069d40 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc9000a1d7c40 ((crda_timeout).work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: crda_timeout_work+0x16/0x80
1 lock held by udevd/23168:
 #0: ffff88816cee9350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
3 locks held by kworker/u9:38/7467:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc9002e6bfc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
1 lock held by syz.0.16169/8660:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
4 locks held by syz.0.16169/8661:
 #0: ffffffff8fe3f8c8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffff8881bba0a128 (&dev->mutex){....}-{4:4}, at: devlink_get_from_attrs_lock+0x34a/0x490
 #2: ffff8881bba09258 (&devlink->lock_key#3){+.+.}-{4:4}, at: devlink_get_from_attrs_lock+0x360/0x490
 #3: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: nsim_create+0x894/0x1160
2 locks held by syz.1.16177/8693:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
 #1: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
3 locks held by syz.2.16179/8699:
 #0: ffff8881ba2af440 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: sock_close+0x9b/0x240
 #1: ffffffff8fe3d928 ((netlink_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x54/0x90
 #2: ffff888113194cd0 (&nft_net->commit_mutex){+.+.}-{4:4}, at: nft_rcv_nl_event+0x13d/0xe00
1 lock held by syz.2.16179/8700:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x3bc/0x1e10
1 lock held by syz.2.16179/8701:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x32b/0x1b30
2 locks held by syz.2.16179/8704:
 #0: ffff888113194cd0 (&nft_net->commit_mutex){+.+.}-{4:4}, at: nf_tables_valid_genid+0x3b/0x100
 #1: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
1 lock held by syz.2.16179/8705:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: dev_ioctl+0x83c/0x1150
1 lock held by syz.2.16179/8706:
 #0: ffffffff8fdd0300 (rtnl_mutex){+.+.}-{4:4}, at: dev_ioctl+0x83c/0x1150

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

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+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 kthread+0x388/0x470
 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: 0 Comm: swapper/1 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:pv_native_safe_halt+0xf/0x20
Code: db 7c 02 e9 93 f6 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 53 c1 1f 00 fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffc90000197e20 EFLAGS: 00000202
RAX: 00000000009eb151 RBX: ffffffff819a91ea RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8dfaaacd RDI: ffffffff8c28ade0
RBP: ffffc90000197f10 R08: ffff88823c6339db R09: 1ffff110478c673b
R10: dffffc0000000000 R11: ffffed10478c673c R12: 0000000000000001
R13: 1ffff1102c156000 R14: 0000000000000001 R15: 1ffff1102c156000
FS:  0000000000000000(0000) GS:ffff8882a9287000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faaac1ea4c0 CR3: 00000001ba690000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 default_idle+0x9/0x20
 default_idle_call+0x72/0xb0
 do_idle+0x36a/0x5f0
 cpu_startup_entry+0x43/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
