INFO: task udevd:13843 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:24200 pid:13843 tgid:13843 ppid:5045   task_flags:0x400140 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17dd/0x5820
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x85e/0xc40
 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+0x80e/0x1360
 vfs_open_consume+0x4a/0x350
 path_openat+0x16fc/0x20f0
 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: 0033:0x7fcac3d169a4
RSP: 002b:00007ffcc6407bc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055eccb1a7780 RCX: 00007fcac3d169a4
RDX: 00000000000a0800 RSI: 000055eccb198fb0 RDI: 00000000ffffff9c
RBP: 000055eccb198fb0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055eccb19e950 R14: 0000000000000001 R15: 000055eccb187910
 </TASK>

Showing all locks held in the system:
locks held by khungtaskd/35: 1, last CPU#0:
 #0: ffffffff8fd588e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by kworker/u9:6/1112: 3, on CPU#0:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000658fc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff91256580 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
locks held by dhcpcd/5341: 1, on CPU#0:
 #0: ffffffff91256580 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x2fb/0x1c50
locks held by getty/5426: 2, on CPU#0:
 #0: ffff88810f7270a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034832e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by udevd/13843: 1, on CPU#0:
 #0: ffff88816cebe350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
locks held by kworker/0:11/22154: 4, on CPU#0:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000387fc40 ((work_completion)(&helper->damage_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffc9000387f770 (crtc_ww_class_acquire){+.+.}-{0:0}, at: drm_atomic_helper_dirtyfb+0x106/0xfd0
 #3: ffffc9000387f798 (crtc_ww_class_mutex){+.+.}-{4:4}, at: drm_atomic_helper_dirtyfb+0x106/0xfd0
locks held by kworker/u8:3/23329: 8, last CPU#0:
 #0: ffff8881012d5940 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90004967c40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffffff91247d48 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf5/0x810
 #3: ffffffff91256580 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0xd0/0x760
 #4: ffff8881012d42a0 (&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x3f/0x140
 #5: ffff8881012d4180 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x4e/0x140
 #6: ffff8881012d4210 (&root->kernfs_iattr_rwsem){++++}-{4:4}, at: __kernfs_remove+0x174/0x910
 #7: ffffffff8fd588e0 (rcu_read_lock){....}-{1:3}, at: kernfs_root+0x1c/0x230
locks held by syz-executor/24820: 1, on CPU#0:
 #0: ffffffff91256580 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30
locks held by syz.0.3483/24879: 1, last CPU#0:
 #0: ffffffff8fd588e0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x8f/0x2550
locks held by syz-executor/24889: 4, last CPU#0:
 #0: ffff88811fc12460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811aea56f8 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: filename_create+0x200/0x370
 #2: ffffffff904f32f8 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_path_perm+0x251/0x560
 #3: ffffffff8fd588e0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x8f/0x2550

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 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+0xfd2/0x1030
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
