INFO: task udevd:5627 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:25128 pid:5627  tgid:5627  ppid:5059   task_flags:0x400140 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 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+0x2e44/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f82dc3169a4
RSP: 002b:00007ffc237664e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055fadc7d49c0 RCX: 00007f82dc3169a4
RDX: 00000000000a0800 RSI: 000055fadc814a50 RDI: 00000000ffffff9c
RBP: 000055fadc814a50 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055fadc7c9950 R14: 0000000000000001 R15: 000055fadc7b2910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
4 locks held by kworker/u9:4/1114:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc90006f07c40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff9002d140 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
 #3: ffffffff8eb5ff68 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
2 locks held by getty/5438:
 #0: ffff88817180d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
1 lock held by udevd/5611:
 #0: ffff888109857350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
1 lock held by udevd/5627:
 #0: ffff888109897350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70

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

NMI backtrace for cpu 1
CPU: 1 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+0x17a/0x380
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 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: 31825 Comm: syz.1.7547 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:kasan_check_range+0x3f/0x2c0
Code: ae 01 00 00 4c 8d 04 37 49 39 f8 0f 82 36 02 00 00 49 b9 00 00 00 00 00 80 ff ff eb 0d cc cc cc 49 b9 00 00 00 00 00 00 00 ff <4c> 39 cf 0f 82 14 02 00 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00
RSP: 0018:ffffc9000a3d6d68 EFLAGS: 00000202
RAX: ffffc9000a3d7901 RBX: 0000000000000010 RCX: ffffffff81778ef4
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc9000a3d6eb8
RBP: 0000000000000000 R08: ffffc9000a3d6ec8 R09: ffff800000000000
R10: 0000000000000000 R11: ffffffff8eb59c60 R12: dffffc0000000000
R13: ffffffff90fefee8 R14: ffffc9000a3d6eb8 R15: ffffc9000a3d6eb0
FS:  00007fe6cefcb6c0(0000) GS:ffff88818d950000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4287ed9b8 CR3: 00000001bdfd0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __asan_memset+0x22/0x50
 unwind_next_frame+0xd04/0x2550
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 save_stack+0x122/0x230
 __reset_page_owner+0x71/0x1f0
 free_unref_folios+0xd84/0x14a0
 folios_put_refs+0x9e9/0xb30
 shmem_undo_range+0x4e6/0x15d0
 shmem_evict_inode+0x280/0xa80
 evict+0x624/0xb50
 dentry_kill+0x1b9/0x880
 finish_dput+0x1a/0x260
 __fput+0x675/0xa50
 task_work_run+0x1d9/0x270
 do_exit+0x73a/0x2360
 do_group_exit+0x22d/0x2f0
 get_signal+0x121b/0x12c0
 arch_do_signal_or_restart+0xbb/0x860
 exit_to_user_mode_loop+0x104/0x730
 do_syscall_64+0x353/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe6ce19de99
Code: Unable to access opcode bytes at 0x7fe6ce19de6f.
RSP: 002b:00007fe6cefcb0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe6ce426098 RCX: 00007fe6ce19de99
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe6ce426098
RBP: 00007fe6ce426090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe6ce426128 R14: 00007ffe1dd5ce50 R15: 00007ffe1dd5cf38
 </TASK>
