INFO: task udevd:26543 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:26543 tgid:26543 ppid:5263   task_flags:0x400140 flags:0x00080002
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: 0033:0x7f87dd1169a4
RSP: 002b:00007fff94518a10 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055781fa02780 RCX: 00007f87dd1169a4
RDX: 00000000000a0800 RSI: 000055781fa036d0 RDI: 00000000ffffff9c
RBP: 000055781fa036d0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055781f9f6800 R14: 0000000000000001 R15: 000055781f9e2910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cb20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5641:
 #0: ffff88810f6060a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
4 locks held by kworker/u10:18/11676:
 #0: ffff88823c63ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff88823c624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff88823c6346b8 (krc.lock){..-.}-{2:2}, at: kvfree_rcu_bulk+0x103/0x1b0
 #3: ffffffff8e95cb20 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550
1 lock held by udevd/26543:
 #0: ffff88816d758350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30

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

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: 14272 Comm: syz.2.11682 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:debug_check_no_obj_freed+0x21b/0x550
Code: 48 89 04 24 4c 8d 7d 18 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 12 4c 89 ff e8 b2 81 75 fd 48 ba 00 00 00 00 00 fc ff df 4d 8b 3f <4d> 39 ef 0f 92 c0 4d 39 fc 0f 96 c1 08 c1 75 90 4c 8d 6d 10 4c 89
RSP: 0018:ffffc900029d7438 EFLAGS: 00000046
RAX: 1ffff11021f79ab2 RBX: 0000000000000004 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc900029d73a0
RBP: ffff88810fbcd578 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200053ae74 R12: ffff8881b8dcba00
R13: ffff8881b8dcb800 R14: 1ffff11021f79aaf R15: ffff8881b489cd00
FS:  00007fcbfbc3c6c0(0000) GS:ffff8882a922b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1f3d3e7158 CR3: 0000000112422000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kfree+0x13e/0x640
 genradix_free_recurse+0x5d/0xa0
 genradix_free_recurse+0x5d/0xa0
 sctp_stream_free+0x262/0x2a0
 sctp_association_free+0x26d/0x7f0
 sctp_do_sm+0x3f6b/0x5cf0
 sctp_primitive_SHUTDOWN+0x98/0xc0
 sctp_close+0x407/0x940
 inet_release+0x143/0x190
 sock_close+0xc3/0x240
 __fput+0x44f/0xa60
 task_work_run+0x1d9/0x270
 get_signal+0x11eb/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcbfad9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcbfbc3c028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000001 RBX: 00007fcbfb015fa0 RCX: 00007fcbfad9c819
RDX: 0000000000000001 RSI: 0000200000000080 RDI: 0000000000000006
RBP: 00007fcbfae32c91 R08: 0000200000000000 R09: 000000000000001c
R10: 0000000000000094 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcbfb016038 R14: 00007fcbfb015fa0 R15: 00007fffc9e35e68
 </TASK>
