INFO: task udevd:9440 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:21928 pid:9440  tgid:9440  ppid:5280   task_flags:0x400040 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 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+0xdf3/0x1970
 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: 0033:0x7fc2ef9169a4
RSP: 002b:00007ffdb635d5c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056543b3de1a0 RCX: 00007fc2ef9169a4
RDX: 00000000000a0800 RSI: 000056543b3e4fd0 RDI: 00000000ffffff9c
RBP: 000056543b3e4fd0 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056543b3d1a60 R14: 00007ffdb635d66c R15: 000056543b3c0910
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_exp_gp_kthr/18:
 #0: ffff88804b039f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5658:
 #0: ffff8880260980a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by kworker/0:4/5905:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003ebfbc0 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
1 lock held by udevd/9440:
 #0: ffff888021a4f358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
8 locks held by syz-executor/23967:
 #0: ffff888107ee4428 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x211/0xa90
 #1: ffff8881238e7c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1e0/0x4f0
 #2: ffff8881080f4008 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x203/0x4f0
 #3: ffffffff8eda93c8 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x360
 #4: ffff888108bbd0e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x7c0
 #5: ffff888108bbf250 (&devlink->lock_key#5){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160
 #6: ffffffff8f51bb48 (rtnl_mutex){+.+.}-{4:4}, at: nsim_destroy+0xdb/0x670
 #7: ffffffff8e144c78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
1 lock held by syz.2.4724/23987:
 #0: ffffffff8e144c78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
1 lock held by syz.0.4726/23994:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #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+0xfee/0x1030
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 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: 23987 Comm: syz.2.4724 Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #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+0x153/0x470
Code: 00 00 48 8b 44 24 38 48 ff c8 0f 84 40 ff ff ff 48 89 44 24 38 4c 89 e0 48 c1 e8 0c 48 b9 eb 83 b5 80 46 86 c8 61 48 0f af c1 <48> c1 e8 2f 83 e0 f8 48 8d 1c c0 48 81 c3 00 67 c7 99 48 8d 3c c0
RSP: 0018:ffffc900083a7800 EFLAGS: 00000a87
RAX: ac2ae7c8b4f4cfc5 RBX: ffff88801ff0f000 RCX: 61c8864680b583eb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900083a7880
RBP: 0000000000000000 R08: ffffc900083a787f R09: 0000000000000000
R10: ffffc900083a7858 R11: fffff52001074f10 R12: ffff88801ff0f000
R13: ffff88801ff10000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fdc5f8546c0(0000) GS:ffff8880b8626000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f8b372f038 CR3: 00000000276a2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __free_frozen_pages+0x509/0xe70
 vfree+0x25a/0x400
 kcov_close+0x28/0x50
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x22e0
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc5e98e9a9
Code: Unable to access opcode bytes at 0x7fdc5e98e97f.
RSP: 002b:00007fdc5f8540e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fdc5ebb6088 RCX: 00007fdc5e98e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fdc5ebb6088
RBP: 00007fdc5ebb6080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdc5ebb608c
R13: 0000000000000000 R14: 00007ffcaba616b0 R15: 00007ffcaba61798
 </TASK>
