INFO: task udevd:5846 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:22120 pid:5846  tgid:5846  ppid:5281   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 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+0x92/0xef0
 bdev_disk_changed+0x765/0x14c0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x7ce/0x1420
 vfs_open+0x3b/0x340
 path_openat+0x3486/0x3e20
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4931b169a4
RSP: 002b:00007ffc4b5fe9b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055eb8929a780 RCX: 00007f4931b169a4
RDX: 00000000000a0800 RSI: 000055eb89282850 RDI: 00000000ffffff9c
RBP: 000055eb89282850 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055eb892a1fe0 R14: 0000000000000001 R15: 000055eb8927a910
 </TASK>
INFO: task syz.0.6150:21206 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.6150      state:D stack:25304 pid:21206 tgid:21205 ppid:5838   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 bdev_open+0xe0/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x7ce/0x1420
 vfs_open+0x3b/0x340
 path_openat+0x3486/0x3e20
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52e955b58e
RSP: 002b:00007f52ea3c7b28 EFLAGS: 00000246
 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f52ea3c86c0 RCX: 00007f52e955b58e
RDX: 0000000000000000 RSI: 00007f52ea3c7c00 RDI: ffffffffffffff9c
RBP: 00007f52ea3c7c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f52e9816038 R14: 00007f52e9815fa0 R15: 00007fff420434d8
 </TASK>
INFO: task syz.0.6150:21209 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.6150      state:D
 stack:28184 pid:21209 tgid:21205 ppid:5838   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 bdev_open+0xe0/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x7ce/0x1420
 vfs_open+0x3b/0x340
 path_openat+0x3486/0x3e20
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52e955b58e
RSP: 002b:00007f52ea3a6b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f52ea3a76c0 RCX: 00007f52e955b58e
RDX: 0000000000000000 RSI: 00007f52ea3a6c00 RDI: ffffffffffffff9c
RBP: 00007f52ea3a6c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f52e9816128 R14: 00007f52e9816090 R15: 00007fff420434d8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/36:
 #0: ffffffff8e341ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
9 locks held by kworker/u10:3/66:
 #0: ffff88823c63a918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffffc90001787bc0 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffff88823c6260d8 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1ae/0xf30
 #3: ffffffff99f96cf8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x83/0x580
 #4: ffffffff8e1ecaa8 (text_mutex){+.+.}-{4:4}, at: arch_jump_label_transform_apply+0x17/0x30
 #5: ffffffff8e341ae0 (rcu_read_lock){....}-{1:3}, at: ___pte_offset_map+0x29/0x240
 #6: ffff888100081078 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: __pte_offset_map_lock+0x13d/0x210
 #7: ffff888169ca7920 (&(&vblank->seqlock)->lock){-.-.}-{3:3}, at: store_vblank+0xe5/0x220
 #8: ffff888169ca78d8 (&____s->seqcount#7){----}-{0:0}, at: drm_update_vblank_count+0x657/0x850
2 locks held by acpid/5266:
 #0: ffff8881bd9e9160 (&mousedev->mutex#2){+.+.}-{4:4}, at: mousedev_open_device+0x27/0x150
 #1: ffff88811223f2c0 (&dev->mutex#2){+.+.}-{4:4}, at: input_open_device+0x50/0x3b0
2 locks held by getty/5658:
 #0: ffff8881768c40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
1 lock held by udevd/5846:
 #0: ffff888107326358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
3 locks held by udevd/13353:
 #0: ffff8881bd9e8118 (&evdev->mutex){+.+.}-{4:4}, at: evdev_release+0x706/0x800
 #1: ffff88811223f2c0 (&dev->mutex#2){+.+.}-{4:4}, at: input_close_device+0x4c/0x280
 #2: ffffffff8e347638 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
1 lock held by syz.0.6150/21206:
 #0: ffff888107326358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by syz.0.6150/21209:
 #0: ffff888107326358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
6 locks held by kworker/1:6/22385:
 #0: ffff8881688a1948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90003587bc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffff88810b4d5198 (&dev->mutex){....}-{4:4}, at: hub_event+0x17f/0x4f30
 #3: ffff88811077f198 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0xf8/0x990
 #4: ffff88811223b160 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x800
 #5: ffff88811223f2c0 (&dev->mutex#2){+.+.}-{4:4}, at: __input_unregister_device+0x31/0x640

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 36 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0xf90/0xfe0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 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: 21705 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__switch_to_asm+0x1/0x70
Code: 5b 41 5a 41 59 41 58 58 59 5a 5e 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <53> 41 54 41 55 41 56 41 57 48 89 a7 e8 18 00 00 48 8b a6 e8 18 00
RSP: 0018:ffffc90008eff9b0 EFLAGS: 00000046
RAX: 1ffff110478c7522 RBX: ffff888174cfd7c0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffff8881604f0000 RDI: ffff888174cfd7c0
RBP: ffffc90008effbb8 R08: ffff88816e971903 R09: 1ffff1102dd2e320
R10: dffffc0000000000 R11: ffffed102dd2e321 R12: dffffc0000000000
R13: ffff8881604f0000 R14: ffff88823c63a910 R15: ffff888174cfed94
FS:  0000555588b22500(0000) GS:ffff8882a9a09000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31019ff8 CR3: 00000001a5fc4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 do_nanosleep+0x1c2/0x620
 hrtimer_nanosleep+0x188/0x390
 __se_sys_clock_nanosleep+0x35b/0x3b0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa0e535b58e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffe4ee20e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000555588b22500 RCX: 00007fa0e535b58e
RDX: 00007ffe4ee20eb0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe4ee20f1c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001388
R13: 00000000000927c0 R14: 00000000000a9104 R15: 00007ffe4ee20f70
 </TASK>
