INFO: task udevd:5837 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:5837  tgid:5837  ppid:5274   task_flags:0x400140 flags:0x00080802
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: 0033:0x7f072e9169a4
RSP: 002b:00007ffea2c67870 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055638bcf48a0 RCX: 00007f072e9169a4
RDX: 00000000000a0800 RSI: 000055638bcc7600 RDI: 00000000ffffff9c
RBP: 000055638bcc7600 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055638bcda800 R14: 0000000000000001 R15: 000055638bcc6910
 </TASK>
INFO: task udevd:6518 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:22360 pid:6518  tgid:6518  ppid:5274   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: 0033:0x7f072e9169a4
RSP: 002b:00007ffea2c67870 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055638bcd0950 RCX: 00007f072e9169a4
RDX: 00000000000a0800 RSI: 000055638bcc72c0 RDI: 00000000ffffff9c
RBP: 000055638bcc72c0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055638bce4370 R14: 0000000000000001 R15: 000055638bcc6910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/36:
 #0: ffffffff8e35a360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
5 locks held by kworker/0:2/787:
 #0: ffff888104a8ed48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90005a87bc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffff88816caa5198 (&dev->mutex){....}-{4:4}, at: hub_event+0x17f/0x4f30
 #3: ffff888102348198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450
 #4: ffff88810234a160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450
2 locks held by getty/5652:
 #0: ffff8881750810a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000355e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
1 lock held by udevd/5837:
 #0: ffff88810a04b358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by udevd/6518:
 #0: ffff88810a04f358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by udevd/11636:
 #0: ffff88810a0bb358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by syz.1.4848/29077:
 #0: ffff88810a04b358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by syz.8.5257/30634:
 #0: ffff888105b68370 (&fc->killsb){++++}-{4:4}, at: fuse_dev_do_write+0x2bc9/0x48d0
2 locks held by syz.8.5257/30635:
 #0: ffff888111f540e0 (&type->s_umount_key#67){+.+.}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff888105b68370 (&fc->killsb){++++}-{4:4}, at: fuse_kill_sb_anon+0xa2/0x270
5 locks held by syz.4.5263/30657:

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

NMI backtrace for cpu 1
CPU: 1 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 992 Comm: kworker/u9:5 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
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__lock_acquire+0x35e/0x2cf0
Code: 09 d4 41 09 cc 41 09 dc 45 89 64 c7 20 41 89 7c c7 24 4c 89 7c 24 20 4d 8d 2c c7 41 81 e4 ff 1f 00 00 4c 0f a3 25 02 4c 38 12 <73> 15 49 69 c4 c8 00 00 00 48 8d 80 b0 83 78 93 4c 8b 74 24 08 eb
RSP: 0018:ffffc90007acf230 EFLAGS: 00000003
RAX: 000000000000000f RBX: 0000000000020000 RCX: 0000000000000007
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: ffffffff8174c105 R09: ffffffff8e35a360
R10: ffffc90007acf538 R11: ffffffff81ae5d00 R12: 0000000000000007
R13: ffff88810a7a0ba8 R14: ffff88810a7a0000 R15: ffff88810a7a0b30
FS:  0000000000000000(0000) GS:ffff88818e323000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5c19279ff8 CR3: 000000016fb40000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 lock_acquire+0x106/0x330
 unwind_next_frame+0xc2/0x23c0
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5c/0x80
 kmem_cache_free+0x195/0x610
 skb_release_data+0x62d/0x7c0
 sk_skb_reason_drop+0x127/0x170
 ieee80211_iface_work+0xb25/0x12b0
 cfg80211_wiphy_work+0x2ab/0x450
 process_scheduled_works+0xaec/0x17a0
 worker_thread+0x89f/0xd90
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
