INFO: task kworker/1:3:5128 blocked for more than 143 seconds.
      Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3     state:D stack:20528 pid:5128  tgid:5128  ppid:2      flags:0x00004000
Workqueue: events rfkill_sync_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 rfkill_sync_work+0x23/0x220 net/rfkill/core.c:1059
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
INFO: task kworker/1:5:5168 blocked for more than 143 seconds.
      Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5     state:D stack:20496 pid:5168  tgid:5168  ppid:2      flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
INFO: task syz-executor.2:11678 blocked for more than 143 seconds.
      Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:25648 pid:11678 tgid:11678 ppid:7792   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa7b/0xc90 kernel/workqueue.c:4205
 __cancel_work_sync+0x330/0x6d0 kernel/workqueue.c:4304
 rfkill_unregister+0x96/0x230 net/rfkill/core.c:1143
 nfc_unregister_device+0x96/0x2a0 net/nfc/core.c:1167
 virtual_ncidev_close+0x59/0x90 drivers/nfc/virtual_ncidev.c:168
 __fput+0x429/0x8a0 fs/file_table.c:422
 __do_sys_close fs/open.c:1556 [inline]
 __se_sys_close fs/open.c:1541 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1541
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fd1a947cd5a
RSP: 002b:00007fd1a96cfb10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fd1a947cd5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000032 R08: 0000001b30e20000 R09: 000000000000021c
R10: 000000008136099b R11: 0000000000000293 R12: 00007fd1a9000f28
R13: ffffffffffffffff R14: 00007fd1a9000000 R15: 0000000000040044
 </TASK>
INFO: task syz-executor.4:11685 blocked for more than 144 seconds.
      Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:24600 pid:11685 tgid:11681 ppid:11468  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 device_lock include/linux/device.h:990 [inline]
 nfc_dev_down net/nfc/core.c:143 [inline]
 nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179
 rfkill_set_block+0x1f1/0x440 net/rfkill/core.c:346
 rfkill_fop_write+0x5bb/0x790 net/rfkill/core.c:1305
 vfs_write+0x2a4/0xcb0 fs/read_write.c:588
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f374b87de69
RSP: 002b:00007f374c55c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f374b9abf80 RCX: 00007f374b87de69
RDX: 0000000000000008 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007f374b8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f374b9abf80 R15: 00007f374bacfa48
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by syslogd/4505:
 #0: ffff88807c2a2580 (&u->iolock){+.+.}-{3:3}, at: __unix_dgram_recvmsg+0x257/0x1450 net/unix/af_unix.c:2426
 #1: ffff8880b9428988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a7/0x770 kernel/sched/psi.c:976
 #2: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #2: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #2: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: filemap_get_entry+0x127/0x4e0 mm/filemap.c:1813
2 locks held by getty/4820:
 #0: ffff88802a6160a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:3/5128:
 #0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
 #0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
 #1: ffffc900047efd00 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
 #1: ffffc900047efd00 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335
 #2: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x23/0x220 net/rfkill/core.c:1059
3 locks held by kworker/1:5/5168:
 #0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
 #0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
 #1: ffffc9000497fd00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
 #1: ffffc9000497fd00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335
 #2: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182
1 lock held by syz-executor.2/11678:
 #0: ffff888062377100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #0: ffff888062377100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x63/0x2a0 net/nfc/core.c:1165
2 locks held by syz-executor.4/11685:
 #0: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1a9/0x790 net/rfkill/core.c:1297
 #1: ffff888062377100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
 #1: ffff888062377100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline]
 #1: ffff888062377100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179
2 locks held by syz-executor.2/11834:
 #0: ffff88807c521118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x33/0x720 drivers/bluetooth/hci_vhci.c:479
 #1: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x34/0x8c0 net/rfkill/core.c:1075
2 locks held by syz-executor.4/11836:
 #0: ffff88807c523918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x33/0x720 drivers/bluetooth/hci_vhci.c:479
 #1: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x34/0x8c0 net/rfkill/core.c:1075
2 locks held by syz-executor.3/11972:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
 #1: ffffffff8f65ee08 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x131/0x850 net/rfkill/core.c:1182
1 lock held by syz-executor.3/11977:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.3/11980:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.1/11991:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.0/11999:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.3/12003:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.1/12004:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129
1 lock held by syz-executor.0/12005:
 #0: ffffffff8e905f48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129

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

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfb0/0xff0 kernel/hung_task.c:379
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5131 Comm: kworker/0:6 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:kasan_check_range+0x0/0x290 mm/kasan/generic.c:188
Code: c7 c6 47 dc 8d 8d e8 0f 8d e5 ff 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00
RSP: 0018:ffffc9000482f530 EFLAGS: 00000246
RAX: ffffffff8140bf5f RBX: 0000000000000060 RCX: ffffffff8140bf6e
RDX: 0000000000000001 RSI: 0000000000000060 RDI: ffffc9000482f5c0
RBP: ffffc9000482f5c0 R08: ffffffff894247b7 R09: 0000000000000000
R10: ffffc9000482f740 R11: fffffbfff259c2bd R12: 0000000000000000
R13: ffffffff8180e0a0 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005635b0cbb600 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __asan_memset+0x23/0x50 mm/kasan/shadow.c:84
 __unwind_start+0x3e/0x7c0 arch/x86/kernel/unwind_orc.c:688
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc_node+0x194/0x380 mm/slub.c:3888
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:658
 alloc_skb include/linux/skbuff.h:1318 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
 nsim_dev_trap_report_work+0x254/0xaa0 drivers/net/netdevsim/dev.c:850
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>