INFO: task syz-executor:5835 blocked for more than 145 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21528 pid:5835  tgid:5835  ppid:1      task_flags:0x40054c flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 tun_chr_close+0x3e/0x1c0
 __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: 0033:0x7f84be39081a
RSP: 002b:00007ffdf857cdb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: 0000000000000000 RBX: 00007ffdf857ce40 RCX: 00007f84be39081a
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000558 R09: ffffffffffffff00
R10: 00007f84be581a60 R11: 0000000000000206 R12: 00007f84be581a00
R13: 00007ffdf857cddc R14: 0000000000000000 R15: 00007f84be582e40
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/u8:1/13:
3 locks held by kworker/1:0/24:
 #0: ffff88801a481d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900001c7bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51d808 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0x95/0xf00
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
1 lock held by kcompactd0/38:
1 lock held by klogd/5269:
2 locks held by udevd/5280:
1 lock held by dhcpcd/5576:
2 locks held by getty/5655:
 #0: ffff888021af90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000292b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by syz-executor/5814:
1 lock held by syz-executor/5829:
 #0: ffffffff8e144b40 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x570
2 locks held by udevd/5830:
1 lock held by syz-executor/5836:
 #0: ffffffff8f51d808 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
3 locks held by kworker/0:3/5867:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900032a7bc0 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51d808 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20
2 locks held by udevd/6501:
3 locks held by kworker/u9:7/6784:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90002bf7bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51d808 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
3 locks held by kworker/1:8/6792:
 #0: ffff88801a481d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900033e7bc0 ((crda_timeout).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51d808 (rtnl_mutex){+.+.}-{4:4}, at: crda_timeout_work+0x15/0x50
1 lock held by syz-executor/6796:
2 locks held by syz-executor/6798:
3 locks held by syz-executor/6801:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 40 Comm: kworker/u10:2 Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0 PREEMPT(full) 
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:__queue_work+0x542/0xfe0
Code: 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 32 df 98 00 44 89 6c 24 04 4d 03 37 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 f7 e8 14 df 98 00 4d 8b 2e e8 ac 65 e4 09 89 c3 31 ff
RSP: 0018:ffffc900001e0b08 EFLAGS: 00000046
RAX: 1ffffd1ffff830b1 RBX: ffff888021a6a1c8 RCX: ffff8881006a8000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000008
RBP: 1ffff1100434d438 R08: ffffffff92a6cc27 R09: 1ffffffff254d984
R10: dffffc0000000000 R11: fffffbfff254d985 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffe8ffffc18588 R15: ffffffff8dbbec78
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd54080758 CR3: 0000000110034000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x646/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:stack_trace_consume_entry+0x71/0x280
Code: 15 00 84 c0 0f 85 22 01 00 00 45 3b 0e 73 3a 48 8d 5f 0c 49 89 df 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 47 01 00 00 44 8b 23 <45> 85 e4 74 21 41 ff cc 41 0f b6 04 17 84 c0 0f 85 78 01 00 00 44
RSP: 0018:ffffc900006eeaf8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900006eec0c RCX: 569200c9d57ff400
RDX: dffffc0000000000 RSI: ffffffff81ad034c RDI: ffffc900006eec00
RBP: 1ffff920000ddd82 R08: ffffc900006eec10 R09: 0000000000000000
R10: ffffc900006eeb98 R11: ffffffff81ad03a0 R12: 0000000000000001
R13: 1ffff920000ddd81 R14: ffffc900006eec08 R15: 1ffff920000ddd81
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 cfg80211_inform_single_bss_data+0x905/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b20
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_ibss_rx_queued_mgmt+0xa36/0x2ae0
 ieee80211_iface_work+0x806/0xfe0
 cfg80211_wiphy_work+0x2df/0x460
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
