INFO: task syz.0.129:6180 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.129       state:D stack:21312 pid:6180  tgid:6180  ppid:5834   task_flags:0x40064c flags:0x00004002
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
 irqentry_exit_to_user_mode+0x81/0x120
 exc_general_protection+0x171/0x200
 asm_exc_general_protection+0x26/0x30
RIP: 0033:0x7f86be38e9b1
RSP: 002b:00002000000002b0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f86be5b5fa0 RCX: 00007f86be38e9a9
RDX: 00002000000002c0 RSI: 00002000000002b0 RDI: 0000000000200000
RBP: 00007f86be410d69 R08: 00002000000007c0 R09: 00002000000007c0
R10: 0000200000000300 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f86be5b5fa0 R15: 00007ffeac144c58
 </TASK>
INFO: task syz.1.131:6181 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.131       state:D stack:25096 pid:6181  tgid:6181  ppid:5829   task_flags:0x400040 flags:0x00004004
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
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd0afd8e9a9
RSP: 002b:00007ffcae8367c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fd0affb7ba0 RCX: 00007fd0afd8e9a9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fd0affb7ba0 R08: 0000000000000000 R09: 00000019ae836abf
R10: 00007fd0affb7ac0 R11: 0000000000000246 R12: 000000000000e10f
R13: 00007fd0affb6080 R14: ffffffffffffffff R15: 00007ffcae8368e0
 </TASK>
INFO: task syz.2.139:6202 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.139       state:D stack:28328 pid:6202  tgid:6201  ppid:5838   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 __tun_chr_ioctl+0x37a/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6cb98e9a9
RSP: 002b:00007ff6cc83a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff6cbbb5fa0 RCX: 00007ff6cb98e9a9
RDX: 0000200000000040 RSI: 00000000400454ca RDI: 0000000000000003
RBP: 00007ff6cba10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff6cbbb5fa0 R15: 00007ffeb1955948
 </TASK>
INFO: task syz.2.139:6204 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.139       state:D stack:28904 pid:6204  tgid:6201  ppid:5838   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 __tun_chr_ioctl+0x37a/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6cb98e9a9
RSP: 002b:00007ff6cc819038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff6cbbb6080 RCX: 00007ff6cb98e9a9
RDX: 0000000000000000 RSI: 00000000400454ce RDI: 0000000000000003
RBP: 00007ff6cba10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007ff6cbbb6080 R15: 00007ffeb1955948
 </TASK>
INFO: task syz.2.139:6205 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.139       state:D stack:28328 pid:6205  tgid:6201  ppid:5838   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 __tun_chr_ioctl+0x37a/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6cb98e9a9
RSP: 002b:00007ff6cc7f8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff6cbbb6160 RCX: 00007ff6cb98e9a9
RDX: 0000200000000040 RSI: 00000000400454ca RDI: 0000000000000004
RBP: 00007ff6cba10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff6cbbb6160 R15: 00007ffeb1955948
 </TASK>
INFO: task syz.0.140:6207 blocked for more than 144 seconds.
      Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.140       state:D stack:25656 pid:6207  tgid:6206  ppid:5834   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 rtnetlink_rcv_msg+0x71c/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 sock_write_iter+0x258/0x330
 vfs_write+0x54b/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f86be38e9a9
RSP: 002b:00007f86bf222038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f86be5b5fa0 RCX: 00007f86be38e9a9
RDX: 000000000000fe33 RSI: 0000200000000040 RDI: 0000000000000007
RBP: 00007f86be410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f86be5b5fa0 R15: 00007ffeac144c58
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/10:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900000d7bc0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: regdb_fw_cb+0x7d/0x1c0
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5658:
 #0: ffff8881070bf0a0 (&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
3 locks held by kworker/u8:3/5850:
 #0: ffff88801f229948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003e9fbc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30
3 locks held by kworker/0:4/5871:
 #0: ffff88801a481d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900044dfbc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0x95/0xf00
1 lock held by syz.0.129/6180:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
1 lock held by syz.1.131/6181:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
6 locks held by syz.1.131/6183:
1 lock held by syz.2.139/6202:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x37a/0x1df0
1 lock held by syz.2.139/6204:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x37a/0x1df0
1 lock held by syz.2.139/6205:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x37a/0x1df0
1 lock held by syz.0.140/6207:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x71c/0xb70
1 lock held by syz-executor/6210:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6216:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6218:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6227:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6233:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6236:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6243:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6249:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0
1 lock held by syz-executor/6251:
 #0: ffffffff8f51cdc8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x3b0/0x18b0

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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: 6183 Comm: syz.1.131 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900000075f8 EFLAGS: 00000206
RAX: ed6e1d5713776900 RBX: 0000000000000000 RCX: ed6e1d5713776900
RDX: 0000000000000000 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffffff8172aae5 R08: 0000000000000000 R09: ffffffff8172aae5
R10: ffffc900000077b8 R11: ffffffff81ad0050 R12: 0000000000000002
R13: ffffffff8e13f0e0 R14: 0000000000000000 R15: 0000000000000246
FS:  00007fd0b0b6d6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b019e09170 CR3: 0000000025bee000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 mac80211_hwsim_beacon_tx+0x3f0/0x860
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:__schedule+0x2ae/0x4d00
Code: 49 1c 04 00 75 1f c6 05 9d 49 1c 04 01 48 c7 c7 80 43 8a 8b be 5f 17 00 00 48 c7 c2 e0 4c 8a 8b e8 37 04 2f f6 4c 89 74 24 10 <0f> 1f 44 00 00 48 c7 c0 a0 ea a1 8f 48 c1 e8 03 42 0f b6 04 28 84
RSP: 0018:ffffc900064073c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90006400000 RCX: ed6e1d5713776900
RDX: 0000000000000000 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffc900064075d0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88804b03aac8
R13: dffffc0000000000 R14: ffff8881060a3980 R15: ffff8880b861f000
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_thunk+0x0/0x30
Code: 82 8c 00 48 c7 c0 a0 57 80 8b e9 4b bd 3d 0a 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> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 4a 0a 3c 0a
RSP: 0018:ffffc90006407758 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d998836 RDI: 00000000ffffffff
RBP: ffffc900064077f8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff8e8e2670 R15: 1ffff92000c80eec
 _raw_spin_unlock_irqrestore+0xfd/0x110
 stack_depot_save_flags+0x429/0x900
 save_stack+0x103/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xc71/0xe70
 __slab_free+0x326/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_kmalloc+0x22/0xb0
 __kmalloc_node_track_caller_noprof+0x271/0x4e0
 kmemdup_array+0x3f/0x80
 bpf_prepare_filter+0xd67/0x12c0
 sk_attach_filter+0x24/0x140
 tun_attach_filter+0x180/0x2a0
 __tun_chr_ioctl+0x15d9/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd0afd8e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0b0b6d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd0affb5fa0 RCX: 00007fd0afd8e9a9
RDX: 0000200000000040 RSI: 00000000401054d5 RDI: 0000000000000006
RBP: 00007fd0afe10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd0affb5fa0 R15: 00007ffcae836668
 </TASK>
