INFO: task syz-executor:23584 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:23416 pid:23584 tgid:23584 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7bf/0x1550
 del_device_store+0xd6/0x370
 kernfs_fop_write_iter+0x3a4/0x540
 vfs_write+0x612/0xba0
 ksys_write+0x150/0x270
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f03ceb5d68e
RSP: 002b:00007ffc81296888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000055558c45d500 RCX: 00007f03ceb5d68e
RDX: 0000000000000001 RSI: 00007ffc81296910 RDI: 0000000000000005
RBP: 00007f03cec336f2 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc81296910 R14: 00007f03cf944620 R15: 0000000000000003
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Not tainted syzkaller #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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 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: 23549 Comm: kworker/R-wg-cr Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
RIP: 0010:ktime_get_update_offsets_now+0x36d/0x3e0
Code: ff ff 48 8b 3c 24 e8 c2 0d 80 00 e9 3f fe ff ff e8 c8 8b 12 00 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 ef e8 d9 0c 80 00 4d 8b 5d 00 4c 89 ef 2e e8 dc b1 fd
RSP: 0018:ffffc90000a07c18 EFLAGS: 00000046
RAX: 1ffffffff1cf7270 RBX: 000000000001e03c RCX: dffffc0000000000
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88823c6283e8 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000140f7c R12: dffffc0000000000
R13: ffffffff8e7b9380 R14: 1ffff110478c5041 R15: 00000090f5e13d8d
FS:  0000000000000000(0000) GS:ffff8882a9253000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb391388200 CR3: 000000000e746000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 hrtimer_interrupt+0x133/0x910
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x21d/0x350
Code: 00 00 e9 32 ff ff ff e8 f1 80 0c 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db eb 9a 11 48 3b 44 24 58 75 33 fb <48> 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d e9 c0 81 0f 0a cc 48 8d
RSP: 0018:ffffc90000a07ea0 EFLAGS: 00000246
RAX: 60332518bc860700 RBX: 0000000000000000 RCX: 0000000000000101
RDX: 0000000000000000 RSI: ffffffff8c295400 RDI: ffffffff8c2953c0
RBP: ffffffff8176b21f R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000a08038 R11: ffffffff81b128a0 R12: 0000000000000002
R13: ffffffff8e959ba0 R14: 0000000000000000 R15: 0000000000000000
 unwind_next_frame+0xac/0x2550
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x40/0x50
 __kasan_slab_free+0x5c/0x80
 kmem_cache_free+0x182/0x650
 nft_synproxy_eval_v4+0x383/0x530
 nft_synproxy_do_eval+0x335/0x550
 nft_do_chain+0x48d/0x1b10
 nft_do_chain_inet+0x360/0x4b0
 nf_hook_slow+0xc5/0x220
 NF_HOOK+0x21f/0x3c0
 NF_HOOK+0x336/0x3c0
 process_backlog+0xa34/0x1860
 __napi_poll+0xaa/0x330
 net_rx_action+0x61d/0xf50
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__local_bh_enable_ip+0xd8/0x130
Code: 8b e8 1c d5 26 0a 65 66 8b 05 2c 22 b5 11 66 85 c0 75 32 bf 01 00 00 00 e8 95 f0 0b 00 e8 b0 be 46 00 fb 65 8b 05 08 22 b5 11 <85> c0 75 05 e8 0f c1 ab ff 5b 41 5e c3 cc cc cc cc cc 90 0f 0b 90
RSP: 0018:ffffc90003edfa50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8c295400 RDI: ffffffff8187ae20
RBP: dffffc0000000000 R08: ffffffff9031acf7 R09: 1ffffffff206359e
R10: dffffc0000000000 R11: fffffbfff206359f R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff867e828a R15: ffff888029e293d0
 wg_packet_tx_worker+0x253/0x7e0
 process_scheduled_works+0xa8e/0x14e0
 rescuer_thread+0x7b6/0x10b0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
