INFO: task kworker/u9:2:1601 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:2    state:D stack:24240 pid:1601  tgid:1601  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound idle_cull_fn
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7bf/0x1550
 idle_cull_fn+0xd8/0x740
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task kworker/R-wg-cr:1849 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/R-wg-cr state:D stack:27320 pid:1849  tgid:1849  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (wg-crypt-wg0)
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7bf/0x1550
 rescuer_thread+0xbda/0x10b0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
4 locks held by kworker/0:1/10:
 #0: ffff8880373e5540 ((wq_completion)wg-kex-wg0#18){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc900000f7c40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffff888037219440 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x1a2/0x9b0
 #3: ffff888119813ea0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x59c/0x9b0
6 locks held by kworker/1:0/24:
2 locks held by kworker/1:2/33:
1 lock held by khungtaskd/35:
 #0: ffffffff8e959c20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
3 locks held by kworker/u9:3/1113:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc90007a57c40 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: idle_cull_fn+0xd8/0x740
2 locks held by dhcpcd/5350:
 #0: ffffffff8fdcba20 (vlan_ioctl_mutex){+.+.}-{4:4}, at: sock_ioctl+0x5eb/0x7e0
 #1: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: vlan_ioctl_handler+0xf0/0x630
2 locks held by getty/5440:
 #0: ffff888109aea0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
7 locks held by kworker/u8:2/5441:
 #0: ffff8881012bd940 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc900058cfc40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8fddc068 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf5/0x810
 #3: ffff8881ad905128 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x129/0x420
 #4: ffff8881ad900258 (&devlink->lock_key#8){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x142/0x420
 #5: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: nsim_destroy+0x16b/0x800
 #6: ffffffff8e7e75b0 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0xcac/0x2150
2 locks held by kworker/1:7/7143:
2 locks held by kworker/1:8/7145:
3 locks held by kworker/1:9/7146:
3 locks held by kworker/1:10/13327:
2 locks held by kworker/1:11/14420:
2 locks held by kworker/1:13/14425:
3 locks held by kworker/1:14/14429:
3 locks held by kworker/1:15/14430:
2 locks held by kworker/1:16/32163:
3 locks held by kworker/u9:2/1601:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc9000451fc40 ((work_completion)(&pool->idle_cull_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: idle_cull_fn+0xd8/0x740
1 lock held by kworker/u9:6/1634:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390
1 lock held by kworker/R-wg-cr/1647:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1648:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1649:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390
1 lock held by kworker/R-wg-cr/1655:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390
1 lock held by kworker/R-wg-cr/1658:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x31/0x390
1 lock held by kworker/R-wg-cr/1661:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1662:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1663:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1849:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1851:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1853:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1859:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1860:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1861:
1 lock held by kworker/R-wg-cr/1866:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1867:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
1 lock held by kworker/R-wg-cr/1868:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0xbda/0x10b0
7 locks held by syz-executor/2052:
 #0: ffff88811075c450 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0
 #1: ffff88803a759480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540
 #2: ffff88816da7e008 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22b/0x540
 #3: ffffffff8f667720 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd6/0x370
 #4: ffff88811f8a8128 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb9/0x880
 #5: ffff88811f8af258 (&devlink->lock_key#2){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x170
 #6: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_dev_lock+0x257/0x2f0
1 lock held by kworker/R-bond0/2074:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2078:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2079:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2080:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-bond0/2081:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2085:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-bond0/2086:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2087:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2088:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2093:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2094:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2095:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-bond0/2146:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-bond0/2148:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2154:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2156:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2163:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2164:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2165:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
1 lock held by kworker/R-wg-cr/2166:
 #0: ffffffff8e7f6e60 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x80/0x10b0
5 locks held by syz-executor/2168:
 #0: ffffffff8fddc068 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x4e2/0x720
 #1: ffffffff8fb3ade8 (devices_rwsem){++++}-{4:4}, at: rdma_dev_init_net+0x200/0x2f0
 #2: ffffffff8fb3afa8 (rdma_nets_rwsem){++++}-{4:4}, at: rdma_dev_init_net+0x238/0x2f0
 #3: ffff888020be8fe0 (&device->compat_devs_mutex){+.+.}-{4:4}, at: add_one_compat_dev+0xf0/0x650
 #4: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: ib_get_eth_speed+0x173/0x7f0
2 locks held by syz-executor/2175:
 #0: ffffffff8fddc068 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x4e2/0x720
 #1: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: ip_tunnel_init_net+0x2d5/0x820
1 lock held by syz-executor/2193:
 #0: ffffffff8fdeac00 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a3/0x1bd0

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

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/0x380
 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: 24 Comm: kworker/1:0 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-wg1 wg_packet_tx_worker
RIP: 0010:__lock_acquire+0x52e/0x2cf0
Code: 00 48 83 c3 28 41 89 c4 49 39 cf 0f 8d a4 00 00 00 49 83 ff 31 0f 83 83 00 00 00 8b 03 25 ff 1f 00 00 48 0f a3 05 f2 d9 a4 12 <73> 10 48 69 c0 c8 00 00 00 48 8d 88 10 05 e8 93 eb 32 83 3d b9 69
RSP: 0018:ffffc90000a077f8 EFLAGS: 00000003
RAX: 0000000000000007 RBX: ffff888160a98c38 RCX: 0000000000000005
RDX: 0000000000000003 RSI: 0000000000000003 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8176f21f R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 0000000000000003
R13: ffff888160a98c68 R14: ffff888160a98000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8882a922c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c278460 CR3: 000000000e746000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 lock_acquire+0x106/0x350
 unwind_next_frame+0xac/0x2550
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x2a0/0x5f0
 dst_alloc+0x105/0x170
 ip_route_output_key_hash_rcu+0x14ac/0x2720
 ip_route_output_key_hash+0x18d/0x2a0
 ip_route_output_flow+0x2a/0x150
 ip_route_me_harder+0x762/0xfe0
 synproxy_send_tcp+0x347/0x670
 synproxy_send_client_synack+0x89b/0xde0
 nft_synproxy_eval_v4+0x362/0x4e0
 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
 do_softirq+0x76/0xd0
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x130
 wg_packet_tx_worker+0x59b/0x7e0
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
