INFO: task syz.0.1245:8918 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.1245      state:D stack:27160 pid:8918  tgid:8916  ppid:5595   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x16f9/0x5500
 rt_mutex_schedule+0x76/0xf0
 rt_mutex_slowlock_block+0x508/0x680
 rt_mutex_slowlock+0x2dc/0x780
 mutex_lock_nested+0x168/0x1d0
 bdev_open+0xe0/0xcc0
 blkdev_open+0x485/0x620
 do_dentry_open+0x83d/0x13e0
 vfs_open+0x3b/0x350
 path_openat+0x2e43/0x38a0
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9bc414d60e
RSP: 002b:00007f9bc23e5b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9bc23e66c0 RCX: 00007f9bc414d60e
RDX: 0000000000002000 RSI: 00007f9bc23e5c00 RDI: ffffffffffffff9c
RBP: 00007f9bc23e5c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f9bc4406038 R14: 00007f9bc4405fa0 R15: 00007ffd0b5374d8
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
 #0: ffff888174d20938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90000117c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
 #2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x124/0x1680
8 locks held by kworker/1:0/32:
 #0: ffff88801aaf1d38 ((wq_completion)wg-kex-wg2#11){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90000a6fc40 ((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_one_work+0x8be/0x1630
 #2: ffff8881115e0ea0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_begin_session+0x38/0xbe0
 #3: ffff88823c640640 ((&pcs->lock)){+.+.}-{3:3}, at: __pcs_replace_empty_main+0x538/0x720
 #4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x10c/0x2b0
 #5: ffff888160407158 (&barn->lock){+.+.}-{3:3}, at: barn_put_empty_sheaf+0x12/0x60
 #6: ffff888160a9e370 (&p->pi_lock){-...}-{2:2}, at: _task_rq_lock+0x5b/0x470
 #7: ffff88823c63b820 (&rq->__lock){-...}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
1 lock held by khungtaskd/42:
 #0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
7 locks held by kworker/u10:6/1482:
 #0: ffff8881000ac138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90009b4fc40 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
 #2: ffff8881865808d8 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: cfg80211_wiphy_work+0xb4/0x460
 #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: ieee80211_tx_skb_tid+0x2f/0x480
 #4: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #6: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
5 locks held by kworker/u10:7/1541:
 #0: ffff8881000ac138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90009ddfc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
 #2: ffff888178da6310 (&devlink->lock_key#2){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xbd0
 #3: ffff88816bea8d20 (&nsim_trap_data->trap_lock){+.+.}-{3:3}, at: nsim_dev_trap_report_work+0x1ad/0xbd0
 #4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
2 locks held by dhcpcd/5336:
 #0: ffffffff8f3e1c80 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8f3e1a98 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
2 locks held by getty/5419:
 #0: ffff8881774af0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc90003f062e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
2 locks held by syz-executor/5602:
 #0: ffffffff8e0996d0 (dup_mmap_sem){++++}-{0:0}, at: copy_mm+0x130/0x4a0
 #1: ffff88816eee5eb0 (&mm->mmap_lock){++++}-{4:4}, at: dup_mmap+0x181/0x1d50
2 locks held by udevd/5605:
 #0: ffff88810783da48 (&sb->s_type->i_mutex_key#10){++++}-{4:4}, at: blkdev_read_iter+0x2ff/0x440
 #1: ffffffff8dc1a408 (&folio_wait_table[i]){+.+.}-{3:3}, at: finish_wait+0xbe/0x1e0
3 locks held by kworker/u8:3/5650:
 #0: ffff8881012ad938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90005bdfc40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
 #2: ffffffff8f362ac0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x800
8 locks held by kworker/0:4/5657:
 #0: ffff88801aaf2d38 ((wq_completion)wg-crypt-wg2#6){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc90005c4fc40 ((work_completion)(&peer->transmit_packet_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
 #2: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #4: ffff8881115e0248 (&peer->endpoint_lock){++..}-{3:3}, at: wg_socket_send_skb_to_peer+0x6e/0x200
 #5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_read_lock+0x277/0x4b0
 #6: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #7: ffffffff8dfc82a0 (rcu_read_lock_bh){....}-{1:3}, at: send4+0x220/0xed0
5 locks held by kworker/0:5/5671:
 #0: ffff88817685c938 ((wq_completion)wg-crypt-wg1#3){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
 #1: ffffc9000603fc40 ((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_one_work+0x8be/0x1630
 #2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
 #3: ffffffff8dc1a408 (&folio_wait_table[i]){+.+.}-{3:3}, at: folio_wake_bit+0xb0/0x1c0
 #4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
1 lock held by udevd/5836:
 #0: ffff8881053d94c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
1 lock held by syz.0.1245/8918:
 #0: ffff8881053d94c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
1 lock held by kworker/0:6/10040:
 #0: ffff888176a32938 ((wq_completion)wg-crypt-wg0#6){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
5 locks held by syz-executor/15204:
 #0: ffffffff8f3e1c80 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8f3e1a98 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
 #2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: ieee80211_register_hw+0x3c83/0x4910
 #3: ffff88818dac08d8 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_register_hw+0x3ca5/0x4910
 #4: ffff88812103a108 ((lock)){+.+.}-{3:3}, at: __radix_tree_preload+0x141/0x870
2 locks held by syz.3.4404/15750:
 #0: ffff8881a42a0480 (sb_writers#4){++++}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881851dea98 (&dquot->dq_lock){+.+.}-{4:4}, at: dqget+0x6c1/0xc60
2 locks held by syz.3.4404/15758:
 #0: ffff8881851dea98 (&dquot->dq_lock){+.+.}-{4:4}, at: dquot_acquire+0x67/0x620
 #1: ffff8881a42a01e8 (&s->s_dquot.dqio_sem){++++}-{4:4}, at: v2_read_dquot+0x50/0x1d0
2 locks held by syz.3.4404/15760:
 #0: ffff8881a42a0480 (sb_writers#4){++++}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881851dea98 (&dquot->dq_lock){+.+.}-{4:4}, at: dqget+0x6c1/0xc60

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 42 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
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+0xfd3/0x1030
 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: 1482 Comm: kworker/u10:6 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
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:__lock_acquire+0x197b/0x2d10
Code: 13 25 ff 0f 00 00 39 05 af 55 d7 11 73 06 89 05 a7 55 d7 11 48 8b 02 48 89 df 4c 39 e8 0f 84 2c fe ff ff 4c 89 60 30 48 8b 00 <4c> 39 e8 75 f4 48 89 df e9 18 fe ff ff 48 89 fb 48 c7 c7 50 55 e9
RSP: 0018:ffffc90009b4ef18 EFLAGS: 00000002
RAX: ffffffff96276498 RBX: 0000000000000101 RCX: 0000000000000004
RDX: ffffffff95fc1dc8 RSI: ffff88816c912ae0 RDI: 0000000000000101
RBP: abdfdc9597f53b54 R08: ffffc90009b4eee0 R09: 0000000000000020
R10: ffffc90009b4f130 R11: ffffffff81a0d3b0 R12: ffffffff95fc21b8
R13: ffffffff9319a138 R14: ffff88816c911d80 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8882a9f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2641056b8 CR3: 000000017949c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 lock_acquire+0x106/0x350
 _raw_spin_lock_irqsave+0x40/0x60
 debug_object_assert_init+0xa1/0x300
 hrtimer_start_range_ns+0x41/0x160
 finish_task_switch+0x3cd/0xbe0
 __schedule+0x1701/0x5500
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x40
 rt_spin_lock+0x316/0x400
 ieee80211_queue_skb+0x374/0x2310
 ieee80211_tx+0x2d0/0x4d0
 __ieee80211_tx_skb_tid_band+0x50f/0x680
 ieee80211_tx_skb_tid+0x29e/0x480
 ieee80211_ibss_work+0x850/0x10d0
 cfg80211_wiphy_work+0x2cf/0x460
 process_one_work+0x98b/0x1630
 worker_thread+0xb49/0x1140
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
