INFO: task kworker/0:0:5 blocked for more than 143 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0     state:D stack:26272 pid:    5 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/1:1:25 blocked for more than 143 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D stack:26672 pid:   25 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/0:7:3679 blocked for more than 143 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7     state:D stack:25672 pid: 3679 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/0:8:3680 blocked for more than 143 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:8     state:D stack:26552 pid: 3680 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/1:15:9291 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:15    state:D stack:25640 pid: 9291 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/0:10:23675 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:10    state:D stack:26072 pid:23675 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/0:1:21835 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1     state:D stack:25904 pid:21835 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/1:2:30154 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2     state:D stack:26904 pid:30154 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task kworker/0:5:4656 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:25976 pid: 4656 ppid:     2 flags:0x00004000
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
INFO: task syz-executor.5:4784 blocked for more than 144 seconds.
      Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:27232 pid: 4784 ppid:  4763 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4e90 kernel/sched/core.c:6296
 schedule+0xd2/0x260 kernel/sched/core.c:6369
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6428
 __mutex_lock_common kernel/locking/mutex.c:673 [inline]
 __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
 ovs_lock net/openvswitch/datapath.c:106 [inline]
 ovs_dp_cmd_set+0x50/0x2c0 net/openvswitch/datapath.c:1912
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8bc1ad2059
RSP: 002b:00007f8bc0447168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8bc1be4f60 RCX: 00007f8bc1ad2059
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f8bc1b2c08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff047270df R14: 00007f8bc0447300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/5:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90000ca7db8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
3 locks held by kworker/1:1/25:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90000dffdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
1 lock held by khungtaskd/27:
 #0: ffffffff8bb85160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
2 locks held by getty/3280:
 #0: ffff888023853098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
3 locks held by kworker/0:7/3679:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90002bcfdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
3 locks held by kworker/0:8/3680:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90002bdfdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
2 locks held by kworker/1:12/8983:
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90002effdb8 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
3 locks held by kworker/1:15/9291:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90002f6fdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
3 locks held by kworker/0:10/23675:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc90004eafdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
6 locks held by kworker/u4:12/17026:
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc9000e76fdb8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d323510 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb00 net/core/net_namespace.c:560
 #3: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #3: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_exit_net+0x192/0xbc0 net/openvswitch/datapath.c:2606
 #4: ffffffff8d338028 (rtnl_mutex){+.+.}-{3:3}, at: internal_dev_destroy+0x6f/0x150 net/openvswitch/vport-internal_dev.c:183
 #5: ffffffff8bb8ed68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #5: ffffffff8bb8ed68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:840
3 locks held by kworker/0:1/21835:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc9000bf37db8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
3 locks held by kworker/1:2/30154:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc900030bfdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
3 locks held by kworker/0:5/4656:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278
 #1: ffffc9000328fdb8 ((work_completion)(&(&ovs_net->masks_rebalance)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #2: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_masks_rebalance+0x20/0xf0 net/openvswitch/datapath.c:2458
2 locks held by syz-executor.5/4784:
 #0: ffffffff8d3cb8b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_cmd_set+0x50/0x2c0 net/openvswitch/datapath.c:1912
2 locks held by syz-executor.5/4786:
 #0: ffffffff8d3cb8b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_cmd_set+0x50/0x2c0 net/openvswitch/datapath.c:1912
2 locks held by syz-executor.4/4808:
 #0: ffffffff8d3cb8b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_lock net/openvswitch/datapath.c:106 [inline]
 #1: ffffffff8d79cd28 (ovs_mutex){+.+.}-{3:3}, at: ovs_dp_cmd_new+0x51b/0xeb0 net/openvswitch/datapath.c:1783

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:295
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18148 Comm: kworker/u4:9 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy63 ieee80211_iface_work
RIP: 0010:check_kcov_mode+0x31/0x40 kernel/kcov.c:178
Code: 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 a4 15 00 00 85 d2 74 0b 8b 86 80 15 00 00 39 f8 0f 94 c0 <c3> 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0 65 8b 15 f7 20
RSP: 0018:ffffc90011167610 EFLAGS: 00000293
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88823bdfd000
RDX: 0000000000000000 RSI: ffff888010e45700 RDI: 0000000000000003
RBP: ffff88823bdfd000 R08: ffff88823bdfc922 R09: 0000000000000001
R10: ffffffff81c0081e R11: 0000000000000000 R12: ffff88823bdfc000
R13: 00000000ffffffab R14: ffffffff9058eb28 R15: ffff88823bdfc922
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00b44e8c0 CR3: 000000000b88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 write_comp_data kernel/kcov.c:221 [inline]
 __sanitizer_cov_trace_cmp8+0x1d/0x70 kernel/kcov.c:267
 for_each_canary mm/kfence/core.c:351 [inline]
 kfence_guarded_alloc mm/kfence/core.c:437 [inline]
 __kfence_alloc+0xf2e/0x1490 mm/kfence/core.c:910
 kfence_alloc include/linux/kfence.h:126 [inline]
 slab_alloc_node mm/slub.c:3148 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 kmem_cache_alloc_trace+0x2a5/0x2c0 mm/slub.c:3255
 kmalloc include/linux/slab.h:581 [inline]
 kzalloc include/linux/slab.h:715 [inline]
 ieee802_11_parse_elems_crc+0xd5/0x1050 net/mac80211/util.c:1489
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2228 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
 ieee80211_ibss_rx_queued_mgmt+0xd0e/0x3150 net/mac80211/ibss.c:1639
 ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
 ieee80211_iface_work+0xa69/0xd00 net/mac80211/iface.c:1581
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 c2                	mov    %eax,%edx
   2:	81 e2 00 01 00 00    	and    $0x100,%edx
   8:	a9 00 01 ff 00       	test   $0xff0100,%eax
   d:	74 10                	je     0x1f
   f:	31 c0                	xor    %eax,%eax
  11:	85 d2                	test   %edx,%edx
  13:	74 15                	je     0x2a
  15:	8b 96 a4 15 00 00    	mov    0x15a4(%rsi),%edx
  1b:	85 d2                	test   %edx,%edx
  1d:	74 0b                	je     0x2a
  1f:	8b 86 80 15 00 00    	mov    0x1580(%rsi),%eax
  25:	39 f8                	cmp    %edi,%eax
  27:	0f 94 c0             	sete   %al
* 2a:	c3                   	retq <-- trapping instruction
  2b:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  32:	00 00 00 00
  36:	0f 1f 00             	nopl   (%rax)
  39:	31 c0                	xor    %eax,%eax
  3b:	65                   	gs
  3c:	8b                   	.byte 0x8b
  3d:	15                   	.byte 0x15
  3e:	f7 20                	mull   (%rax)