INFO: task kworker/0:3:23581 blocked for more than 143 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/0:3     D27112 23581      2 0x80004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:74
 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
INFO: task kworker/1:0:30773 blocked for more than 143 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:0     D27112 30773      2 0x80004000
Workqueue: events linkwatch_event
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 linkwatch_event+0xf/0x70 net/core/link_watch.c:242
 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
INFO: task syz-executor.2:9100 blocked for more than 143 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D29344  9100   9205 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 sock_do_ioctl+0x24e/0x2f0 net/socket.c:1051
 sock_ioctl+0x3ed/0x780 net/socket.c:1189
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a29
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <90> 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00007fd1d6111c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a29
RDX: 0000000000400200 RSI: 0000000000008912 RDI: 000000000000000b
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1d61126d4
R13: 00000000004c33e9 R14: 00000000004d6d20 R15: 00000000ffffffff
INFO: task syz-executor.1:9102 blocked for more than 143 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1  D25976  9102  10831 0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 wiphy_register+0x1c3e/0x2720 net/wireless/core.c:887
 ieee80211_register_hw+0x157e/0x3ac0 net/mac80211/main.c:1136
 mac80211_hwsim_new_radio+0x20d9/0x4360 drivers/net/wireless/mac80211_hwsim.c:3031
 hwsim_new_radio_nl+0x9e3/0x1070 drivers/net/wireless/mac80211_hwsim.c:3586
 genl_family_rcv_msg+0x74b/0xf90 net/netlink/genetlink.c:629
 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:654
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 genl_rcv+0x29/0x40 net/netlink/genetlink.c:665
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 ___sys_sendmsg+0x803/0x920 net/socket.c:2311
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2356
 __do_sys_sendmsg net/socket.c:2365 [inline]
 __se_sys_sendmsg net/socket.c:2363 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2363
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a29
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <90> 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00007f585ce11c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a29
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f585ce126d4
R13: 00000000004c7940 R14: 00000000004dd350 R15: 00000000ffffffff
INFO: task syz-executor.4:9112 blocked for more than 144 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4  D28160  9112      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock net/core/rtnetlink.c:72 [inline]
 rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 __sys_sendto+0x262/0x380 net/socket.c:1952
 __do_sys_sendto net/socket.c:1964 [inline]
 __se_sys_sendto net/socket.c:1960 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413873
Code: 8d 69 fe b9 02 00 00 00 48 89 f7 4c 89 ee e9 4c fe ff ff 48 89 f3 e9 84 fd ff ff 48 85 f6 0f 84 e5 01 00 00 49 89 c7 4c 89 e8 <49> 89 d5 31 d2 48 f7 f6 4c 89 ea 4c 8d 68 ff 49 0f af f5 48 03 73
RSP: 002b:00007ffccc921728 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000413873
RDX: 0000000000000028 RSI: 0000000000a70070 RDI: 0000000000000003
RBP: 00007ffccc921790 R08: 00007ffccc921730 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffccc921a98 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor.5:9114 blocked for more than 145 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5  D28136  9114      1 0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock net/core/rtnetlink.c:72 [inline]
 rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 __sys_sendto+0x262/0x380 net/socket.c:1952
 __do_sys_sendto net/socket.c:1964 [inline]
 __se_sys_sendto net/socket.c:1960 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413873
Code: 8d 69 fe b9 02 00 00 00 48 89 f7 4c 89 ee e9 4c fe ff ff 48 89 f3 e9 84 fd ff ff 48 85 f6 0f 84 e5 01 00 00 49 89 c7 4c 89 e8 <49> 89 d5 31 d2 48 f7 f6 4c 89 ea 4c 8d 68 ff 49 0f af f5 48 03 73
RSP: 002b:00007ffded3269e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000413873
RDX: 0000000000000028 RSI: 0000000000a70070 RDI: 0000000000000003
RBP: 00007ffded326a50 R08: 00007ffded3269f0 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffded326d58 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor.0:9116 blocked for more than 145 seconds.
      Not tainted 5.3.0+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D28160  9116      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:3384 [inline]
 __schedule+0x94f/0x1e70 kernel/sched/core.c:4069
 schedule+0xd9/0x260 kernel/sched/core.c:4136
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195
 __mutex_lock_common kernel/locking/mutex.c:1033 [inline]
 __mutex_lock+0x7b0/0x13c0 kernel/locking/mutex.c:1103
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
 rtnl_lock net/core/rtnetlink.c:72 [inline]
 rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 __sys_sendto+0x262/0x380 net/socket.c:1952
 __do_sys_sendto net/socket.c:1964 [inline]
 __se_sys_sendto net/socket.c:1960 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413873
Code: ff ff ff 0f 1f 40 00 b8 18 fc ff ff e9 56 ff ff ff bf 97 30 44 00 b9 0d 00 00 00 48 89 ee f3 a6 75 0c 48 c7 03 80 39 41 00 e9 <37> ff ff ff bf a4 30 44 00 b9 11 00 00 00 48 89 ee f3 a6 75 0c 48
RSP: 002b:00007ffc13ca30a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000413873
RDX: 0000000000000028 RSI: 0000000000a70070 RDI: 0000000000000003
RBP: 00007ffc13ca3110 R08: 00007ffc13ca30b0 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffc13ca3418 R14: 0000000000000000 R15: 0000000000000000

Showing all locks held in the system:
3 locks held by kworker/1:1/22:
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
 #0: ffff8882160cb3e8 ((wq_completion)ipv6_addrconf){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
 #1: ffff8880a9a57dc0 ((addr_chk_work).work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
 #2: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
5 locks held by kworker/u4:4/651:
1 lock held by khungtaskd/1065:
 #0: ffffffff88faad00 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5337
1 lock held by rsyslogd/9038:
2 locks held by getty/9160:
 #0: ffff88809406a690 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f812e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9161:
 #0: ffff88809a5626d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f8d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9162:
 #0: ffff8880838e3190 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f912e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9163:
 #0: ffff88809a562f50 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f892e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9164:
 #0: ffff8880a53f0bd0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f952e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9165:
 #0: ffff88809a5637d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f852e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9166:
 #0: ffff888094c716d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f652e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
3 locks held by kworker/0:3/23581:
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
 #1: ffff888046877dc0 (deferred_process_work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
 #2: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
3 locks held by kworker/1:0/30773:
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: __write_once_size include/linux/compiler.h:226 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
 #0: ffff8880aa4278e8 ((wq_completion)events){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
 #1: ffff88820528fdc0 ((linkwatch_work).work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
 #2: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.2/9100:
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
3 locks held by syz-executor.1/9102:
 #0: ffffffff899e89e8 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:664
 #1: ffffffff899e8aa0 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff899e8aa0 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:652
 #2: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.4/9112:
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220
1 lock held by syz-executor.5/9114:
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220
1 lock held by syz-executor.0/9116:
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff89997c20 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x40a/0xb00 net/core/rtnetlink.c:5220

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

NMI backtrace for cpu 1
CPU: 1 PID: 1065 Comm: khungtaskd Not tainted 5.3.0+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60