device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 501 Comm: kworker/u4:3 Not tainted 5.6.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:2840 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:2914 [inline]
 validate_chain kernel/locking/lockdep.c:2935 [inline]
 __lock_acquire.cold+0x263/0x288 kernel/locking/lockdep.c:3954
 lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4484
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159
 lock_timer_base+0x55/0x1a0 kernel/time/timer.c:936
 __mod_timer kernel/time/timer.c:1008 [inline]
 mod_timer kernel/time/timer.c:1100 [inline]
 add_timer+0xef/0x830 kernel/time/timer.c:1136
 __queue_delayed_work+0x1a5/0x270 kernel/workqueue.c:1646
 queue_delayed_work_on+0x1a2/0x210 kernel/workqueue.c:1671
 queue_delayed_work include/linux/workqueue.h:522 [inline]
 schedule_delayed_work include/linux/workqueue.h:626 [inline]
 kfree_call_rcu+0x335/0x400 kernel/rcu/tree.c:2872
 __hw_addr_del_entry net/core/dev_addr_lists.c:107 [inline]
 __hw_addr_del_entry+0x2dd/0x3b0 net/core/dev_addr_lists.c:88
 __hw_addr_del_ex+0x129/0x150 net/core/dev_addr_lists.c:121
 __dev_mc_del+0x74/0xd0 net/core/dev_addr_lists.c:806
 igmp6_group_dropped+0x2f5/0x9b0 net/ipv6/mcast.c:708
 __ipv6_dev_mc_dec+0x1ed/0x300 net/ipv6/mcast.c:958
 addrconf_leave_solict.part.0+0xb5/0xf0 net/ipv6/addrconf.c:2163
 addrconf_leave_solict net/ipv6/addrconf.c:6022 [inline]
 __ipv6_ifa_notify+0x2a7/0xb50 net/ipv6/addrconf.c:6022
 addrconf_ifdown+0x8d2/0x12f0 net/ipv6/addrconf.c:3828
 addrconf_notify+0x5cd/0x2310 net/ipv6/addrconf.c:3639
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:1948 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933
 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline]
 call_netdevice_notifiers net/core/dev.c:1974 [inline]
 dev_close_many+0x2f5/0x620 net/core/dev.c:1549
 rollback_registered_many+0x3ad/0xe70 net/core/dev.c:8787
 unregister_netdevice_many.part.0+0x16/0x1e0 net/core/dev.c:9966
 unregister_netdevice_many net/core/dev.c:9965 [inline]
 default_device_exit_batch+0x311/0x3d0 net/core/dev.c:10442
 ops_exit_list.isra.0+0x103/0x150 net/core/net_namespace.c:175
 cleanup_net+0x511/0xa50 net/core/net_namespace.c:589
 process_one_work+0x94b/0x1690 kernel/workqueue.c:2266
 worker_thread+0x96/0xe20 kernel/workqueue.c:2412
 kthread+0x357/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
device hsr_slave_0 left promiscuous mode
device hsr_slave_1 left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves
device hsr_slave_1 left promiscuous mode
device team_slave_1 left promiscuous mode
@þ (unregistering): Port device team_slave_1 removed
device team_slave_0 left promiscuous mode
@þ (unregistering): Port device team_slave_0 removed
bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
device bond_slave_1 left promiscuous mode
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
device bond_slave_0 left promiscuous mode
bond0 (unregistering): Released all slaves