bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 10917 Comm: syz.7.1276 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 krc_this_cpu_lock kernel/rcu/tree.c:2995 [inline]
 add_ptr_to_bulk_krc_lock kernel/rcu/tree.c:3315 [inline]
 kvfree_call_rcu+0x118/0x6f0 kernel/rcu/tree.c:3406
 __hw_addr_del_entry net/core/dev_addr_lists.c:161 [inline]
 __hw_addr_del_ex+0x344/0x428 net/core/dev_addr_lists.c:200
 __dev_mc_del net/core/dev_addr_lists.c:908 [inline]
 dev_mc_del+0x88/0xfc net/core/dev_addr_lists.c:926
 igmp6_group_dropped+0x17c/0xa58 net/ipv6/mcast.c:715
 __ipv6_dev_mc_dec+0x298/0x324 net/ipv6/mcast.c:977
 addrconf_leave_solict net/ipv6/addrconf.c:2209 [inline]
 __ipv6_ifa_notify+0x5e8/0xbe4 net/ipv6/addrconf.c:6230
 addrconf_ifdown+0xc28/0x15dc net/ipv6/addrconf.c:3922
 addrconf_notify+0x2f4/0xca8 net/ipv6/addrconf.c:-1
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:2001 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 __dev_notify_flags+0x250/0x46c net/core/dev.c:-1
 dev_change_flags+0xc8/0x154 net/core/dev.c:8714
 do_setlink+0xa24/0x32c4 net/core/rtnetlink.c:2833
 rtnl_group_changelink net/core/rtnetlink.c:3361 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3618 [inline]
 rtnl_newlink+0xce0/0x1a1c net/core/rtnetlink.c:3655
 rtnetlink_rcv_msg+0x734/0xce4 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x824 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6e8/0x9b0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5b8/0x918 net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x25c/0x320 net/socket.c:2602
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg net/socket.c:2609 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
netdevsim netdevsim7 netdevsim0: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 netdevsim1: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 netdevsim2: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 netdevsim3: unset [1, 0] type 2 family 0 port 6081 - 0