BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 6413 Comm: syz-executor Not tainted 6.1.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 local_lock_acquire+0x3c/0x98 include/linux/local_lock_internal.h:29
 ___slab_alloc+0x1c8/0xee0 mm/slub.c:3099
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x2c8/0x388 mm/slub.c:3437
 kmalloc_trace+0x48/0x94 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 nsim_fib_event_schedule_work drivers/net/netdevsim/fib.c:990 [inline]
 nsim_fib_event_nb+0x114/0xe28 drivers/net/netdevsim/fib.c:1043
 notifier_call_chain kernel/notifier.c:87 [inline]
 atomic_notifier_call_chain+0x174/0x2a0 kernel/notifier.c:225
 call_fib_notifiers+0x44/0x78 net/core/fib_notifier.c:35
 call_fib6_notifiers+0x60/0x80 net/ipv6/fib6_notifier.c:22
 fib6_del+0xd48/0x1220 net/ipv6/ip6_fib.c:2032
 fib6_clean_node+0x24c/0x4d0 net/ipv6/ip6_fib.c:2194
 fib6_walk_continue+0x5b8/0x7e0 net/ipv6/ip6_fib.c:2116
 fib6_walk+0x144/0x258 net/ipv6/ip6_fib.c:2164
 fib6_clean_tree net/ipv6/ip6_fib.c:2244 [inline]
 __fib6_clean_all+0x29c/0x418 net/ipv6/ip6_fib.c:2260
 fib6_clean_all+0x3c/0x50 net/ipv6/ip6_fib.c:2271
 rt6_sync_down_dev net/ipv6/route.c:4902 [inline]
 rt6_disable_ip+0x134/0x81c net/ipv6/route.c:4907
 addrconf_ifdown+0x150/0x17a8 net/ipv6/addrconf.c:3801
 addrconf_notify+0x324/0xc94
 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:1970 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2008 [inline]
 call_netdevice_notifiers net/core/dev.c:2022 [inline]
 dev_close_many+0x2fc/0x468 net/core/dev.c:1570
 unregister_netdevice_many+0x3fc/0x175c net/core/dev.c:10921
 unregister_netdevice_queue+0x2d0/0x31c net/core/dev.c:10878
 unregister_netdevice include/linux/netdevice.h:3067 [inline]
 nsim_destroy+0x58/0x164 drivers/net/netdevsim/netdev.c:382
 __nsim_dev_port_del+0x148/0x1a8 drivers/net/netdevsim/dev.c:1433
 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1445 [inline]
 nsim_dev_reload_destroy+0x240/0x43c drivers/net/netdevsim/dev.c:1662
 nsim_drv_remove+0x64/0x154 drivers/net/netdevsim/dev.c:1678
 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:246
 device_remove drivers/base/dd.c:548 [inline]
 __device_release_driver drivers/base/dd.c:1260 [inline]
 device_release_driver_internal+0x42c/0x724 drivers/base/dd.c:1286
 device_release_driver+0x28/0x38 drivers/base/dd.c:1309
 bus_remove_device+0x298/0x38c drivers/base/bus.c:531
 device_del+0x57c/0x9bc drivers/base/core.c:3884
 device_unregister+0x2c/0xcc drivers/base/core.c:3927
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline]
 del_device_store+0x2c4/0x39c drivers/net/netdevsim/bus.c:219
 bus_attr_store+0x80/0xa4 drivers/base/bus.c:124
 sysfs_kf_write+0x200/0x280 fs/sysfs/file.c:136
 kernfs_fop_write_iter+0x334/0x48c fs/kernfs/file.c:334
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x610/0x91c fs/read_write.c:584
 ksys_write+0x15c/0x26c fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __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+0x58/0x168 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