BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4596 Comm: kworker/u4:9 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
Workqueue: bond0 bond_resend_igmp_join_requests_delayed
Call trace:
 dump_backtrace+0x1c0/0x1ec 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+0xf4/0x15c 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+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 __stack_depot_save+0x1c8/0x4ac lib/stackdepot.c:479
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_set_track+0x64/0x80 mm/kasan/common.c:53
 kasan_save_free_info+0x38/0x5c mm/kasan/generic.c:516
 ____kasan_slab_free+0x148/0x1b0 mm/kasan/common.c:237
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:245
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x16c/0x1e8 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xbc/0x218 mm/slub.c:3700
 kfree+0xd0/0x1a8 mm/slab_common.c:988
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x434/0x63c net/core/skbuff.c:791
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb net/core/skbuff.c:870 [inline]
 kfree_skb_reason+0x198/0x418 net/core/skbuff.c:893
 kfree_skb include/linux/skbuff.h:1252 [inline]
 __dev_kfree_skb_any+0xdc/0xf4 net/core/dev.c:3221
 bond_start_xmit+0x368/0x1894 drivers/net/bonding/bond_main.c:-1
 __netdev_start_xmit include/linux/netdevice.h:4896 [inline]
 netdev_start_xmit include/linux/netdevice.h:4910 [inline]
 xmit_one net/core/dev.c:3683 [inline]
 dev_hard_start_xmit+0x234/0x8cc net/core/dev.c:3699
 __dev_queue_xmit+0x15b8/0x3118 net/core/dev.c:4363
 dev_queue_xmit include/linux/netdevice.h:3051 [inline]
 neigh_resolve_output+0x550/0x650 net/core/neighbour.c:1568
 neigh_output include/net/neighbour.h:545 [inline]
 ip6_finish_output2+0xd5c/0x1840 net/ipv6/ip6_output.c:138
 __ip6_finish_output net/ipv6/ip6_output.c:205 [inline]
 ip6_finish_output+0x594/0x92c net/ipv6/ip6_output.c:216
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip6_output+0x274/0x500 net/ipv6/ip6_output.c:237
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK+0x15c/0x444 include/linux/netfilter.h:302
 mld_sendpack+0x88c/0x10ec net/ipv6/mcast.c:1825
 mld_send_report+0x98/0x308 net/ipv6/mcast.c:2029
 ipv6_mc_rejoin_groups net/ipv6/mcast.c:2834 [inline]
 ipv6_mc_netdev_event+0x16c/0x4d0 net/ipv6/mcast.c:2849
 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:2014 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers+0x110/0x198 net/core/dev.c:2066
 bond_resend_igmp_join_requests_delayed+0x64/0x150 drivers/net/bonding/bond_main.c:884
 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292
 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850