BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 8761 Comm: syz.4.268 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 add_chain_cache kernel/locking/lockdep.c:-1 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868 _raw_spin_lock_nested+0x50/0x6c kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested kernel/sched/core.c:636 [inline] raw_spin_rq_lock kernel/sched/sched.h:1519 [inline] rq_lock kernel/sched/sched.h:1841 [inline] ttwu_queue kernel/sched/core.c:4002 [inline] try_to_wake_up+0x440/0xe24 kernel/sched/core.c:4328 wake_up_process+0x18/0x24 kernel/sched/core.c:4459 kick_pool+0x3e0/0x58c kernel/workqueue.c:1283 __queue_work+0xdbc/0x1210 kernel/workqueue.c:2340 queue_work_on+0xdc/0x18c kernel/workqueue.c:2390 queue_work include/linux/workqueue.h:669 [inline] schedule_work include/linux/workqueue.h:730 [inline] __rhashtable_remove_fast_one include/linux/rhashtable.h:1069 [inline] __rhashtable_remove_fast include/linux/rhashtable.h:1093 [inline] rhashtable_remove_fast include/linux/rhashtable.h:1122 [inline] inet_frag_kill+0xc78/0xdd4 net/ipv4/inet_fragment.c:244 ip_frag_reasm+0x88/0x734 net/ipv4/ip_fragment.c:414 ip_frag_queue net/ipv4/ip_fragment.c:371 [inline] ip_defrag+0x1188/0x19e8 net/ipv4/ip_fragment.c:493 ip_check_defrag+0x2bc/0x440 net/ipv4/ip_fragment.c:541 packet_rcv_fanout+0x12c/0x6b8 net/packet/af_packet.c:1523 deliver_skb net/core/dev.c:2472 [inline] dev_queue_xmit_nit+0x390/0xadc net/core/dev.c:2548 xmit_one net/core/dev.c:3823 [inline] dev_hard_start_xmit+0x16c/0x890 net/core/dev.c:3843 __dev_queue_xmit+0x1600/0x32a8 net/core/dev.c:4713 dev_queue_xmit include/linux/netdevice.h:3358 [inline] packet_xmit+0x6c/0x314 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3130 [inline] packet_sendmsg+0x3084/0x4040 net/packet/af_packet.c:3162 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg net/socket.c:729 [inline] __sys_sendto+0x36c/0x4f4 net/socket.c:2228 __do_sys_sendto net/socket.c:2235 [inline] __se_sys_sendto net/socket.c:2231 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2231 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 IPv4: Oversized IP packet from 127.202.26.0