BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 9939 Comm: syz.5.609 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 reacquire_held_locks+0x13c/0x1f8 kernel/locking/lockdep.c:5385 __lock_release kernel/locking/lockdep.c:5574 [inline] lock_release+0x18c/0x39c kernel/locking/lockdep.c:5889 sock_release_ownership include/net/sock.h:1815 [inline] release_sock+0x100/0x1ac net/core/sock.c:3801 __inet_bind+0x388/0x9d8 net/ipv4/af_inet.c:565 inet_bind_sk+0x114/0x1d8 net/ipv4/af_inet.c:464 inet_bind+0x54/0x68 net/ipv4/af_inet.c:469 kernel_bind+0x104/0x168 net/socket.c:3554 udp_sock_create4+0x190/0x3f0 net/ipv4/udp_tunnel_core.c:32 udp_sock_create include/net/udp_tunnel.h:59 [inline] rxrpc_open_socket net/rxrpc/local_object.c:187 [inline] rxrpc_lookup_local+0x958/0xfc0 net/rxrpc/local_object.c:293 rxrpc_bind+0x148/0x378 net/rxrpc/af_rxrpc.c:150 __sys_bind_socket net/socket.c:1874 [inline] __sys_bind+0x264/0x360 net/socket.c:1905 __do_sys_bind net/socket.c:1910 [inline] __se_sys_bind net/socket.c:1908 [inline] __arm64_sys_bind+0x7c/0x94 net/socket.c:1908 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596