syzbot

BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 29834 Comm: syz-executor.5 Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 add_chain_cache kernel/locking/lockdep.c:3708 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3789 [inline]
 validate_chain kernel/locking/lockdep.c:3810 [inline]
 __lock_acquire+0x4322/0x5df0 kernel/locking/lockdep.c:5074
 lock_acquire kernel/locking/lockdep.c:5691 [inline]
 lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5656
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
 try_to_wake_up+0xab/0x1c40 kernel/sched/core.c:4191
 swake_up_locked kernel/sched/swait.c:29 [inline]
 swake_up_locked kernel/sched/swait.c:21 [inline]
 swake_up_one+0x75/0x1b0 kernel/sched/swait.c:52
 rcu_report_unblock_qs_rnp kernel/rcu/tree.c:1938 [inline]
 rcu_preempt_deferred_qs_irqrestore+0xa05/0xd60 kernel/rcu/tree_plugin.h:555
 rcu_read_unlock_special kernel/rcu/tree_plugin.h:679 [inline]
 __rcu_read_unlock+0x2a0/0x570 kernel/rcu/tree_plugin.h:424
 rcu_read_unlock include/linux/rcupdate.h:805 [inline]
 task_cls_classid+0x13f/0x3d0 include/net/cls_cgroup.h:35
 sock_update_classid include/net/cls_cgroup.h:44 [inline]
 sk_alloc+0x2c6/0x7f0 net/core/sock.c:2112
 inet6_create net/ipv6/af_inet6.c:192 [inline]
 inet6_create+0x375/0x1130 net/ipv6/af_inet6.c:119
 __sock_create+0x380/0x850 net/socket.c:1547
 udp_sock_create6+0xc9/0x690 net/ipv6/ip6_udp_tunnel.c:23
 udp_sock_create include/net/udp_tunnel.h:62 [inline]
 rxrpc_open_socket+0x20b/0x750 net/rxrpc/local_object.c:176
 rxrpc_lookup_local+0xc13/0x11d0 net/rxrpc/local_object.c:285
 rxrpc_bind+0x35e/0x5a0 net/rxrpc/af_rxrpc.c:150
 afs_open_socket+0x1b4/0x360 fs/afs/rxrpc.c:66
 afs_net_init+0x990/0xc90 fs/afs/main.c:126
 ops_init+0xb9/0x6b0 net/core/net_namespace.c:136
 setup_net+0x5d1/0xc50 net/core/net_namespace.c:339
 copy_net_ns+0x4ee/0x8e0 net/core/net_namespace.c:491
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:228
 ksys_unshare+0x449/0x920 kernel/fork.c:3444
 __do_sys_unshare kernel/fork.c:3515 [inline]
 __se_sys_unshare kernel/fork.c:3513 [inline]
 __x64_sys_unshare+0x31/0x40 kernel/fork.c:3513
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe523c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe5249ed168 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fe523dac120 RCX: 00007fe523c8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c060000
RBP: 00007fe523ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe523ecfb1f R14: 00007fe5249ed300 R15: 0000000000022000
 </TASK>