BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 29886 Comm: syz-executor.3 Not tainted 5.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 add_chain_cache kernel/locking/lockdep.c:3523 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3622 [inline]
 validate_chain kernel/locking/lockdep.c:3643 [inline]
 __lock_acquire.cold+0x37b/0x3b4 kernel/locking/lockdep.c:4901
 lock_acquire kernel/locking/lockdep.c:5511 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 krc_this_cpu_lock kernel/rcu/tree.c:3224 [inline]
 kvfree_call_rcu+0x88/0x7d0 kernel/rcu/tree.c:3564
 sock_hash_free_elem net/core/sock_map.c:904 [inline]
 sock_hash_delete_from_link net/core/sock_map.c:927 [inline]
 sock_map_unlink net/core/sock_map.c:1488 [inline]
 sock_map_remove_links+0x3b0/0x530 net/core/sock_map.c:1500
 sock_map_close+0x12f/0x390 net/core/sock_map.c:1540
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431
 __sock_release+0xcd/0x280 net/socket.c:599
 sock_close+0x18/0x20 net/socket.c:1258
 __fput+0x288/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x41940b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe58c34030 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000041940b
RDX: 0000000065f31a34 RSI: 0000000008e47027 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b33428e90
R10: 00000000000aec28 R11: 0000000000000293 R12: 000000000056c9e0
R13: 000000000056c9e0 R14: 000000000056bf60 R15: 00000000003743b9