BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 PID: 16461 Comm: syz-executor.2 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 register_lock_class.cold+0x11/0x19 kernel/locking/lockdep.c:1238
 __lock_acquire+0xff/0x48a0 kernel/locking/lockdep.c:4259
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4959
 down_write+0x8d/0x150 kernel/locking/rwsem.c:1531
 do_reconfigure_mnt fs/namespace.c:2569 [inline]
 do_mount+0xa34/0x1b40 fs/namespace.c:3188
 __do_sys_mount fs/namespace.c:3409 [inline]
 __se_sys_mount fs/namespace.c:3386 [inline]
 __x64_sys_mount+0x18f/0x230 fs/namespace.c:3386
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca69
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fdb6b8b1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000004f6c00 RCX: 000000000045ca69
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000000
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000081025 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000768 R14: 00000000004ca5de R15: 00007fdb6b8b26d4