Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   72.014446][ T8434] loop0: detected capacity change from 0 to 31
[   72.028146][ T8434] BUG: spinlock bad magic on CPU#1, syz-executor062/8434
[   72.035265][ T8434]  lock: 0xffff8880b9c31d60, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[   72.044423][ T8434] CPU: 1 PID: 8434 Comm: syz-executor062 Not tainted 5.12.0-rc6-next-20210406-syzkaller #0
[   72.054435][ T8434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.064501][ T8434] Call Trace:
[   72.067793][ T8434]  dump_stack+0x141/0x1d7
[   72.072182][ T8434]  do_raw_spin_lock+0x216/0x2b0
[   72.077028][ T8434]  ? rwlock_bug.part.0+0x90/0x90
[   72.081953][ T8434]  ? alloc_pages+0x194/0x2a0
[   72.086530][ T8434]  ? rcu_read_lock_sched_held+0x3a/0x70
[   72.092086][ T8434]  erofs_pcpubuf_growsize+0x36f/0x620
[   72.097477][ T8434]  ? erofs_put_pcpubuf+0xa0/0xa0
[   72.102404][ T8434]  ? kfree+0xe5/0x7f0
[   72.106387][ T8434]  ? trace_kmalloc+0xbe/0xf0
[   72.111147][ T8434]  ? __kmalloc_track_caller+0x1be/0x310
[   72.116694][ T8434]  z_erofs_load_lz4_config+0x1ef/0x3e0
[   72.122161][ T8434]  erofs_fc_fill_super+0xe84/0x1d10
[   72.127397][ T8434]  ? __sanitizer_cov_trace_cmp4+0x1c/0x70
[   72.133106][ T8434]  ? set_blocksize+0x1c1/0x3b0
[   72.137876][ T8434]  get_tree_bdev+0x440/0x760
[   72.142458][ T8434]  ? trace_event_raw_event_erofs_readpage+0x5a0/0x5a0
[   72.149248][ T8434]  vfs_get_tree+0x89/0x2f0
[   72.153659][ T8434]  path_mount+0x132a/0x1fa0
[   72.158158][ T8434]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   72.164443][ T8434]  ? strncpy_from_user+0x2a0/0x3e0
[   72.169542][ T8434]  ? finish_automount+0xad0/0xad0
[   72.174553][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   72.180777][ T8434]  ? getname_flags.part.0+0x1dd/0x4f0
[   72.186132][ T8434]  __x64_sys_mount+0x27f/0x300
[   72.190880][ T8434]  ? copy_mnt_ns+0xae0/0xae0
[   72.195449][ T8434]  ? syscall_enter_from_user_mode+0x27/0x70
[   72.201327][ T8434]  do_syscall_64+0x2d/0x70
[   72.205737][ T8434]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   72.211622][ T8434] RIP: 0033:0x444f7a
[   72.215505][ T8434] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   72.235102][ T8434] RSP: 002b:00007ffe1fa3c2a8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
[   72.243521][ T8434] RAX: ffffffffffffffda RBX: 00007ffe1fa3c300 RCX: 0000000000444f7a
[   72.251485][ T8434] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe1fa3c2c0
[   72.259461][ T8434] RBP: 00007ffe1fa3c2c0 R08: 00007ffe1fa3c300 R09: