Warning: Permanently added '10.128.0.160' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   33.002931] audit: type=1400 audit(1601473657.753:8): avc:  denied  { execmem } for  pid=6358 comm="syz-executor816" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   33.010995] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[   33.032060] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock
[   33.041990] F2FS-fs (loop0): invalid crc value
[   33.081893] F2FS-fs (loop0): access invalid blkaddr:1
[   33.087270] ------------[ cut here ]------------
[   33.092021] WARNING: CPU: 0 PID: 6358 at fs/f2fs/checkpoint.c:150 f2fs_is_valid_blkaddr+0x2d9/0x920
[   33.101199] Kernel panic - not syncing: panic_on_warn set ...
[   33.101199] 
[   33.108543] CPU: 0 PID: 6358 Comm: syz-executor816 Not tainted 4.14.198-syzkaller #0
[   33.116417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.126020] Call Trace:
[   33.128610]  dump_stack+0x1b2/0x283
[   33.132214]  panic+0x1f9/0x42d
[   33.135386]  ? add_taint.cold+0x16/0x16
[   33.139352]  ? f2fs_is_valid_blkaddr+0x2d9/0x920
[   33.144086]  ? f2fs_is_valid_blkaddr+0x2d9/0x920
[   33.148824]  __warn.cold+0x20/0x4b
[   33.152353]  ? ist_end_non_atomic+0x10/0x10
[   33.156665]  ? f2fs_is_valid_blkaddr+0x2d9/0x920
[   33.161403]  report_bug+0x208/0x249
[   33.165012]  do_error_trap+0x195/0x2d0
[   33.168880]  ? math_error+0x2d0/0x2d0
[   33.172678]  ? log_store.cold+0x16/0x16
[   33.176643]  ? trace_hardirqs_on_caller+0x3a8/0x580
[   33.181640]  ? _raw_spin_unlock_irqrestore+0x66/0xe0
[   33.186770]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   33.191606]  invalid_op+0x1b/0x40
[   33.195041] RIP: 0010:f2fs_is_valid_blkaddr+0x2d9/0x920
[   33.200388] RSP: 0018:ffff888098777820 EFLAGS: 00010286
[   33.205742] RAX: dffffc0000000000 RBX: ffff88809bfaa3c0 RCX: 0000000000000000
[   33.213001] RDX: 0000000000000000 RSI: ffffffff86ac12c0 RDI: ffffed10130eeede
[   33.220248] RBP: 0000000000000005 R08: 0000000000000029 R09: 0000000000000000
[   33.227514] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[   33.234762] R13: 0000000000000001 R14: 0000000000001400 R15: 0000000000000400
[   33.242038]  f2fs_submit_page_bio+0x10a/0x1380
[   33.246616]  ? check_preemption_disabled+0x35/0x240
[   33.251611]  read_node_page+0x209/0x2f0
[   33.255578]  ? truncate_node+0xc80/0xc80
[   33.259631]  __get_node_page.part.0+0x97/0xea0
[   33.264200]  get_node_page+0xdd/0x170
[   33.268021]  f2fs_iget+0x1e8/0x3760
[   33.271626]  ? kmem_cache_alloc_trace+0x36c/0x3d0
[   33.276596]  f2fs_fill_super+0x30ac/0x56a0
[   33.280879]  ? snprintf+0xa5/0xd0
[   33.284317]  ? f2fs_commit_super+0x3a0/0x3a0
[   33.288723]  ? ns_test_super+0x50/0x50
[   33.292796]  ? set_blocksize+0x125/0x380
[   33.296839]  mount_bdev+0x2b3/0x360
[   33.300463]  ? f2fs_commit_super+0x3a0/0x3a0
[   33.304872]  mount_fs+0x92/0x2a0
[   33.308217]  vfs_kern_mount.part.0+0x5b/0x470
[   33.312703]  do_mount+0xe53/0x2a00
[   33.316224]  ? copy_mount_string+0x40/0x40
[   33.320437]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   33.325427]  ? copy_mnt_ns+0xa30/0xa30
[   33.329300]  ? copy_mount_options+0x1fa/0x2f0
[   33.333780]  ? copy_mnt_ns+0xa30/0xa30
[   33.337660]  SyS_mount+0xa8/0x120
[   33.341105]  ? copy_mnt_ns+0xa30/0xa30
[   33.344990]  do_syscall_64+0x1d5/0x640
[   33.348869]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   33.354041] RIP: 0033:0x44771a
[   33.357229] RSP: 002b:00007ffcf7649e08 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
[   33.364912] RAX: ffffffffffffffda RBX: 00007ffcf7649e60 RCX: 000000000044771a
[   33.372173] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcf7649e20
[   33.379418] RBP: 00007ffcf7649e20 R08: 00007ffcf7649e60 R09: 00007ffc00000015
[   33.386665] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000034
[   33.393912] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   33.402319] Kernel Offset: disabled
[   33.405970] Rebooting in 86400 seconds..