Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.235197] audit: type=1400 audit(1601534726.524:8): avc:  denied  { execmem } for  pid=6361 comm="syz-executor065" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   32.242085] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[   32.262895] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock
[   32.271130] F2FS-fs (loop0): invalid crc value
[   32.306141] ------------[ cut here ]------------
[   32.310976] kernel BUG at fs/f2fs/node.c:1031!
[   32.315675] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   32.321024] Modules linked in:
[   32.324208] CPU: 1 PID: 6361 Comm: syz-executor065 Not tainted 4.14.198-syzkaller #0
[   32.332077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.341413] task: ffff8880974da680 task.stack: ffff8880978e0000
[   32.347465] RIP: 0010:remove_inode_page+0x578/0x610
[   32.352480] RSP: 0018:ffff8880978e7918 EFLAGS: 00010297
[   32.357820] RAX: ffff8880974da680 RBX: 1ffff11012f1cf23 RCX: 0000000000000000
[   32.365067] RDX: 0000000000000000 RSI: ffffea00022d1540 RDI: ffff8880826c58c0
[   32.372326] RBP: ffff8880826c57f0 R08: 0000000000000000 R09: 0000000000000003
[   32.379591] R10: 0000000000000000 R11: ffff8880974da680 R12: 0000000000000000
[   32.386837] R13: ffff8880978e7948 R14: 0000000000006000 R15: dffffc0000000000
[   32.394171] FS:  0000000001ba4880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
[   32.402374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.408234] CR2: 000000000043f010 CR3: 000000008911c000 CR4: 00000000001406e0
[   32.415489] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.422731] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.430069] Call Trace:
[   32.432638]  ? get_dnode_of_data+0x1ca0/0x1ca0
[   32.437203]  ? lock_acquire+0x170/0x3f0
[   32.441256]  f2fs_evict_inode+0xc2e/0x1070
[   32.445521]  ? f2fs_write_inode+0x1d0/0x1d0
[   32.449865]  evict+0x2c8/0x700
[   32.453065]  iput+0x458/0x7e0
[   32.456150]  ? f2fs_show_options+0xdf0/0xdf0
[   32.460554]  f2fs_fill_super+0x4084/0x56a0
[   32.464777]  ? snprintf+0xa5/0xd0
[   32.468224]  ? f2fs_commit_super+0x3a0/0x3a0
[   32.472628]  ? ns_test_super+0x50/0x50
[   32.476500]  ? set_blocksize+0x125/0x380
[   32.480559]  mount_bdev+0x2b3/0x360
[   32.484171]  ? f2fs_commit_super+0x3a0/0x3a0
[   32.488580]  mount_fs+0x92/0x2a0
[   32.491933]  vfs_kern_mount.part.0+0x5b/0x470
[   32.496429]  do_mount+0xe53/0x2a00
[   32.499981]  ? copy_mount_string+0x40/0x40
[   32.504346]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   32.509352]  ? copy_mnt_ns+0xa30/0xa30
[   32.513239]  ? copy_mount_options+0x1fa/0x2f0
[   32.517717]  ? copy_mnt_ns+0xa30/0xa30
[   32.521586]  SyS_mount+0xa8/0x120
[   32.525020]  ? copy_mnt_ns+0xa30/0xa30
[   32.528890]  do_syscall_64+0x1d5/0x640
[   32.532766]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   32.537949] RIP: 0033:0x4471fa
[   32.541118] RSP: 002b:00007ffc92946db8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
[   32.548811] RAX: ffffffffffffffda RBX: 00007ffc92946e10 RCX: 00000000004471fa
[   32.556060] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc92946dd0
[   32.563309] RBP: 00007ffc92946dd0 R08: 00007ffc92946e10 R09: 00007ffc00000015
[   32.570571] R10: 0000000000000000 R11: 0000000000000297 R12: 000000000000000f
[   32.577823] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   32.585088] Code: 0f 0b e8 dc bc a4 fe 49 8d 6d ff e9 0f fd ff ff e8 ce bc a4 fe 48 c7 c6 60 f6 db 86 48 89 ef e8 5f 0b c3 fe 0f 0b e8 b8 bc a4 fe <0f> 0b e8 f1 8f ce fe e9 f2 fa ff ff e8 e7 8f ce fe e9 d0 fc ff 
[   32.604164] RIP: remove_inode_page+0x578/0x610 RSP: ffff8880978e7918
[   32.611137] ---[ end trace ba39d18b5e1a08aa ]---
[   32.615913] Kernel panic - not syncing: Fatal exception
[   32.622396] Kernel Offset: disabled
[   32.626005] Rebooting in 86400 seconds..