Warning: Permanently added '10.128.0.55' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   28.075689] kasan: CONFIG_KASAN_INLINE enabled
[   28.080426] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   28.088081] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   28.094300] Modules linked in:
[   28.097476] CPU: 1 PID: 7962 Comm: syz-executor994 Not tainted 4.14.245-syzkaller #0
[   28.105332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.114678] task: ffff888097086400 task.stack: ffff888096248000
[   28.120859] RIP: 0010:rb_erase+0x29/0x1290
[   28.125156] RSP: 0018:ffff88809624fa68 EFLAGS: 00010292
[   28.130606] RAX: dffffc0000000000 RBX: ffff888094f23970 RCX: 1ffff11012c49f27
[   28.138000] RDX: 0000000000000001 RSI: ffffffff8bf9cea0 RDI: 0000000000000008
[   28.145379] RBP: 0000000000000000 R08: ffffffff8ba3056c R09: 0000000000001c0c
[   28.152627] R10: 0000000000000001 R11: ffff888097086400 R12: 0000000000000000
[   28.159969] R13: dffffc0000000000 R14: ffff888094f1b838 R15: ffffffff8bf9cea0
[   28.167305] FS:  0000000001924300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   28.175582] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.181460] CR2: 00000000200000c0 CR3: 000000009456d000 CR4: 00000000001406e0
[   28.188712] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.196049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.203357] Call Trace:
[   28.205933]  integrity_inode_free+0x119/0x300
[   28.210512]  security_inode_free+0x14/0x80
[   28.214813]  __destroy_inode+0x1e8/0x4d0
[   28.218856]  destroy_inode+0x49/0x110
[   28.222634]  iput+0x458/0x7e0
[   28.225757]  ? ext4_mark_dquot_dirty+0x190/0x190
[   28.230494]  ext4_ioctl+0x16c5/0x3870
[   28.234534]  ? ext4_ioctl_check_immutable+0x1c0/0x1c0
[   28.239722]  ? putname+0xcd/0x110
[   28.243154]  ? do_sys_open+0x203/0x410
[   28.247128]  ? do_syscall_64+0x1d5/0x640
[   28.251253]  ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   28.256617]  ? path_lookupat+0x780/0x780
[   28.260680]  ? debug_check_no_obj_freed+0x2c0/0x680
[   28.265713]  ? lock_acquire+0x170/0x3f0
[   28.269688]  ? lock_downgrade+0x740/0x740
[   28.274004]  ? _raw_spin_unlock_irqrestore+0x66/0xe0
[   28.279120]  ? debug_check_no_obj_freed+0x2c0/0x680
[   28.284281]  ? ext4_ioctl_check_immutable+0x1c0/0x1c0
[   28.289492]  do_vfs_ioctl+0x75a/0xff0
[   28.293437]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   28.298989]  ? ioctl_preallocate+0x1a0/0x1a0
[   28.303377]  ? kmem_cache_free+0x23a/0x2b0
[   28.307592]  ? putname+0xcd/0x110
[   28.311112]  ? do_sys_open+0x208/0x410
[   28.314977]  ? filp_open+0x60/0x60
[   28.318495]  ? security_file_ioctl+0x83/0xb0
[   28.322881]  SyS_ioctl+0x7f/0xb0
[   28.326223]  ? do_vfs_ioctl+0xff0/0xff0
[   28.330388]  do_syscall_64+0x1d5/0x640
[   28.334368]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   28.339537] RIP: 0033:0x43ee89
[   28.342709] RSP: 002b:00007ffec7cc9aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   28.350398] RAX: ffffffffffffffda RBX: 652e79726f6d656d RCX: 000000000043ee89
[   28.357667] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004
[   28.364929] RBP: 0000000000402e70 R08: 0000000000000000 R09: 0000000000400488
[   28.372195] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402f00
[   28.379678] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488
[   28.387056] Code: ff ff 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 41 54 49 89 fc 48 83 c7 08 48 89 fa 55 48 c1 ea 03 53 48 83 ec 18 <80> 3c 02 00 0f 85 f2 0c 00 00 49 8d 7c 24 10 4d 8b 74 24 08 48 
[   28.406492] RIP: rb_erase+0x29/0x1290 RSP: ffff88809624fa68
[   28.412408] ---[ end trace a4f7882c2ad05666 ]---
[   28.417332] Kernel panic - not syncing: Fatal exception
[   28.424183] Kernel Offset: disabled
[   28.428054] Rebooting in 86400 seconds..