Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.508583] kasan: CONFIG_KASAN_INLINE enabled
[   34.513015] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
[   34.526502] Modules linked in:
[   34.529806] CPU: 1 PID: 2081 Comm: syz-executor009 Not tainted 4.4.174+ #4
[   34.536796] task: ffff8800b69517c0 task.stack: ffff8801d3f70000
[   34.542830] RIP: 0010:[<ffffffff8155748a>]  [<ffffffff8155748a>] __blockdev_direct_IO+0x36ea/0xb030
[   34.552147] RSP: 0018:ffff8801d3f77270  EFLAGS: 00010202
[   34.557577] RAX: 0000000000000004 RBX: dffffc0000000000 RCX: 000000000000000c
[   34.564834] RDX: 0000000000000000 RSI: ffffffff81557477 RDI: 0000000000000020
[   34.572125] RBP: ffff8801d3f77588 R08: 1ffff10017092240 R09: ffff8800b8491200
[   34.579416] R10: ffffed001709224e R11: ffff8800b8491277 R12: ffffea00074fc400
[   34.586664] R13: ffff8800b8491200 R14: ffff8801da016d40 R15: ffff8801cee40000
[   34.593941] FS:  0000000001d43880(0063) GS:ffff8801db700000(0000) knlGS:0000000000000000
[   34.602144] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.608017] CR2: 00000000200110ff CR3: 00000001d44b6000 CR4: 00000000001606b0
[   34.615270] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.622521] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.629781] Stack:
[   34.631908]  fffffbfff05c2202 ffff8801d3f77380 0005080000000000 0000000000001000
[   34.640065]  0000000000008420 ffff8801cee40079 0000000041b58ab3 0000000000011000
[   34.648066]  ffff8801d3f773d0 00001000d3f772e0 fffffffffffff000 0000000000000fff
[   34.656093] Call Trace:
[   34.658666]  [<ffffffff81553da0>] ? sb_init_dio_done_wq+0x80/0x80
[   34.664886]  [<ffffffff811f6ee0>] ? noop_count+0x40/0x40
[   34.670334]  [<ffffffff81201893>] ? __lock_acquire+0x22e3/0x4f50
[   34.676502]  [<ffffffff8164cc50>] ? _ext4_get_block+0x690/0x690
[   34.682675]  [<ffffffff8173d1fc>] ? ext4_ind_direct_IO+0x6dc/0xb90
[   34.688993]  [<ffffffff81708016>] ? ext4_journal_check_start+0x116/0x1a0
[   34.695834]  [<ffffffff817083ee>] ? __ext4_journal_start_sb+0x13e/0x510
[   34.702702]  [<ffffffff8173cf01>] ext4_ind_direct_IO+0x3e1/0xb90
[   34.708832]  [<ffffffff8173cb20>] ? ext4_ind_map_blocks+0x21f0/0x21f0
[   34.715394]  [<ffffffff8163fe21>] ext4_direct_IO+0x8c1/0x2a80
[   34.721260]  [<ffffffff8163f560>] ? ext4_end_io_dio+0xc0/0xc0
[   34.727121]  [<ffffffff816557de>] ? ext4_mark_inode_dirty+0x3fe/0xbf0
[   34.733681]  [<ffffffff8123a761>] ? debug_lockdep_rcu_enabled+0x71/0xa0
[   34.740415]  [<ffffffff81b0abec>] ? check_preemption_disabled+0x3c/0x200
[   34.747231]  [<ffffffff81b0abec>] ? check_preemption_disabled+0x3c/0x200
[   34.754072]  [<ffffffff813b520d>] ? filemap_check_errors+0x9d/0xe0
[   34.760388]  [<ffffffff813bcae6>] generic_file_direct_write+0x276/0x4f0
[   34.767224]  [<ffffffff813bc870>] ? filemap_write_and_wait_range+0xb0/0xb0
[   34.774233]  [<ffffffff814e9521>] ? file_update_time+0xc1/0x3c0
[   34.780273]  [<ffffffff8270c0d0>] ? mutex_trylock+0x500/0x500
[   34.786139]  [<ffffffff813bcfa5>] __generic_file_write_iter+0x245/0x540
[   34.792872]  [<ffffffff81633d3c>] ext4_file_write_iter+0x9ec/0xc70
[   34.799176]  [<ffffffff814fbd2c>] ? mntput_no_expire+0xfc/0x830
[   34.805371]  [<ffffffff81633350>] ? ext4_unwritten_wait+0x200/0x200
[   34.811786]  [<ffffffff811fefb1>] ? mark_held_locks+0xb1/0x100
[   34.817843]  [<ffffffff814af8b3>] ? pipe_lock+0x63/0x80
[   34.823193]  [<ffffffff8270c8ad>] ? mutex_lock_nested+0x7dd/0xb80
[   34.829416]  [<ffffffff8270c715>] ? mutex_lock_nested+0x645/0xb80
[   34.835644]  [<ffffffff814af8b3>] ? pipe_lock+0x63/0x80
[   34.841017]  [<ffffffff811ff5ad>] ? trace_hardirqs_on+0xd/0x10
[   34.847000]  [<ffffffff81496220>] vfs_iter_write+0x1d0/0x3f0
[   34.852794]  [<ffffffff81496050>] ? default_llseek+0x290/0x290
[   34.858741]  [<ffffffff81484025>] ? kasan_unpoison_shadow+0x35/0x50
[   34.865122]  [<ffffffff8153373d>] ? splice_from_pipe_next.part.0+0x20d/0x2c0
[   34.872298]  [<ffffffff81534731>] iter_file_splice_write+0x5c1/0xb30
[   34.878768]  [<ffffffff81534170>] ? vmsplice_to_user+0x1e0/0x1e0
[   34.884906]  [<ffffffff8123a98b>] ? rcu_read_lock_sched_held+0x10b/0x130
[   34.891740]  [<ffffffff8123b043>] ? rcu_sync_lockdep_assert+0x73/0xb0
[   34.898314]  [<ffffffff8149e9cf>] ? __sb_start_write+0x14f/0x310
[   34.904436]  [<ffffffff81534170>] ? vmsplice_to_user+0x1e0/0x1e0
[   34.910575]  [<ffffffff81537d31>] SyS_splice+0xd71/0x13a0
[   34.916091]  [<ffffffff821dbb60>] ? SyS_accept+0x30/0x30
[   34.921519]  [<ffffffff81536fc0>] ? compat_SyS_vmsplice+0x160/0x160
[   34.927907]  [<ffffffff810021a4>] ? lockdep_sys_exit_thunk+0x12/0x14
[   34.934569]  [<ffffffff82718ba1>] entry_SYSCALL_64_fastpath+0x1e/0x9a
[   34.941128] Code: 00 00 e8 aa a9 e8 ff 48 c7 84 24 50 02 00 00 00 00 00 00 e8 79 21 db ff 48 8b 84 24 c8 00 00 00 48 8d 78 20 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 10 5b 00 00 48 8b 84 24 c8 00 00 00 48 8b 40 
[   34.968338] RIP  [<ffffffff8155748a>] __blockdev_direct_IO+0x36ea/0xb030
[   34.975282]  RSP <ffff8801d3f77270>
[   34.979134] ---[ end trace 19159a0b7604f9c0 ]---
[   34.983904] Kernel panic - not syncing: Fatal exception
[   34.989853] Kernel Offset: disabled
[   34.993593] Rebooting in 86400 seconds..