Warning: Permanently added '10.128.0.136' (ECDSA) to the list of known hosts.
[   48.406170] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   48.514446] audit: type=1400 audit(1570246628.764:7): avc:  denied  { map } for  pid=1790 comm="syz-executor684" path="/root/syz-executor684134571" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[   48.519005] kasan: CONFIG_KASAN_INLINE enabled
[   48.545930] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   48.553686] general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   48.560516] Modules linked in:
[   48.563701] CPU: 0 PID: 1790 Comm: syz-executor684 Not tainted 4.14.146+ #0
[   48.570784] task:         (ptrval) task.stack:         (ptrval)
[   48.576855] RIP: 0010:__blockdev_direct_IO+0x1dcf/0xe24e
[   48.582526] RSP: 0018:ffff8881cbbe7330 EFLAGS: 00010202
[   48.588225] RAX: dffffc0000000000 RBX: ffffea00072fe41c RCX: ffffffffac638603
[   48.595480] RDX: 0000000000000004 RSI: 0000000000000004 RDI: 0000000000000020
[   48.602732] RBP: ffff8881cbbe7668 R08: 0000000000000000 R09: fffff94000e5fc84
[   48.610005] R10: fffff94000e5fc83 R11: ffffea00072fe41f R12: ffffea00072fe400
[   48.617270] R13: ffffea00072fe400 R14: 0000000000000000 R15: ffff8881cbf50000
[   48.624524] FS:  00005555566f2880(0000) GS:ffff8881d7400000(0000) knlGS:0000000000000000
[   48.632734] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.638614] CR2: 0000000020011000 CR3: 00000001cbe20001 CR4: 00000000001606b0
[   48.645864] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.653111] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.660371] Call Trace:
[   48.662956]  ? sb_init_dio_done_wq+0x90/0x90
[   48.667364]  ? __bfs+0x25/0x540
[   48.670634]  ? ext4_dio_get_block_unwritten_sync+0xd0/0xd0
[   48.676246]  ? lock_downgrade+0x5d0/0x5d0
[   48.680379]  ext4_direct_IO+0xa4f/0x2820
[   48.684433]  ? ext4_dio_get_block_unwritten_sync+0xd0/0xd0
[   48.690056]  ? ext4_da_write_begin+0x10c0/0x10c0
[   48.694798]  ? current_time+0x16/0xb0
[   48.698580]  ? mark_held_locks+0xa6/0xf0
[   48.702636]  ? timespec_trunc+0xc9/0x140
[   48.706673]  ? put_itimerspec64+0x1c0/0x1c0
[   48.710972]  ? trace_hardirqs_on_caller+0x37b/0x540
[   48.715966]  ? current_kernel_time64+0xb6/0x100
[   48.720701]  ? current_time+0x89/0xb0
[   48.724480]  ? filemap_check_errors+0x8b/0xb0
[   48.728954]  generic_file_direct_write+0x1e4/0x430
[   48.733868]  __generic_file_write_iter+0x209/0x550
[   48.738824]  ? generic_write_checks+0x252/0x410
[   48.743483]  ext4_file_write_iter+0x58f/0xdb0
[   48.747961]  ? ext4_llseek+0x7f0/0x7f0
[   48.751946]  do_iter_readv_writev+0x379/0x580
[   48.756426]  ? clone_verify_area+0x1e0/0x1e0
[   48.760839]  ? avc_policy_seqno+0x5/0x10
[   48.764883]  ? security_file_permission+0x88/0x1e0
[   48.769796]  do_iter_write+0x152/0x550
[   48.774725]  vfs_iter_write+0x70/0xa0
[   48.778506]  iter_file_splice_write+0x560/0xa50
[   48.783249]  ? vmsplice_to_user+0x1e0/0x1e0
[   48.787553]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   48.792983]  ? rcu_read_lock_sched_held+0x10a/0x130
[   48.798017]  ? vmsplice_to_user+0x1e0/0x1e0
[   48.802321]  SyS_splice+0xcd6/0x1270
[   48.806020]  ? filp_open+0x60/0x60
[   48.809547]  ? SyS_recv+0x40/0x40
[   48.812994]  ? compat_SyS_vmsplice+0x150/0x150
[   48.817561]  ? do_syscall_64+0x43/0x520
[   48.821513]  ? compat_SyS_vmsplice+0x150/0x150
[   48.826072]  do_syscall_64+0x19b/0x520
[   48.829944]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.835117] RIP: 0033:0x4402f9
[   48.838282] RSP: 002b:00007fff1dbd9db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[   48.845966] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
[   48.853214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000004
[   48.860641] RBP: 00000000006ca018 R08: 00000000ffffffff R09: 0000000000000000
[   48.867887] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b80
[   48.875133] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000
[   48.882389] Code: ec ad e8 85 69 e9 ff 0f 0b e8 0e bc cd ff 48 8b 84 24 e8 00 00 00 48 8d 78 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 37 a0 00 00 48 8b 84 24 e8 00 00 00 4c 8b 60 
[   48.901473] RIP: __blockdev_direct_IO+0x1dcf/0xe24e RSP: ffff8881cbbe7330
[   48.909668] ---[ end trace 57640552f23b3075 ]---
[   48.914462] Kernel panic - not syncing: Fatal exception
[   48.920619] Kernel Offset: 0x2b000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   48.931527] Rebooting in 86400 seconds..