[....] Starting OpenBSD Secure Shell server: sshd[   11.081320] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   23.907078] random: sshd: uninitialized urandom read (32 bytes read)
[   24.281839] audit: type=1400 audit(1556498123.043:6): avc:  denied  { map } for  pid=1765 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
[   24.318772] random: sshd: uninitialized urandom read (32 bytes read)
[   24.811984] random: sshd: uninitialized urandom read (32 bytes read)
[   41.524531] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts.
[   47.098462] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   47.201564] audit: type=1400 audit(1556498145.963:7): avc:  denied  { map } for  pid=1789 comm="syz-executor973" path="/root/syz-executor973684849" dev="sda1" ino=16461 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
executing program
executing program
executing program
executing program
executing program
[   48.315367] ------------[ cut here ]------------
[   48.320317] WARNING: CPU: 0 PID: 1807 at fs/direct-io.c:293 dio_complete+0x641/0x7e0
[   48.328581] Kernel panic - not syncing: panic_on_warn set ...
[   48.328581] 
[   48.335940] CPU: 0 PID: 1807 Comm: syz-executor973 Not tainted 4.14.113+ #61
[   48.343118] Call Trace:
[   48.345821]  dump_stack+0xb9/0x10e
[   48.349358]  panic+0x1d9/0x3c2
[   48.352652]  ? add_taint.cold+0x16/0x16
[   48.356749]  ? dio_complete+0x641/0x7e0
[   48.360981]  ? __probe_kernel_read+0x163/0x1c0
[   48.365696]  ? dio_complete+0x641/0x7e0
[   48.369767]  __warn.cold+0x2f/0x3b
[   48.373489]  ? dio_complete+0x641/0x7e0
[   48.377508]  ? report_bug+0x20a/0x248
[   48.381368]  ? do_error_trap+0x1bf/0x2d0
[   48.385427]  ? math_error+0x2d0/0x2d0
[   48.389265]  ? clear_shadow_entry+0x190/0x190
[   48.393885]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   48.398730]  ? invalid_op+0x18/0x40
[   48.402356]  ? dio_complete+0x641/0x7e0
[   48.406543]  ? dio_complete+0x641/0x7e0
[   48.410669]  ? ext4_update_bh_state+0xe0/0xe0
[   48.415166]  ? __blockdev_direct_IO+0x8459/0xdf20
[   48.420005]  ? mark_held_locks+0xa6/0xf0
[   48.424072]  ? sb_init_dio_done_wq+0x80/0x80
[   48.428671]  ? check_preemption_disabled+0x35/0x1f0
[   48.433794]  ? delete_node+0x1eb/0x670
[   48.437687]  ? count_shadow_nodes+0x1e0/0x1e0
[   48.442228]  ? ext4_dio_get_block_unwritten_async+0x1b0/0x1b0
[   48.448165]  ? invalidate_inode_pages2_range+0x647/0x960
[   48.453618]  ? lru_add_drain_cpu+0x18e/0x3d0
[   48.458033]  ? put_pages_list+0x280/0x280
[   48.462181]  ? ext4_direct_IO+0x976/0x2800
[   48.466423]  ? ext4_dio_get_block_unwritten_async+0x1b0/0x1b0
[   48.472310]  ? ext4_da_write_begin+0x1040/0x1040
[   48.477079]  ? __filemap_fdatawrite_range+0x1ac/0x290
[   48.482617]  ? mark_held_locks+0xa6/0xf0
[   48.486686]  ? current_time+0x89/0xb0
[   48.490480]  ? filemap_check_errors+0x8b/0xb0
[   48.495066]  ? generic_file_direct_write+0x1e4/0x430
[   48.500400]  ? __generic_file_write_iter+0x209/0x550
[   48.505590]  ? generic_write_checks+0x252/0x410
[   48.510258]  ? ext4_file_write_iter+0x55a/0xe40
[   48.514922]  ? ext4_llseek+0x7f0/0x7f0
[   48.518795]  ? kasan_kmalloc.part.0+0xa6/0xd0
[   48.523333]  ? kasan_kmalloc.part.0+0x4f/0xd0
[   48.527829]  ? __kmalloc+0x143/0x340
[   48.531536]  ? iter_file_splice_write+0x156/0xa50
[   48.536374]  ? direct_splice_actor+0x118/0x160
[   48.540951]  ? splice_direct_to_actor+0x292/0x760
[   48.545784]  ? do_splice_direct+0x177/0x240
[   48.550130]  ? do_sendfile+0x493/0xb20
[   48.554136]  ? do_iter_readv_writev+0x379/0x580
[   48.558813]  ? clone_verify_area+0x1e0/0x1e0
[   48.563219]  ? avc_policy_seqno+0x5/0x10
[   48.567365]  ? security_file_permission+0x88/0x1e0
[   48.572292]  ? do_iter_write+0x152/0x550
[   48.576447]  ? kasan_unpoison_shadow+0x30/0x40
[   48.581276]  ? kasan_kmalloc+0x76/0xc0
[   48.585157]  ? vfs_iter_write+0x70/0xa0
[   48.589172]  ? iter_file_splice_write+0x560/0xa50
[   48.594009]  ? generic_file_splice_read+0x377/0x540
[   48.599016]  ? vmsplice_to_user+0x1e0/0x1e0
[   48.603396]  ? add_to_pipe+0x350/0x350
[   48.607274]  ? __inode_security_revalidate+0xcf/0x120
[   48.612457]  ? security_file_permission+0x88/0x1e0
[   48.617386]  ? vmsplice_to_user+0x1e0/0x1e0
[   48.621704]  ? direct_splice_actor+0x118/0x160
[   48.626300]  ? splice_direct_to_actor+0x292/0x760
[   48.631134]  ? generic_pipe_buf_nosteal+0x10/0x10
[   48.635965]  ? do_splice_to+0x150/0x150
[   48.640007]  ? security_file_permission+0x88/0x1e0
[   48.645136]  ? do_splice_direct+0x177/0x240
[   48.649703]  ? splice_direct_to_actor+0x760/0x760
[   48.654650]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   48.660278]  ? rcu_read_lock_sched_held+0x10a/0x130
[   48.665401]  ? do_sendfile+0x493/0xb20
[   48.669288]  ? do_compat_pwritev64+0x170/0x170
[   48.674225]  ? SyS_futex+0x1c5/0x2c3
[   48.677928]  ? SyS_futex+0x1cf/0x2c3
[   48.681777]  ? SyS_sendfile64+0x11f/0x140
[   48.685916]  ? SyS_sendfile+0x150/0x150
[   48.690015]  ? do_syscall_64+0x43/0x4b0
[   48.693998]  ? SyS_sendfile+0x150/0x150
[   48.698198]  ? do_syscall_64+0x19b/0x4b0
[   48.702355]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   48.708340] Kernel Offset: 0x33a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   48.719562] Rebooting in 86400 seconds..