[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   31.560717] random: sshd: uninitialized urandom read (32 bytes read)
[   32.118813] audit: type=1400 audit(1541068044.545:6): 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
[   32.170896] random: sshd: uninitialized urandom read (32 bytes read)
[   32.611266] random: sshd: uninitialized urandom read (32 bytes read)
[   32.763364] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.30' (ECDSA) to the list of known hosts.
[   44.277763] random: sshd: uninitialized urandom read (32 bytes read)
[   44.382885] audit: type=1400 audit(1541068056.815:7): avc:  denied  { map } for  pid=1789 comm="syz-executor490" path="/root/syz-executor490986911" 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
executing program
[   44.668817] ------------[ cut here ]------------
[   44.673728] WARNING: CPU: 1 PID: 68 at fs/direct-io.c:293 dio_complete+0x578/0x800
[   44.681739] Kernel panic - not syncing: panic_on_warn set ...
[   44.681739] 
[   44.689253] CPU: 1 PID: 68 Comm: kworker/1:1 Not tainted 4.14.78+ #26
[   44.695976] Workqueue: dio/sda1 dio_aio_complete_work
[   44.701155] Call Trace:
[   44.703758]  dump_stack+0xb9/0x11b
[   44.707291]  ? dio_complete+0x4c0/0x800
[   44.711258]  panic+0x1bf/0x3a4
[   44.714441]  ? add_taint.cold.4+0x16/0x16
[   44.718582]  ? __probe_kernel_read+0x163/0x1c0
[   44.723158]  ? dio_complete+0x578/0x800
[   44.727165]  __warn.cold.7+0x148/0x185
[   44.731219]  ? dio_complete+0x578/0x800
[   44.735216]  report_bug+0x1f7/0x26c
[   44.738834]  do_error_trap+0x1ba/0x2c0
[   44.742714]  ? math_error+0x2d0/0x2d0
[   44.746506]  ? clear_shadow_entry+0x190/0x190
[   44.750998]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   44.755836]  invalid_op+0x18/0x40
[   44.759284] RIP: 0010:dio_complete+0x578/0x800
[   44.763854] RSP: 0018:ffff8801d6cafd10 EFLAGS: 00010297
[   44.769221] RAX: ffff8801d6ca0000 RBX: ffff8801d0db8000 RCX: 0000000000000000
[   44.776482] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d6ca0024
[   44.783908] RBP: 0000000000010000 R08: 0000000000000001 R09: 0000000000000000
[   44.791167] R10: ffff8801d6ca0880 R11: 0000000000000001 R12: ffff8801c444b478
[   44.798451] R13: 0000000000010000 R14: 0000000000000003 R15: ffff8801d0db8098
[   44.805824]  ? ext4_update_bh_state+0xe0/0xe0
[   44.810322]  process_one_work+0x86e/0x15c0
[   44.814552]  ? pwq_dec_nr_in_flight+0x2b0/0x2b0
[   44.819232]  worker_thread+0xdc/0x1000
[   44.823224]  ? process_one_work+0x15c0/0x15c0
[   44.827849]  ? process_one_work+0x15c0/0x15c0
[   44.832334]  kthread+0x348/0x420
[   44.835692]  ? kthread_create_on_node+0xe0/0xe0
[   44.840352]  ret_from_fork+0x3a/0x50
[   44.844529] Kernel Offset: 0x3a600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   44.855451] Rebooting in 86400 seconds..