[....] 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: [   38.592659] random: sshd: uninitialized urandom read (32 bytes read)
[   39.139705] audit: type=1400 audit(1540882322.610:6): avc:  denied  { map } for  pid=1766 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
[   39.182751] random: sshd: uninitialized urandom read (32 bytes read)
[   39.624363] random: sshd: uninitialized urandom read (32 bytes read)
[   39.781966] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.40' (ECDSA) to the list of known hosts.
[   45.290537] random: sshd: uninitialized urandom read (32 bytes read)
executing program
executing program
executing program
executing program
executing program
executing program
[   45.379937] audit: type=1400 audit(1540882328.850:7): avc:  denied  { map } for  pid=1784 comm="syz-executor847" path="/root/syz-executor847380617" dev="sda1" ino=16481 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
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[   45.621640] ------------[ cut here ]------------
[   45.626475] WARNING: CPU: 1 PID: 72 at fs/direct-io.c:293 dio_complete+0x578/0x800
[   45.634163] Kernel panic - not syncing: panic_on_warn set ...
[   45.634163] 
[   45.641587] CPU: 1 PID: 72 Comm: kworker/1:2 Not tainted 4.14.78+ #26
[   45.648161] Workqueue: dio/sda1 dio_aio_complete_work
[   45.653333] Call Trace:
[   45.655997]  dump_stack+0xb9/0x11b
[   45.659519]  ? dio_complete+0x4c0/0x800
[   45.663480]  panic+0x1bf/0x3a4
[   45.666665]  ? add_taint.cold.4+0x16/0x16
[   45.670795]  ? __probe_kernel_read+0x163/0x1c0
[   45.675358]  ? dio_complete+0x578/0x800
[   45.679314]  __warn.cold.7+0x148/0x185
[   45.683220]  ? dio_complete+0x578/0x800
[   45.687241]  report_bug+0x1f7/0x26c
[   45.690950]  do_error_trap+0x1ba/0x2c0
[   45.694831]  ? math_error+0x2d0/0x2d0
[   45.698613]  ? clear_shadow_entry+0x190/0x190
[   45.703100]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   45.707933]  invalid_op+0x18/0x40
[   45.711367] RIP: 0010:dio_complete+0x578/0x800
[   45.715925] RSP: 0018:ffff8801d5f4fd10 EFLAGS: 00010297
[   45.721270] RAX: ffff8801d5f40000 RBX: ffff8801c4552d80 RCX: 0000000000000000
[   45.728558] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d5f40024
[   45.735812] RBP: 0000000000010000 R08: 0000000000000001 R09: 0000000000000000
[   45.743061] R10: ffff8801d5f40880 R11: 0000000000000001 R12: ffff8801c38044a8
[   45.750321] R13: 0000000000010000 R14: 0000000000000003 R15: ffff8801c4552e18
[   45.757591]  ? ext4_update_bh_state+0xe0/0xe0
[   45.762083]  process_one_work+0x86e/0x15c0
[   45.766316]  ? pwq_dec_nr_in_flight+0x2b0/0x2b0
[   45.770981]  worker_thread+0xdc/0x1000
[   45.774850]  ? process_one_work+0x15c0/0x15c0
[   45.779375]  ? process_one_work+0x15c0/0x15c0
[   45.783854]  kthread+0x348/0x420
[   45.787212]  ? kthread_create_on_node+0xe0/0xe0
[   45.791864]  ret_from_fork+0x3a/0x50
[   45.795991] Kernel Offset: 0x2e000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   45.806900] Rebooting in 86400 seconds..