[....] 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: [   33.175123] random: sshd: uninitialized urandom read (32 bytes read)
[   33.424197] audit: type=1400 audit(1564051824.142:6): avc:  denied  { map } for  pid=1773 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
[   33.480724] random: sshd: uninitialized urandom read (32 bytes read)
[   34.019743] random: sshd: uninitialized urandom read (32 bytes read)
[   34.189902] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.169' (ECDSA) to the list of known hosts.
[   39.760740] random: sshd: uninitialized urandom read (32 bytes read)
[   39.849136] audit: type=1400 audit(1564051830.562:7): avc:  denied  { map } for  pid=1785 comm="syz-executor035" path="/root/syz-executor035951206" 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
[   39.851500] ------------[ cut here ]------------
[   39.880300] WARNING: CPU: 0 PID: 1785 at mm/page_alloc.c:4188 __alloc_pages_nodemask+0x3d5/0x2370
[   39.889341] Kernel panic - not syncing: panic_on_warn set ...
[   39.889341] 
[   39.896691] CPU: 0 PID: 1785 Comm: syz-executor035 Not tainted 4.14.134+ #19
[   39.903851] Call Trace:
[   39.906423]  dump_stack+0xca/0x134
[   39.910049]  panic+0x1ea/0x3d3
[   39.913243]  ? add_taint.cold+0x16/0x16
[   39.917210]  ? __alloc_pages_nodemask+0x3d5/0x2370
[   39.922335]  ? __probe_kernel_read+0x163/0x1c0
[   39.927383]  ? __alloc_pages_nodemask+0x3d5/0x2370
[   39.932502]  __warn.cold+0x2f/0x3a
[   39.936048]  ? __alloc_pages_nodemask+0x3d5/0x2370
[   39.941035]  ? report_bug+0x20a/0x248
[   39.944892]  ? do_error_trap+0x1bf/0x2d0
[   39.949481]  ? math_error+0x2d0/0x2d0
[   39.953347]  ? trace_hardirqs_on_caller+0x37b/0x540
[   39.958594]  ? __lock_acquire+0x5dc/0x42e0
[   39.963747]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   39.968684]  ? invalid_op+0x18/0x40
[   39.972311]  ? __alloc_pages_nodemask+0x3d5/0x2370
[   39.977245]  ? lock_acquire+0x12b/0x360
[   39.981248]  ? uinput_ioctl_handler.isra.0+0xa6/0x1850
[   39.987056]  ? gfp_pfmemalloc_allowed+0x150/0x150
[   39.991886]  ? avc_has_extended_perms+0x5e0/0xc20
[   39.996771]  ? lock_downgrade+0x5d0/0x5d0
[   40.000914]  ? avc_has_extended_perms+0xd0/0xc20
[   40.005652]  ? check_preemption_disabled+0x35/0x1f0
[   40.010648]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[   40.016104]  ? kmalloc_order+0x1e/0x50
[   40.019981]  ? kmalloc_order_trace+0x17/0x160
[   40.024553]  ? input_mt_init_slots+0xca/0x3f0
[   40.029052]  ? uinput_ioctl_handler.isra.0+0x13df/0x1850
[   40.034510]  ? uinput_request_submit.part.0+0x280/0x280
[   40.039862]  ? debug_check_no_obj_freed+0x2a9/0x5c0
[   40.044863]  ? debug_check_no_obj_freed+0x148/0x5c0
[   40.049860]  ? _raw_spin_unlock_irqrestore+0x54/0x70
[   40.054949]  ? trace_hardirqs_on_caller+0x37b/0x540
[   40.060050]  ? uinput_compat_ioctl+0x90/0x90
[   40.064464]  ? do_vfs_ioctl+0xabe/0x1040
[   40.068512]  ? selinux_file_ioctl+0x426/0x590
[   40.073120]  ? selinux_file_ioctl+0x116/0x590
[   40.077621]  ? ioctl_preallocate+0x1e0/0x1e0
[   40.082020]  ? selinux_socket_sock_rcv_skb+0x610/0x610
[   40.087414]  ? rcu_read_lock_sched_held+0x10a/0x130
[   40.092428]  ? putname+0xcd/0x110
[   40.096109]  ? do_sys_open+0x255/0x590
[   40.100005]  ? filp_open+0x60/0x60
[   40.103532]  ? security_file_ioctl+0x7c/0xb0
[   40.107921]  ? SyS_ioctl+0x7f/0xb0
[   40.111442]  ? do_vfs_ioctl+0x1040/0x1040
[   40.115572]  ? do_syscall_64+0x19b/0x520
[   40.119728]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   40.125721] Kernel Offset: 0x26600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   40.136649] Rebooting in 86400 seconds..