INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   41.646231] ==================================================================
[   41.653646] BUG: KMSAN: uninit-value in kernel_ident_mapping_init+0x65a/0x8d0
[   41.660915] CPU: 1 PID: 4501 Comm: syz-executor109 Not tainted 4.16.0+ #87
[   41.667919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.677276] Call Trace:
[   41.679870]  dump_stack+0x185/0x1d0
[   41.683483]  ? kernel_ident_mapping_init+0x65a/0x8d0
[   41.688575]  kmsan_report+0x142/0x240
[   41.692368]  __msan_warning_32+0x6c/0xb0
[   41.696418]  kernel_ident_mapping_init+0x65a/0x8d0
[   41.701341]  machine_kexec_prepare+0x27f/0x1090
[   41.705993]  ? arch_kexec_pre_free_pages+0x30/0x30
[   41.710916]  SYSC_kexec_load+0xb8a/0xe80
[   41.714976]  SyS_kexec_load+0x66/0x90
[   41.718762]  do_syscall_64+0x309/0x430
[   41.722635]  ? kimage_alloc_page+0x1540/0x1540
[   41.727202]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   41.732382] RIP: 0033:0x43fc79
[   41.735554] RSP: 002b:00007ffca48ddc58 EFLAGS: 00000207 ORIG_RAX: 00000000000000f6
[   41.743243] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fc79
[   41.750495] RDX: 0000000020000000 RSI: 0000000000000001 RDI: 0000000000000000
[   41.757747] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
[   41.764999] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004015a0
[   41.772264] R13: 0000000000401630 R14: 0000000000000000 R15: 0000000000000000
[   41.779523] 
[   41.781136] Uninit was created at:
[   41.784685]  kmsan_alloc_meta_for_pages+0x161/0x3a0
[   41.789698]  kmsan_alloc_page+0x82/0xe0
[   41.793676]  __alloc_pages_nodemask+0xf5b/0x5dc0
[   41.798414]  alloc_pages_current+0x6b5/0x970
[   41.803594]  kimage_alloc_control_pages+0x177/0x1490
[   41.808683]  SYSC_kexec_load+0x85b/0xe80
[   41.812725]  SyS_kexec_load+0x66/0x90
[   41.816504]  do_syscall_64+0x309/0x430
[   41.820372]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   41.825536] ==================================================================
[   41.832871] Disabling lock debugging due to kernel taint
[   41.838299] Kernel panic - not syncing: panic_on_warn set ...
[   41.838299] 
[   41.845648] CPU: 1 PID: 4501 Comm: syz-executor109 Tainted: G    B            4.16.0+ #87
[   41.853945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.863283] Call Trace:
[   41.865866]  dump_stack+0x185/0x1d0
[   41.869475]  panic+0x39d/0x940
[   41.872666]  ? kernel_ident_mapping_init+0x65a/0x8d0
[   41.877773]  kmsan_report+0x238/0x240
[   41.881560]  __msan_warning_32+0x6c/0xb0
[   41.885608]  kernel_ident_mapping_init+0x65a/0x8d0
[   41.890538]  machine_kexec_prepare+0x27f/0x1090
[   41.895203]  ? arch_kexec_pre_free_pages+0x30/0x30
[   41.900121]  SYSC_kexec_load+0xb8a/0xe80
[   41.904169]  SyS_kexec_load+0x66/0x90
[   41.907963]  do_syscall_64+0x309/0x430
[   41.911838]  ? kimage_alloc_page+0x1540/0x1540
[   41.916408]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   41.921602] RIP: 0033:0x43fc79
[   41.924770] RSP: 002b:00007ffca48ddc58 EFLAGS: 00000207 ORIG_RAX: 00000000000000f6
[   41.932485] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fc79
[   41.939924] RDX: 0000000020000000 RSI: 0000000000000001 RDI: 0000000000000000
[   41.947200] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
[   41.954467] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004015a0
[   41.961725] R13: 0000000000401630 R14: 0000000000000000 R15: 0000000000000000
[   41.969603] Dumping ftrace buffer:
[   41.973131]    (ftrace buffer empty)
[   41.976817] Kernel Offset: disabled
[   41.980447] Rebooting in 86400 seconds..