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 '10.128.0.36' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.976038] ==================================================================
[   32.983459] BUG: KMSAN: uninit-value in move_addr_to_user+0x32e/0x530
[   32.990032] CPU: 1 PID: 3586 Comm: syzkaller481044 Not tainted 4.16.0+ #82
[   32.997028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.006416] Call Trace:
[   33.008997]  dump_stack+0x185/0x1d0
[   33.012632]  ? kmsan_internal_check_memory+0x145/0x1d0
[   33.017899]  kmsan_report+0x142/0x240
[   33.021701]  kmsan_internal_check_memory+0x164/0x1d0
[   33.026943]  kmsan_copy_to_user+0x69/0x160
[   33.031218]  move_addr_to_user+0x32e/0x530
[   33.035451]  ___sys_recvmsg+0x4e2/0x810
[   33.039415]  ? __fget_light+0x56/0x710
[   33.043284]  ? __fdget+0x4e/0x60
[   33.046634]  ? __fget_light+0x1dc/0x710
[   33.050607]  ? __msan_metadata_ptr_for_load_4+0x10/0x20
[   33.055950]  ? __fget_light+0x1f5/0x710
[   33.059909]  __sys_recvmmsg+0x54e/0xdb0
[   33.063868]  ? kmsan_set_origin+0x9e/0x160
[   33.068088]  SYSC_recvmmsg+0x29b/0x3e0
[   33.071956]  SyS_recvmmsg+0x76/0xa0
[   33.075563]  do_syscall_64+0x309/0x430
[   33.079432]  ? __sys_recvmmsg+0xdb0/0xdb0
[   33.083568]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   33.088759] RIP: 0033:0x4401c9
[   33.091935] RSP: 002b:00007ffc56f73098 EFLAGS: 00000217 ORIG_RAX: 000000000000012b
[   33.099636] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401c9
[   33.106901] RDX: 0000000000000001 RSI: 0000000020003ac0 RDI: 0000000000000003
[   33.114159] RBP: 00000000006ca018 R08: 0000000020003bc0 R09: 0000000000000010
[   33.121424] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401af0
[   33.128677] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000
[   33.135940] 
[   33.137551] Local variable description: ----addr@___sys_recvmsg
[   33.143578] Variable was created at:
[   33.147455]  ___sys_recvmsg+0xd5/0x810
[   33.151339]  __sys_recvmmsg+0x54e/0xdb0
[   33.155300] 
[   33.156904] Bytes 8-15 of 16 are uninitialized
[   33.161469] ==================================================================
[   33.168809] Disabling lock debugging due to kernel taint
[   33.174242] Kernel panic - not syncing: panic_on_warn set ...
[   33.174242] 
[   33.181589] CPU: 1 PID: 3586 Comm: syzkaller481044 Tainted: G    B            4.16.0+ #82
[   33.189882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.199224] Call Trace:
[   33.201824]  dump_stack+0x185/0x1d0
[   33.205444]  panic+0x39d/0x940
[   33.208644]  ? kmsan_internal_check_memory+0x145/0x1d0
[   33.213915]  kmsan_report+0x238/0x240
[   33.217704]  kmsan_internal_check_memory+0x164/0x1d0
[   33.222799]  kmsan_copy_to_user+0x69/0x160
[   33.227023]  move_addr_to_user+0x32e/0x530
[   33.231249]  ___sys_recvmsg+0x4e2/0x810
[   33.235211]  ? __fget_light+0x56/0x710
[   33.239079]  ? __fdget+0x4e/0x60
[   33.242433]  ? __fget_light+0x1dc/0x710
[   33.246389]  ? __msan_metadata_ptr_for_load_4+0x10/0x20
[   33.251733]  ? __fget_light+0x1f5/0x710
[   33.255694]  __sys_recvmmsg+0x54e/0xdb0
[   33.259660]  ? kmsan_set_origin+0x9e/0x160
[   33.263887]  SYSC_recvmmsg+0x29b/0x3e0
[   33.267766]  SyS_recvmmsg+0x76/0xa0
[   33.271385]  do_syscall_64+0x309/0x430
[   33.275260]  ? __sys_recvmmsg+0xdb0/0xdb0
[   33.279394]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   33.284566] RIP: 0033:0x4401c9
[   33.287737] RSP: 002b:00007ffc56f73098 EFLAGS: 00000217 ORIG_RAX: 000000000000012b
[   33.295431] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401c9
[   33.302706] RDX: 0000000000000001 RSI: 0000000020003ac0 RDI: 0000000000000003
[   33.309961] RBP: 00000000006ca018 R08: 0000000020003bc0 R09: 0000000000000010
[   33.317219] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401af0
[   33.324473] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000
[   33.332255] Dumping ftrace buffer:
[   33.335783]    (ftrace buffer empty)
[   33.339475] Kernel Offset: disabled
[   33.343080] Rebooting in 86400 seconds..