[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   31.090185] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   35.591258] random: sshd: uninitialized urandom read (32 bytes read)
[   36.063217] random: sshd: uninitialized urandom read (32 bytes read)
[   37.185878] random: sshd: uninitialized urandom read (32 bytes read)
[   37.393346] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts.
[   42.912875] random: sshd: uninitialized urandom read (32 bytes read)
2018/05/15 00:27:15 parsed 1 programs
2018/05/15 00:27:15 executed programs: 0
[   43.504219] IPVS: ftp: loaded support on port[0] = 21
[   43.535908] IPVS: ftp: loaded support on port[0] = 21
[   43.555616] IPVS: ftp: loaded support on port[0] = 21
[   43.560974] IPVS: ftp: loaded support on port[0] = 21
[   43.569645] IPVS: ftp: loaded support on port[0] = 21
[   43.587745] IPVS: ftp: loaded support on port[0] = 21
[   43.603301] IPVS: ftp: loaded support on port[0] = 21
[   43.611165] IPVS: ftp: loaded support on port[0] = 21
[   43.746768] alg: No test for cmac(anubis) (cmac(anubis-generic))
[   45.451584] ==================================================================
[   45.459026] BUG: KMSAN: uninit-value in kick_process+0x12a/0x180
[   45.465194] CPU: 0 PID: 4542 Comm: udevd Not tainted 4.17.0-rc3+ #92
[   45.471696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.481070] Call Trace:
[   45.483683]  dump_stack+0x185/0x1d0
[   45.487335]  ? kick_process+0x12a/0x180
[   45.491334]  kmsan_report+0x142/0x240
[   45.495152]  __msan_warning_32+0x6c/0xb0
[   45.499233]  kick_process+0x12a/0x180
[   45.503046]  task_work_add+0x2cc/0x300
[   45.506955]  fput+0x146/0x2e0
[   45.510075]  filp_close+0x287/0x2e0
[   45.513711]  __close_fd+0x47b/0x4d0
[   45.517354]  __x64_sys_close+0x90/0x160
[   45.521337]  do_syscall_64+0x154/0x220
[   45.525239]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.530435] RIP: 0033:0x7fdfb39d62b0
[   45.534149] RSP: 002b:00007fff291cad28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[   45.541876] RAX: ffffffffffffffda RBX: 0000000001d54250 RCX: 00007fdfb39d62b0
[   45.549156] RDX: 00007fff291cdf80 RSI: 0000000000000002 RDI: 0000000000000007
[   45.556447] RBP: 0000000000625500 R08: 0000000000000001 R09: 000000000000ff18
[   45.563727] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff291cae00
[   45.571006] R13: 0000000000000001 R14: 00007fff291cad94 R15: 0000000001d54250
[   45.578289] 
[   45.579914] Uninit was stored to memory at:
[   45.584254]  kmsan_internal_chain_origin+0x12b/0x210
[   45.589379]  __msan_chain_origin+0x69/0xc0
[   45.593632]  set_task_cpu+0x6e2/0x7c0
[   45.597452]  try_to_wake_up+0xe6e/0x2090
[   45.601534]  default_wake_function+0x92/0xb0
[   45.605961]  __wake_up_locked+0x216/0x370
[   45.610126]  ep_poll_callback+0xd7c/0x11c0
[   45.614377]  __wake_up_common+0x44f/0xa60
[   45.618536]  __wake_up_common_lock+0x196/0x370
[   45.623133]  __wake_up_sync_key+0xcf/0x120
[   45.627382]  pipe_release+0x2cc/0x5a0
[   45.631220]  __fput+0x49e/0xa10
[   45.634533]  ____fput+0x37/0x40
[   45.637823]  task_work_run+0x243/0x2c0
[   45.641729]  do_exit+0x10e1/0x38d0
[   45.645288]  do_group_exit+0x1a0/0x360
[   45.649193]  __do_sys_exit_group+0x21/0x30
[   45.653448]  __se_sys_exit_group+0x14/0x20
[   45.657710]  __x64_sys_exit_group+0x4c/0x50
[   45.662050]  do_syscall_64+0x154/0x220
[   45.665955]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.671143] Local variable description: ----wait.i@do_epoll_wait
[   45.677296] Variable was created at:
[   45.681029]  do_epoll_wait+0x10c/0x17c0
[   45.685016]  __x64_sys_epoll_wait+0x116/0x170
[   45.689509] ==================================================================
[   45.696871] Disabling lock debugging due to kernel taint
[   45.702326] Kernel panic - not syncing: panic_on_warn set ...
[   45.702326] 
[   45.709705] CPU: 0 PID: 4542 Comm: udevd Tainted: G    B             4.17.0-rc3+ #92
[   45.717588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.726950] Call Trace:
[   45.729547]  dump_stack+0x185/0x1d0
[   45.733188]  panic+0x39d/0x940
[   45.736409]  ? kick_process+0x12a/0x180
[   45.740395]  kmsan_report+0x238/0x240
[   45.744207]  __msan_warning_32+0x6c/0xb0
[   45.748279]  kick_process+0x12a/0x180
[   45.752088]  task_work_add+0x2cc/0x300
[   45.755974]  fput+0x146/0x2e0
[   45.759062]  filp_close+0x287/0x2e0
[   45.762668]  __close_fd+0x47b/0x4d0
[   45.766276]  __x64_sys_close+0x90/0x160
[   45.771014]  do_syscall_64+0x154/0x220
[   45.774892]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.780061] RIP: 0033:0x7fdfb39d62b0
[   45.783748] RSP: 002b:00007fff291cad28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[   45.791432] RAX: ffffffffffffffda RBX: 0000000001d54250 RCX: 00007fdfb39d62b0
[   45.798680] RDX: 00007fff291cdf80 RSI: 0000000000000002 RDI: 0000000000000007
[   45.805926] RBP: 0000000000625500 R08: 0000000000000001 R09: 000000000000ff18
[   45.813177] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff291cae00
[   45.820438] R13: 0000000000000001 R14: 00007fff291cad94 R15: 0000000001d54250
[   45.828174] Dumping ftrace buffer:
[   45.831692]    (ftrace buffer empty)
[   45.835379] Kernel Offset: disabled
[   45.838984] Rebooting in 86400 seconds..