[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   30.764426] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   35.582377] random: sshd: uninitialized urandom read (32 bytes read)
[   36.177895] random: sshd: uninitialized urandom read (32 bytes read)
[   37.236812] random: sshd: uninitialized urandom read (32 bytes read)
[   67.022722] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts.
[   72.525606] random: sshd: uninitialized urandom read (32 bytes read)
2018/05/22 18:47:02 parsed 1 programs
2018/05/22 18:47:02 executed programs: 0
[   73.062884] IPVS: ftp: loaded support on port[0] = 21
[   73.081656] IPVS: ftp: loaded support on port[0] = 21
[   73.088747] IPVS: ftp: loaded support on port[0] = 21
[   73.101476] IPVS: ftp: loaded support on port[0] = 21
[   73.127620] IPVS: ftp: loaded support on port[0] = 21
[   73.134713] IPVS: ftp: loaded support on port[0] = 21
[   73.162618] IPVS: ftp: loaded support on port[0] = 21
[   73.170899] IPVS: ftp: loaded support on port[0] = 21
[   73.228974] ip (4567) used greatest stack depth: 54520 bytes left
[   73.301545] ==================================================================
[   73.308937] BUG: KMSAN: uninit-value in __list_add_valid+0x1b8/0x450
[   73.315409] CPU: 1 PID: 4568 Comm: syz-executor6 Not tainted 4.17.0-rc5+ #102
[   73.322740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.332068] Call Trace:
[   73.334634]  dump_stack+0x185/0x1d0
[   73.338235]  ? __list_add_valid+0x1b8/0x450
[   73.342540]  kmsan_report+0x149/0x260
[   73.346314]  __msan_warning_32+0x6e/0xc0
[   73.350350]  __list_add_valid+0x1b8/0x450
[   73.354476]  enqueue_task_fair+0xe02/0x4470
[   73.358778]  ? update_load_avg+0x2cc0/0x2cc0
[   73.363170]  wake_up_new_task+0xbe9/0x16f0
[   73.367383]  _do_fork+0x765/0xf00
[   73.370815]  __x64_sys_clone+0x15e/0x1b0
[   73.374878]  do_syscall_64+0x152/0x230
[   73.378750]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.383923] RIP: 0033:0x41f829
[   73.387087] RSP: 002b:0000000000a3fad0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   73.394768] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000041f829
[   73.402012] RDX: 0000000000a3fadc RSI: 0000000000000000 RDI: 0000000000100011
[   73.409256] RBP: 0000000000a3fc80 R08: 0000000000a44a60 R09: 0000000000000023
[   73.416502] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000a3fe60
[   73.423749] R13: 0000000000411910 R14: 0000000000000000 R15: 0000000000000000
[   73.430997] 
[   73.432598] Uninit was stored to memory at:
[   73.436898]  kmsan_internal_chain_origin+0x12b/0x210
[   73.441983]  __msan_chain_origin+0x69/0xc0
[   73.446193]  pick_next_task_fair+0x2464/0x2520
[   73.450749]  pick_next_task+0x1b1/0x410
[   73.454696]  __schedule+0x20b/0x730
[   73.458300]  do_task_dead+0xc8/0xf0
[   73.461902]  do_exit+0x340e/0x38d0
[   73.465415]  do_group_exit+0x1a0/0x360
[   73.469274]  __do_sys_exit_group+0x21/0x30
[   73.473492]  __se_sys_exit_group+0x14/0x20
[   73.477708]  __x64_sys_exit_group+0x4c/0x50
[   73.482003]  do_syscall_64+0x152/0x230
[   73.485881]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.491042] Local variable description: ----tlb.i@ldt_arch_exit_mmap
[   73.497504] Variable was created at:
[   73.501194]  ldt_arch_exit_mmap+0x46/0x160
[   73.505406]  exit_mmap+0x3ef/0x970
[   73.508916] ==================================================================
[   73.516255] Disabling lock debugging due to kernel taint
[   73.521676] Kernel panic - not syncing: panic_on_warn set ...
[   73.521676] 
[   73.529015] CPU: 1 PID: 4568 Comm: syz-executor6 Tainted: G    B             4.17.0-rc5+ #102
[   73.537647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.546971] Call Trace:
[   73.549550]  dump_stack+0x185/0x1d0
[   73.553240]  panic+0x39d/0x940
[   73.556416]  ? __list_add_valid+0x1b8/0x450
[   73.560711]  kmsan_report+0x260/0x260
[   73.564487]  __msan_warning_32+0x6e/0xc0
[   73.568523]  __list_add_valid+0x1b8/0x450
[   73.572645]  enqueue_task_fair+0xe02/0x4470
[   73.576944]  ? update_load_avg+0x2cc0/0x2cc0
[   73.581328]  wake_up_new_task+0xbe9/0x16f0
[   73.585549]  _do_fork+0x765/0xf00
[   73.588980]  __x64_sys_clone+0x15e/0x1b0
[   73.593024]  do_syscall_64+0x152/0x230
[   73.596904]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.602069] RIP: 0033:0x41f829
[   73.605234] RSP: 002b:0000000000a3fad0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   73.613003] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000041f829
[   73.620249] RDX: 0000000000a3fadc RSI: 0000000000000000 RDI: 0000000000100011
[   73.627492] RBP: 0000000000a3fc80 R08: 0000000000a44a60 R09: 0000000000000023
[   73.634741] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000a3fe60
[   73.641991] R13: 0000000000411910 R14: 0000000000000000 R15: 0000000000000000
[   74.750446] Shutting down cpus with NMI
[   74.766627] Dumping ftrace buffer:
[   74.770160]    (ftrace buffer empty)
[   74.773849] Kernel Offset: disabled
[   74.777461] Rebooting in 86400 seconds..