[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.964613] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 20.643978] random: sshd: uninitialized urandom read (32 bytes read) [ 20.909679] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.405169] random: sshd: uninitialized urandom read (32 bytes read) [ 21.574368] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.57' (ECDSA) to the list of known hosts. [ 27.050211] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.280671] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 [ 27.280671] [ 27.290000] CPU: 1 PID: 1 Comm: init Not tainted 4.18.0-rc8+ #180 [ 27.296255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.305607] Call Trace: [ 27.308205] dump_stack+0x1c9/0x2b4 [ 27.311850] ? dump_stack_print_info.cold.2+0x52/0x52 [ 27.317067] panic+0x238/0x4e7 [ 27.320277] ? add_taint.cold.5+0x16/0x16 [ 27.324443] ? _raw_write_unlock_irq+0x27/0x70 [ 27.329041] ? forget_original_parent.cold.20+0x5f/0xd5 [ 27.334426] forget_original_parent.cold.20+0x7b/0xd5 [ 27.339637] ? trace_hardirqs_on+0x10/0x10 [ 27.343903] ? kill_orphaned_pgrp+0x5b0/0x5b0 [ 27.348451] ? perf_lock_task_context+0x990/0x990 [ 27.353329] ? perf_event_exit_task+0xc04/0x1050 [ 27.358105] ? graph_lock+0x170/0x170 [ 27.361943] ? __ia32_sys_perf_event_open+0x140/0x140 [ 27.367149] ? kasan_check_read+0x11/0x20 [ 27.371318] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.376888] ? refcount_add_not_zero+0x330/0x330 [ 27.381665] ? fpu__drop+0x12f/0x750 [ 27.385401] ? lock_acquire+0x1e4/0x540 [ 27.389391] ? do_exit+0x1b6d/0x2750 [ 27.393123] ? lock_release+0xa30/0xa30 [ 27.397115] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 27.402669] ? task_work_run+0x22f/0x2a0 [ 27.406762] ? kasan_check_write+0x14/0x20 [ 27.411015] ? do_raw_write_lock+0xbd/0x1b0 [ 27.415383] do_exit+0x1b78/0x2750 [ 27.418945] ? lock_downgrade+0x8f0/0x8f0 [ 27.423110] ? mm_update_next_owner+0x9a0/0x9a0 [ 27.427795] ? print_usage_bug+0xc0/0xc0 [ 27.431873] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 27.436473] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 27.441624] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.446691] ? trace_hardirqs_on+0xd/0x10 [ 27.450891] ? remove_wait_queue+0x1a6/0x360 [ 27.455321] ? __lock_acquire+0x7fc/0x5020 [ 27.459585] ? print_usage_bug+0xc0/0xc0 [ 27.463664] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 27.469220] ? fput+0x130/0x1a0 [ 27.472515] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 27.477553] ? trace_hardirqs_on+0x10/0x10 [ 27.481803] ? print_usage_bug+0xc0/0xc0 [ 27.485885] ? __lock_acquire+0x7fc/0x5020 [ 27.490147] ? __lock_acquire+0x7fc/0x5020 [ 27.494397] ? trace_hardirqs_on+0x10/0x10 [ 27.498645] ? select_estimate_accuracy+0x4b0/0x4b0 [ 27.503689] ? graph_lock+0x170/0x170 [ 27.507513] ? trace_hardirqs_on+0x10/0x10 [ 27.511777] ? memset+0x31/0x40 [ 27.515079] ? find_held_lock+0x36/0x1c0 [ 27.519191] ? lock_downgrade+0x8f0/0x8f0 [ 27.523368] do_group_exit+0x177/0x440 [ 27.527302] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 27.531903] ? __ia32_sys_exit+0x50/0x50 [ 27.535983] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.540486] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.545517] get_signal+0x88e/0x1970 [ 27.549260] ? ptrace_notify+0x130/0x130 [ 27.553344] ? lock_downgrade+0x8f0/0x8f0 [ 27.557531] ? lock_release+0xa30/0xa30 [ 27.561520] ? check_same_owner+0x340/0x340 [ 27.565862] ? ktime_get_ts64+0x3a5/0x530 [ 27.570042] do_signal+0x9c/0x21c0 [ 27.573606] ? kasan_check_read+0x11/0x20 [ 27.577776] ? _copy_to_user+0xc8/0x110 [ 27.581760] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 27.587315] ? poll_select_copy_remaining+0x433/0x6a0 [ 27.592524] ? setup_sigcontext+0x7d0/0x7d0 [ 27.596856] ? poll_freewait+0x260/0x260 [ 27.600924] ? __do_sys_fstat+0x100/0x100 [ 27.605095] ? poll_select_set_timeout+0x156/0x240 [ 27.610046] ? do_restart_poll+0x2e0/0x2e0 [ 27.614318] ? exit_to_usermode_loop+0x8c/0x370 [ 27.619009] exit_to_usermode_loop+0x2e0/0x370 [ 27.623622] ? syscall_slow_exit_work+0x500/0x500 [ 27.628466] do_syscall_64+0x6be/0x820 [ 27.632359] ? syscall_return_slowpath+0x5e0/0x5e0 [ 27.637289] ? syscall_return_slowpath+0x31d/0x5e0 [ 27.642230] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 27.647592] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.652476] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 27.657709] RIP: 0033:0x7fb4053a6dd3 [ 27.661414] Code: Bad RIP value. [ 27.664776] RSP: 002b:00007ffc0133ab18 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [ 27.672471] RAX: fffffffffffffdfe RBX: 00007ffc0133acc0 RCX: 00007fb4053a6dd3 [ 27.679738] RDX: 0000000000000000 RSI: 00007ffc0133ae70 RDI: 000000000000000b [ 27.687017] RBP: 00007ffc0133ae70 R08: 00007ffc0133aef0 R09: 0000000000000001 [ 27.694296] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 27.701559] R13: 00007ffc0133b250 R14: 0000000000000000 R15: 0000000000000000 [ 27.709266] Dumping ftrace buffer: [ 27.712904] (ftrace buffer empty) [ 27.716624] Kernel Offset: disabled [ 27.720243] Rebooting in 86400 seconds..