[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 23.637876] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 24.077812] random: sshd: uninitialized urandom read (32 bytes read) [ 24.442142] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.994196] random: sshd: uninitialized urandom read (32 bytes read) [ 41.072269] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.2' (ECDSA) to the list of known hosts. [ 46.824339] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 56.244702] ------------[ cut here ]------------ [ 56.249652] AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): [ 56.249907] WARNING: CPU: 0 PID: 2035 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b5/0x2f0 [ 56.266006] Kernel panic - not syncing: panic_on_warn set ... [ 56.266006] [ 56.273407] CPU: 0 PID: 2035 Comm: kworker/0:2 Not tainted 4.19.0-rc1+ #216 [ 56.280498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.289858] Workqueue: events_power_efficient gc_worker [ 56.295222] Call Trace: [ 56.297815] dump_stack+0x1c9/0x2b4 [ 56.301449] ? dump_stack_print_info.cold.2+0x52/0x52 [ 56.306654] panic+0x238/0x4e7 [ 56.309864] ? add_taint.cold.5+0x16/0x16 [ 56.314018] ? __warn.cold.8+0x148/0x1ba [ 56.318077] ? __warn.cold.8+0x117/0x1ba [ 56.322145] ? apparmor_secid_to_secctx+0x2b5/0x2f0 [ 56.327160] __warn.cold.8+0x163/0x1ba [ 56.331055] ? apparmor_secid_to_secctx+0x2b5/0x2f0 [ 56.336076] report_bug+0x252/0x2d0 [ 56.339712] do_error_trap+0x1fc/0x4d0 [ 56.343602] ? math_error+0x3e0/0x3e0 [ 56.347436] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.352282] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 56.357312] ? vprintk_func+0x81/0x117 [ 56.361202] ? printk+0xa7/0xcf [ 56.364490] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.369341] do_invalid_op+0x1b/0x20 [ 56.373057] invalid_op+0x14/0x20 [ 56.376531] RIP: 0010:apparmor_secid_to_secctx+0x2b5/0x2f0 [ 56.382155] Code: c7 c7 c0 66 58 87 e8 0a 6c 0f fe 0f 0b e9 6c fe ff ff e8 de a8 44 fe 48 c7 c6 00 68 58 87 48 c7 c7 20 66 58 87 e8 eb 6b 0f fe <0f> 0b e9 3f fe ff ff 48 89 df e8 9c a6 83 fe e9 ed fe ff ff bb f4 [ 56.401054] RSP: 0018:ffff8801ce3f7028 EFLAGS: 00010282 [ 56.406431] RAX: 0000000000000000 RBX: ffff8801ce3f71e8 RCX: 0000000000000000 [ 56.413716] RDX: 0000000000000000 RSI: ffffffff8163ac01 RDI: 0000000000000001 [ 56.420986] RBP: ffff8801ce3f7048 R08: ffff8801ce3ec540 R09: ffffed003b603eca [ 56.428257] R10: ffffed003b603eca R11: ffff8801db01f657 R12: 0000000000000001 [ 56.435525] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801ce3f71e8 [ 56.442812] ? vprintk_func+0x81/0x117 [ 56.446715] ? apparmor_secid_to_secctx+0x2b5/0x2f0 [ 56.451736] security_secid_to_secctx+0x63/0xc0 [ 56.456416] ctnetlink_conntrack_event+0x303/0x1470 [ 56.461447] ? ctnetlink_glue_build+0xc40/0xc40 [ 56.466124] ? lock_acquire+0x1e4/0x4f0 [ 56.470101] ? nf_conntrack_eventmask_report+0xaf/0x930 [ 56.475473] ? __lock_is_held+0xb5/0x140 [ 56.479581] nf_conntrack_eventmask_report+0x55f/0x930 [ 56.484883] ? nf_ct_expect_register_notifier+0x250/0x250 [ 56.490422] ? graph_lock+0x170/0x170 [ 56.494239] ? print_usage_bug+0xc0/0xc0 [ 56.498313] nf_ct_delete+0x33c/0x5d0 [ 56.502144] ? find_held_lock+0x36/0x1c0 [ 56.506237] ? nf_ct_delete_from_lists+0x6f0/0x6f0 [ 56.511173] ? mark_held_locks+0xc9/0x160 [ 56.515356] nf_ct_gc_expired+0x3e3/0x4a0 [ 56.519537] ? destroy_conntrack+0x350/0x350 [ 56.523949] ? rcu_is_watching+0x8c/0x150 [ 56.528124] ? process_one_work+0xc73/0x1aa0 [ 56.532533] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 56.537647] gc_worker+0xd99/0x1190 [ 56.541306] ? init_conntrack+0x1380/0x1380 [ 56.545657] ? find_held_lock+0x36/0x1c0 [ 56.549745] ? graph_lock+0x170/0x170 [ 56.553546] ? lock_acquire+0x1e4/0x4f0 [ 56.557522] ? process_one_work+0xb9b/0x1aa0 [ 56.561945] ? _raw_spin_unlock_irq+0x27/0x70 [ 56.566450] ? __lock_is_held+0xb5/0x140 [ 56.570527] process_one_work+0xc73/0x1aa0 [ 56.574774] ? mark_held_locks+0x160/0x160 [ 56.579025] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 56.583699] ? __switch_to_asm+0x34/0x70 [ 56.587765] ? __switch_to_asm+0x40/0x70 [ 56.591828] ? __switch_to_asm+0x34/0x70 [ 56.595888] ? __switch_to_asm+0x34/0x70 [ 56.599963] ? __switch_to_asm+0x40/0x70 [ 56.604022] ? __switch_to_asm+0x34/0x70 [ 56.608096] ? __switch_to_asm+0x40/0x70 [ 56.612193] ? __switch_to_asm+0x34/0x70 [ 56.616270] ? __sched_text_start+0x8/0x8 [ 56.620433] ? lock_downgrade+0x8f0/0x8f0 [ 56.624596] ? graph_lock+0x170/0x170 [ 56.628414] ? graph_lock+0x170/0x170 [ 56.632239] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 56.637030] ? lockdep_hardirqs_on+0x421/0x5c0 [ 56.641626] ? retint_kernel+0x10/0x10 [ 56.645547] ? lock_acquire+0x1e4/0x4f0 [ 56.649525] ? worker_thread+0x3dc/0x13c0 [ 56.653693] ? lock_release+0x9f0/0x9f0 [ 56.657686] ? trace_hardirqs_off+0xb8/0x2b0 [ 56.662123] ? kasan_check_read+0x11/0x20 [ 56.666272] ? worker_thread+0x3dc/0x13c0 [ 56.670422] ? trace_hardirqs_on+0x2c0/0x2c0 [ 56.674833] ? kasan_check_write+0x14/0x20 [ 56.679069] ? do_raw_spin_lock+0xc1/0x200 [ 56.683311] worker_thread+0x189/0x13c0 [ 56.687282] ? __switch_to_asm+0x34/0x70 [ 56.691346] ? __switch_to_asm+0x34/0x70 [ 56.695406] ? __switch_to_asm+0x40/0x70 [ 56.699473] ? process_one_work+0x1aa0/0x1aa0 [ 56.703987] ? graph_lock+0x170/0x170 [ 56.707787] ? graph_lock+0x170/0x170 [ 56.711589] ? find_held_lock+0x36/0x1c0 [ 56.715668] ? find_held_lock+0x36/0x1c0 [ 56.719746] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 56.724866] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 56.729971] ? lockdep_hardirqs_on+0x421/0x5c0 [ 56.734555] ? trace_hardirqs_on+0xbd/0x2c0 [ 56.738875] ? kasan_check_read+0x11/0x20 [ 56.743025] ? __kthread_parkme+0xd7/0x1b0 [ 56.747269] ? kasan_check_write+0x14/0x20 [ 56.751507] ? __kthread_parkme+0x58/0x1b0 [ 56.755754] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.761290] ? __kthread_parkme+0x106/0x1b0 [ 56.765614] kthread+0x35a/0x420 [ 56.768983] ? process_one_work+0x1aa0/0x1aa0 [ 56.773480] ? kthread_bind+0x40/0x40 [ 56.777314] ret_from_fork+0x3a/0x50 [ 56.781489] Dumping ftrace buffer: [ 56.785095] (ftrace buffer empty) [ 56.788791] Kernel Offset: disabled [ 56.792402] Rebooting in 86400 seconds..