[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 16.013306] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 16.491379] random: sshd: uninitialized urandom read (32 bytes read) [ 16.856153] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.562581] random: sshd: uninitialized urandom read (32 bytes read) [ 40.184785] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. [ 45.587266] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program [ 45.671379] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 60.587016] kasan: CONFIG_KASAN_INLINE enabled [ 60.591648] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 60.599060] general protection fault: 0000 [#1] SMP KASAN [ 60.604602] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 60.612479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.621855] RIP: 0010:debug_object_deactivate+0x191/0x450 [ 60.627385] Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89 [ 60.646643] RSP: 0018:ffff8801dae07a90 EFLAGS: 00010006 [ 60.652030] RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81603e61 [ 60.659303] RDX: ffff8801dae26560 RSI: 000000000836b159 RDI: 0000000041b58acb [ 60.666576] RBP: ffff8801dae07b50 R08: fffffbfff1576866 R09: fffffbfff1576865 [ 60.673868] R10: fffffbfff1576865 R11: ffffffff8abb432b R12: 1ffff1003b5c0f54 [ 60.681140] R13: ffffffff8abb4328 R14: ffffffff88fa0fe0 R15: 0000000000000013 [ 60.689367] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 60.697590] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.697601] PANIC: double fault, error_code: 0x0 [ 60.703474] CR2: 00007ffc2a832b2c CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 60.708231] CPU: 1 PID: 11673 Comm: syz-executor149 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 60.715471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.724016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.731262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.740606] RIP: 0010:__lock_acquire+0x2e/0x5020 [ 60.747836] Call Trace: [ 60.752560] Code: 41 57 [ 60.755122] [ 60.755141] ? debug_stats_show+0x100/0x100 [ 60.757778] 41 [ 60.759918] ? kasan_check_write+0x14/0x20 [ 60.764205] 89 [ 60.766077] ? do_raw_spin_lock+0xc1/0x200 [ 60.770319] cf [ 60.772196] __hrtimer_run_queues+0x2bf/0x10c0 [ 60.776396] 41 [ 60.778275] ? hrtimer_start_range_ns+0xd20/0xd20 [ 60.782816] 56 41 [ 60.784699] ? pvclock_read_flags+0x160/0x160 [ 60.789504] 55 [ 60.791639] ? kvm_clock_read+0x25/0x30 [ 60.796124] 49 89 [ 60.798002] ? kvm_clock_read+0x25/0x30 [ 60.801943] fd [ 60.804077] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 60.808016] 41 54 [ 60.809909] ? ktime_get_update_offsets_now+0x3db/0x5d0 [ 60.814886] 45 [ 60.817020] ? do_timer+0x50/0x50 [ 60.822350] 89 [ 60.824223] ? kasan_check_read+0x11/0x20 [ 60.827639] cc [ 60.829509] ? rcu_nmi_exit+0xe0/0x2d0 [ 60.833620] 53 [ 60.835490] ? do_raw_spin_lock+0xc1/0x200 [ 60.839336] 65 4c [ 60.841215] hrtimer_interrupt+0x2f3/0x750 [ 60.845412] 8b [ 60.847546] smp_apic_timer_interrupt+0x165/0x730 [ 60.851741] 34 [ 60.853616] ? smp_call_function_single_interrupt+0x660/0x660 [ 60.858421] 25 [ 60.860291] ? _raw_spin_unlock+0x22/0x30 [ 60.866140] 40 [ 60.868024] ? handle_edge_irq+0x330/0x870 [ 60.872129] ee 01 [ 60.874009] ? task_prio+0x50/0x50 [ 60.878205] 00 [ 60.880341] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.883843] 48 [ 60.885713] apic_timer_interrupt+0xf/0x20 [ 60.890519] 83 [ 60.892383] [ 60.896584] e4 f0 [ 60.898464] RIP: 0010:_raw_spin_unlock_irq+0x56/0x70 [ 60.900668] 48 [ 60.902804] Code: [ 60.907874] 81 ec [ 60.909744] f1 [ 60.911867] 60 [ 60.914001] 88 [ 60.915867] 03 [ 60.917731] 48 [ 60.919594] 00 [ 60.921468] b8 [ 60.923333] 00 [ 60.925196] 00 [ 60.927058] 48 [ 60.928922] 00 [ 60.930800] 8b [ 60.932662] 00 [ 60.934611] 45 [ 60.936476] 00 [ 60.938338] 10 [ 60.940216] 00 [ 60.942081] <89> [ 60.943947] fc [ 60.945820] 94 [ 60.947856] ff [ 60.949718] 24 [ 60.951581] df [ 60.953456] 80 [ 60.955319] 48 [ 60.957183] 00 [ 60.959045] 89 [ 60.960908] 00 [ 60.962769] fa [ 60.964632] 00 [ 60.966495] 48 [ 60.968367] 48 [ 60.970232] c1 [ 60.972089] ba 00 [ 60.973967] ea [ 60.975827] 00 00 [ 60.977976] 03 [ 60.979838] 00 [ 60.981959] 80 [ 60.983823] 00 [ 60.985685] 3c [ 60.987545] fc ff [ 60.989424] 02 [ 60.991282] df 48 [ 60.993422] 00 [ 60.995297] 89 [ 60.997420] 75 [ 60.999283] 84 [ 61.001233] 1d [ 61.003094] 24 [ 61.004958] 48 [ 61.006820] 98 [ 61.008685] 83 [ 61.012422] 3d [ 61.014288] RSP: 0018:ffff8801b55b9e30 EFLAGS: 00010086 [ 61.014296] 8b [ 61.021497] 91 [ 61.023358] RAX: 0000000000000000 RBX: 1ffff10036ab7443 RCX: 0000000000000002 [ 61.023365] 54 [ 61.025232] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92920 [ 61.032472] 01 [ 61.034339] RBP: ffff8801b55ba1c0 R08: 0000000000000000 R09: 0000000000000000 [ 61.041581] 00 [ 61.043450] R10: ffff8801c036f1b8 R11: ffffffff88e1272b R12: 0000000000000000 [ 61.050694] 74 [ 61.052560] R13: ffffffff88f92920 R14: ffff8801c721c1c0 R15: 0000000000000002 [ 61.059806] 11 [ 61.061682] FS: 00007f2abb4e4700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 61.068918] fb 66 [ 61.070797] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.079774] 0f [ 61.081903] CR2: ffff8801b55b9e28 CR3: 00000001c3db7000 CR4: 00000000001406e0 [ 61.087759] 1f 44 [ 61.089636] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.096888] 00 [ 61.099015] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.106258] 00 [ 61.108137] Call Trace: [ 61.115388] <65> [ 61.117253] Kernel panic - not syncing: Machine halted. [ 61.119824] ff 0d d3 cc 64 78 5b 5d c3 0f 0b e8 99 c7 1d fa eb dc 0f 1f 80 [ 61.134336] RSP: 0018:ffff8801d9ab7b20 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 61.142037] RAX: dffffc0000000000 RBX: ffff8801dae2c980 RCX: ffffffff81604207 [ 61.149297] RDX: 1ffffffff11e364f RSI: 0000000000000004 RDI: ffffffff88f1b278 [ 61.156551] RBP: ffff8801d9ab7b28 R08: ffffed003b5c5931 R09: ffffed003b5c5930 [ 61.163801] R10: ffffed003b5c5930 R11: ffff8801dae2c983 R12: ffff8801d9aa8240 [ 61.171062] R13: ffff8801cdfb6680 R14: ffff8801c7b6a200 R15: dffffc0000000000 [ 61.178341] ? do_raw_spin_unlock+0xa7/0x2f0 [ 61.182738] finish_task_switch+0x1d3/0x870 [ 61.187041] ? finish_task_switch+0x18a/0x870 [ 61.191520] ? preempt_notifier_register+0x200/0x200 [ 61.196608] ? lock_repin_lock+0x430/0x430 [ 61.200829] ? kasan_check_write+0x14/0x20 [ 61.205050] __schedule+0x884/0x1ed0 [ 61.208919] ? __local_bh_enable+0xef/0x130 [ 61.213229] ? __sched_text_start+0x8/0x8 [ 61.217367] ? __irqentry_text_end+0x1f97a8/0x1f97a8 [ 61.222455] ? schedule+0xfb/0x450 [ 61.225978] ? retint_kernel+0x10/0x10 [ 61.229849] ? check_same_owner+0x340/0x340 [ 61.234162] ? takeover_tasklets+0xa60/0xa60 [ 61.238553] preempt_schedule_common+0x22/0x60 [ 61.243125] ? takeover_tasklets+0xa60/0xa60 [ 61.247517] _cond_resched+0x1d/0x30 [ 61.251216] run_ksoftirqd+0xd2/0x100 [ 61.255000] smpboot_thread_fn+0x417/0x870 [ 61.259218] ? sort_range+0x30/0x30 [ 61.262827] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 61.268355] ? __kthread_parkme+0x106/0x1b0 [ 61.272662] kthread+0x345/0x410 [ 61.276009] ? sort_range+0x30/0x30 [ 61.279616] ? kthread_bind+0x40/0x40 [ 61.283404] ret_from_fork+0x3a/0x50 [ 61.287096] Modules linked in: [ 61.290282] Dumping ftrace buffer: [ 61.293801] (ftrace buffer empty) [ 61.297497] ---[ end trace 357c395f94328fb1 ]--- [ 61.302236] RIP: 0010:debug_object_deactivate+0x191/0x450 [ 61.307747] Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89 [ 61.326922] RSP: 0018:ffff8801dae07a90 EFLAGS: 00010006 [ 61.332264] RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81603e61 [ 61.339518] RDX: ffff8801dae26560 RSI: 000000000836b159 RDI: 0000000041b58acb [ 61.346790] RBP: ffff8801dae07b50 R08: fffffbfff1576866 R09: fffffbfff1576865 [ 61.354042] R10: fffffbfff1576865 R11: ffffffff8abb432b R12: 1ffff1003b5c0f54 [ 61.361293] R13: ffffffff8abb4328 R14: ffffffff88fa0fe0 R15: 0000000000000013 [ 61.368547] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 61.376756] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.382620] CR2: 00007ffc2a832b2c CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 61.389871] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.397121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.181248] Shutting down cpus with NMI [ 62.185710] Dumping ftrace buffer: [ 62.189231] (ftrace buffer empty) [ 62.192917] Kernel Offset: disabled [ 62.196522] Rebooting in 86400 seconds..