[info] Using makefile-style concurrent boot in runlevel 2. [ 26.464766] audit: type=1800 audit(1543852719.304:21): pid=5869 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 34.988558] sshd (6009) used greatest stack depth: 15744 bytes left Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 135.839339] WARNING: CPU: 0 PID: 10290 at kernel/events/core.c:1833 perf_group_attach+0x4c1/0x5a0 [ 135.848589] Kernel panic - not syncing: panic_on_warn set ... [ 135.854485] CPU: 0 PID: 10290 Comm: syz-executor235 Not tainted 4.20.0-rc3+ #95 [ 135.861903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.871228] Call Trace: [ 135.873811] dump_stack+0x244/0x39d [ 135.877466] ? dump_stack_print_info.cold.1+0x20/0x20 [ 135.882641] panic+0x2ad/0x55c [ 135.885835] ? add_taint.cold.5+0x16/0x16 [ 135.889969] ? __warn.cold.8+0x5/0x45 [ 135.893868] ? __warn+0xe8/0x1d0 [ 135.897213] ? perf_group_attach+0x4c1/0x5a0 [ 135.901597] __warn.cold.8+0x20/0x45 [ 135.905288] ? rcu_softirq_qs+0x20/0x20 [ 135.909255] ? perf_group_attach+0x4c1/0x5a0 [ 135.913647] report_bug+0x254/0x2d0 [ 135.917253] do_error_trap+0x11b/0x200 [ 135.921121] do_invalid_op+0x36/0x40 [ 135.924826] ? perf_group_attach+0x4c1/0x5a0 [ 135.929214] invalid_op+0x14/0x20 [ 135.932666] RIP: 0010:perf_group_attach+0x4c1/0x5a0 [ 135.937672] Code: 8d 7c 24 10 48 89 f8 48 c1 e8 03 42 80 3c 30 00 75 51 4d 8b 64 24 10 49 83 ec 10 4c 39 e3 75 d2 e9 f8 fe ff ff e8 cf a6 e9 ff <0f> 0b e9 e0 fc ff ff e8 83 00 2d 00 e9 ea fb ff ff e8 79 00 2d 00 [ 135.956548] RSP: 0018:ffff8881b9a875f8 EFLAGS: 00010093 [ 135.961885] RAX: ffff8881bb2644c0 RBX: ffff8881bb267240 RCX: ffffffff8195e086 [ 135.969128] RDX: 0000000000000000 RSI: ffffffff8195e421 RDI: ffff8881bb7ecc18 [ 135.976407] RBP: ffff8881b9a87690 R08: ffff8881bb2644c0 R09: 0000000000000006 [ 135.983653] R10: fffffbfff14a7001 R11: 0000000000000001 R12: ffff8881bb7eca00 [ 135.990897] R13: 1ffff11037350ec1 R14: ffffe8ffffc12c98 R15: 0000000000000000 [ 135.998152] ? perf_group_attach+0x126/0x5a0 [ 136.002558] ? perf_group_attach+0x4c1/0x5a0 [ 136.006954] ? perf_group_attach+0x4c1/0x5a0 [ 136.011499] ? perf_mux_hrtimer_restart+0x270/0x270 [ 136.016497] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 136.022025] ? ctx_sched_out+0x169/0xa20 [ 136.026067] __perf_install_in_context+0x5bd/0xb70 [ 136.030975] ? __perf_event_enable+0x910/0x910 [ 136.035533] ? trace_hardirqs_off+0xb8/0x310 [ 136.039915] ? debug_mutex_wake_waiter+0x630/0x630 [ 136.044833] ? mutex_destroy+0x200/0x200 [ 136.048870] ? smp_call_function_single+0x25a/0x660 [ 136.053865] ? trace_hardirqs_on+0x310/0x310 [ 136.058251] ? __perf_event_enable+0x910/0x910 [ 136.062894] ? perf_duration_warn+0x40/0x40 [ 136.067219] remote_function+0x12b/0x1a0 [ 136.071264] generic_exec_single+0x379/0x5f0 [ 136.075653] ? smp_call_on_cpu+0x560/0x560 [ 136.080034] ? mutex_trylock+0x2b0/0x2b0 [ 136.084111] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 136.089661] ? check_preemption_disabled+0x48/0x280 [ 136.094656] smp_call_function_single+0x25a/0x660 [ 136.099485] ? perf_duration_warn+0x40/0x40 [ 136.103831] ? check_preemption_disabled+0x48/0x280 [ 136.108876] ? generic_exec_single+0x5f0/0x5f0 [ 136.113438] ? errseq_sample+0xe5/0x130 [ 136.117395] ? _copy_to_user+0x110/0x110 [ 136.121470] ? __lock_is_held+0xb5/0x140 [ 136.125515] perf_install_in_context+0x46c/0x510 [ 136.130267] ? list_add_event+0x1250/0x1250 [ 136.134567] ? __perf_event_enable+0x910/0x910 [ 136.139128] ? perf_pin_task_context+0x130/0x130 [ 136.143864] ? get_unused_fd_flags+0x122/0x1a0 [ 136.148441] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 136.154128] ? __perf_event_header_size.isra.38+0x15f/0x1b0 [ 136.159852] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 136.165369] __do_sys_perf_event_open+0x1fa5/0x3020 [ 136.170428] ? perf_event_set_output+0x650/0x650 [ 136.175193] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 136.180099] ? kasan_check_read+0x11/0x20 [ 136.184228] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 136.189485] ? rcu_softirq_qs+0x20/0x20 [ 136.193441] ? trace_hardirqs_off_caller+0x310/0x310 [ 136.198523] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 136.204075] ? up_read+0x225/0x2c0 [ 136.207611] ? __x64_sys_futex+0x47f/0x6a0 [ 136.211843] ? do_syscall_64+0x9a/0x820 [ 136.215809] ? do_syscall_64+0x9a/0x820 [ 136.219765] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 136.224328] ? trace_hardirqs_on+0xbd/0x310 [ 136.228628] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 136.233992] ? trace_hardirqs_off_caller+0x310/0x310 [ 136.239106] __x64_sys_perf_event_open+0xbe/0x150 [ 136.243945] do_syscall_64+0x1b9/0x820 [ 136.247864] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 136.253205] ? syscall_return_slowpath+0x5e0/0x5e0 [ 136.258122] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 136.262945] ? trace_hardirqs_on_caller+0x310/0x310 [ 136.267944] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 136.272976] ? prepare_exit_to_usermode+0x291/0x3b0 [ 136.277979] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 136.282804] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 136.287971] RIP: 0033:0x446619 [ 136.291142] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 136.310038] RSP: 002b:00007f148f898db8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 136.317723] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446619 [ 136.324970] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 136.332217] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 136.339473] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dbc2c [ 136.346726] R13: 00007ffddd09e46f R14: 00007f148f8999c0 R15: 00000000006dbc20 [ 136.354978] Kernel Offset: disabled [ 136.358650] Rebooting in 86400 seconds..