[ 62.561101][ T24] audit: type=1800 audit(1561021782.657:24): pid=8712 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 63.214346][ T24] audit: type=1800 audit(1561021783.417:25): pid=8712 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 63.257845][ T24] audit: type=1800 audit(1561021783.427:26): pid=8712 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.245' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 74.678821][ C0] WARNING: CPU: 0 PID: 0 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0
[ 74.688376][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 74.694981][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.2.0-rc5+ #38
[ 74.702181][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 74.712269][ C0] Call Trace:
[ 74.715565][ C0]
[ 74.718462][ C0] dump_stack+0x172/0x1f0
[ 74.722802][ C0] ? perf_group_attach+0x370/0x4d0
[ 74.727944][ C0] panic+0x2cb/0x744
[ 74.731938][ C0] ? __warn_printk+0xf3/0xf3
[ 74.736580][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.741715][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 74.747973][ C0] ? __warn.cold+0x5/0x4d
[ 74.752309][ C0] ? __warn+0xe8/0x1d0
[ 74.756386][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.761509][ C0] __warn.cold+0x20/0x4d
[ 74.765762][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.771144][ C0] report_bug+0x263/0x2b0
[ 74.775531][ C0] do_error_trap+0x11b/0x200
[ 74.780163][ C0] do_invalid_op+0x37/0x50
[ 74.784583][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.789708][ C0] invalid_op+0x14/0x20
[ 74.793875][ C0] RIP: 0010:perf_group_attach+0x3fd/0x4d0
[ 74.799605][ C0] Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 20 ff ff ff e8 a3 39 eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 f4 c3 80 89 e8 00 e6 23 00 e9 5b fc
[ 74.819305][ C0] RSP: 0018:ffff8880ae809ea8 EFLAGS: 00010006
[ 74.825390][ C0] RAX: ffffffff88a7a100 RBX: ffff8880a471d640 RCX: ffffffff81858468
[ 74.833470][ C0] RDX: 0000000000010000 RSI: ffffffff8185878d RDI: ffff8880a471d858
[ 74.841460][ C0] RBP: ffff8880ae809ed8 R08: ffffffff88a7a100 R09: ffffed1015d013cb
[ 74.849439][ C0] R10: ffffed1015d013ca R11: 0000000000000003 R12: ffff8880a4140500
[ 74.857431][ C0] R13: ffffe8ffffc14fc0 R14: 0000000000000000 R15: ffff8880ae83a5c8
[ 74.865433][ C0] ? perf_group_attach+0xd8/0x4d0
[ 74.870460][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.875589][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.880753][ C0] __perf_install_in_context+0x4b5/0x960
[ 74.886397][ C0] ? kvm_clock_read+0x18/0x30
[ 74.891084][ C0] ? __perf_event_enable+0x910/0x910
[ 74.896371][ C0] remote_function+0x129/0x1a0
[ 74.901180][ C0] ? debug_smp_processor_id+0x3c/0x280
[ 74.906658][ C0] flush_smp_call_function_queue+0x147/0x4f0
[ 74.912658][ C0] ? perf_duration_warn+0x40/0x40
[ 74.917688][ C0] generic_smp_call_function_single_interrupt+0x13/0x2b
[ 74.924670][ C0] smp_call_function_single_interrupt+0x9d/0x450
[ 74.931012][ C0] call_function_single_interrupt+0xf/0x20
[ 74.936845][ C0]
[ 74.939792][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 74.945194][ C0] Code: ff ff 48 89 df e8 02 5e 8c fa eb 82 e9 07 00 00 00 0f 00 2d 14 e0 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 04 e0 4a 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 3e c1 41 fa e8 19
[ 74.964805][ C0] RSP: 0018:ffffffff88a07cf8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04
[ 74.973443][ C0] RAX: 1ffffffff1164e81 RBX: ffffffff88a7a100 RCX: 0000000000000000
[ 74.981513][ C0] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffffffff88a7a97c
[ 74.989509][ C0] RBP: ffffffff88a07d28 R08: ffffffff88a7a100 R09: 0000000000000000
[ 74.997489][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 75.005501][ C0] R13: ffffffff88b273f8 R14: 0000000000000000 R15: 0000000000000000
[ 75.013515][ C0] ? default_idle+0x4e/0x320
[ 75.018126][ C0] arch_cpu_idle+0xa/0x10
[ 75.022476][ C0] default_idle_call+0x36/0x90
[ 75.027522][ C0] do_idle+0x377/0x560
[ 75.031619][ C0] ? arch_cpu_idle_exit+0x80/0x80
[ 75.036659][ C0] ? trace_hardirqs_on+0x67/0x220
[ 75.041704][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 75.047959][ C0] ? debug_smp_processor_id+0x3c/0x280
[ 75.053443][ C0] cpu_startup_entry+0x1b/0x20
[ 75.058294][ C0] rest_init+0x245/0x37b
[ 75.062597][ C0] arch_call_rest_init+0xe/0x1b
[ 75.067457][ C0] start_kernel+0x854/0x893
[ 75.071971][ C0] ? mem_encrypt_init+0xb/0xb
[ 75.076661][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 75.082917][ C0] ? x86_family+0x41/0x50
[ 75.087260][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 75.093524][ C0] x86_64_start_reservations+0x29/0x2b
[ 75.099018][ C0] x86_64_start_kernel+0x77/0x7b
[ 75.103978][ C0] secondary_startup_64+0xa4/0xb0
[ 75.110595][ C0] Kernel Offset: disabled
[ 75.114996][ C0] Rebooting in 86400 seconds..