[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 53.273245][ T24] audit: type=1800 audit(1562015089.783:25): pid=8230 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 53.317030][ T24] audit: type=1800 audit(1562015089.783:26): pid=8230 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 53.352186][ T24] audit: type=1800 audit(1562015089.793:27): pid=8230 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.0.88' (ECDSA) to the list of known hosts.
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syzkaller login: [ 73.968217][ C0] WARNING: CPU: 0 PID: 8390 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0
[ 73.978120][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 73.984749][ C0] CPU: 0 PID: 8390 Comm: syz-executor972 Not tainted 5.2.0-rc7 #46
[ 73.992635][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 74.002683][ C0] Call Trace:
[ 74.005947][ C0]
[ 74.008799][ C0] dump_stack+0x172/0x1f0
[ 74.013263][ C0] ? perf_group_attach+0x380/0x4d0
[ 74.018368][ C0] panic+0x2cb/0x744
[ 74.022243][ C0] ? __warn_printk+0xf3/0xf3
[ 74.026819][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.031930][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 74.039556][ C0] ? __warn.cold+0x5/0x4d
[ 74.043871][ C0] ? __warn+0xe8/0x1d0
[ 74.048100][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.053479][ C0] __warn.cold+0x20/0x4d
[ 74.057715][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.062828][ C0] report_bug+0x263/0x2b0
[ 74.067150][ C0] do_error_trap+0x11b/0x200
[ 74.071738][ C0] do_invalid_op+0x37/0x50
[ 74.076287][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.081397][ C0] invalid_op+0x14/0x20
[ 74.085539][ C0] RIP: 0010:perf_group_attach+0x3fd/0x4d0
[ 74.091239][ 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 c3 39 eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 74 c6 80 89 e8 70 e7 23 00 e9 5b fc
[ 74.110935][ C0] RSP: 0018:ffff8880ae809ea8 EFLAGS: 00010006
[ 74.116992][ C0] RAX: ffff8880a80be540 RBX: ffff88809ec1b280 RCX: ffffffff81858658
[ 74.124960][ C0] RDX: 0000000000010000 RSI: ffffffff8185897d RDI: ffff88809ec1b498
[ 74.133041][ C0] RBP: ffff8880ae809ed8 R08: ffff8880a80be540 R09: ffffffff89bec008
[ 74.141098][ C0] R10: ffffffff89bec010 R11: 0000000000000001 R12: ffff88809e89c940
[ 74.149060][ C0] R13: ffffe8ffffc14fc0 R14: 0000000000000000 R15: ffff8880ae83a5c8
[ 74.157206][ C0] ? perf_group_attach+0xd8/0x4d0
[ 74.162210][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.167416][ C0] ? perf_group_attach+0x3fd/0x4d0
[ 74.172518][ C0] __perf_install_in_context+0x4b5/0x960
[ 74.178128][ C0] ? kvm_clock_read+0x18/0x30
[ 74.182982][ C0] ? __perf_event_enable+0x910/0x910
[ 74.188403][ C0] remote_function+0x129/0x1a0
[ 74.193159][ C0] ? debug_smp_processor_id+0x3c/0x280
[ 74.198614][ C0] flush_smp_call_function_queue+0x147/0x4f0
[ 74.204591][ C0] ? perf_duration_warn+0x40/0x40
[ 74.209618][ C0] generic_smp_call_function_single_interrupt+0x13/0x2b
[ 74.216546][ C0] smp_call_function_single_interrupt+0x9d/0x450
[ 74.223018][ C0] call_function_single_interrupt+0xf/0x20
[ 74.228831][ C0]
[ 74.231882][ C0] RIP: 0010:_raw_spin_unlock_irq+0x54/0x90
[ 74.238271][ C0] Code: c0 40 74 b2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 85 1c 95 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 22 36 30 fa 65 8b 05 b3 a5 e4 78 85 c0 74 06 41
[ 74.258132][ C0] RSP: 0018:ffff8880a7c6fb20 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
[ 74.266638][ C0] RAX: 1ffffffff1164e88 RBX: ffff8880a80be540 RCX: 0000000000000000
[ 74.274727][ C0] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a80bedbc
[ 74.282800][ C0] RBP: ffff8880a7c6fb28 R08: ffff8880a80be540 R09: 0000000000000000
[ 74.290755][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae8354c0
[ 74.298879][ C0] R13: ffff8880a98b2280 R14: ffff88808bffb100 R15: 0000000000000402
[ 74.306957][ C0] finish_task_switch+0x146/0x730
[ 74.311977][ C0] ? finish_task_switch+0x118/0x730
[ 74.317166][ C0] __schedule+0x7d3/0x1560
[ 74.321582][ C0] ? __sched_text_start+0x8/0x8
[ 74.326431][ C0] ? __hrtimer_get_remaining+0x1a0/0x1a0
[ 74.332059][ C0] ? lockdep_hardirqs_on+0x418/0x5d0
[ 74.337330][ C0] schedule+0xa8/0x260
[ 74.341382][ C0] do_nanosleep+0x201/0x690
[ 74.345968][ C0] ? __debug_object_init+0x190/0xc30
[ 74.351277][ C0] ? schedule_timeout_idle+0x90/0x90
[ 74.356551][ C0] ? memset+0x32/0x40
[ 74.360526][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 74.366877][ C0] ? __hrtimer_init+0xe1/0x250
[ 74.371638][ C0] hrtimer_nanosleep+0x2a6/0x570
[ 74.376602][ C0] ? nanosleep_copyout+0x110/0x110
[ 74.381702][ C0] ? clock_was_set_work+0x30/0x30
[ 74.386727][ C0] __x64_sys_nanosleep+0x1a6/0x220
[ 74.391818][ C0] ? hrtimer_nanosleep+0x570/0x570
[ 74.397172][ C0] ? do_syscall_64+0x26/0x680
[ 74.401835][ C0] ? lockdep_hardirqs_on+0x418/0x5d0
[ 74.407116][ C0] ? trace_hardirqs_on+0x67/0x220
[ 74.412239][ C0] do_syscall_64+0xfd/0x680
[ 74.416749][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 74.422765][ C0] RIP: 0033:0x4471f0
[ 74.426654][ C0] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 01 ce 29 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 64 1f fc ff c3 48 83 ec 08 e8 9a 42 00 00
[ 74.446556][ C0] RSP: 002b:00007ffcf39ce828 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
[ 74.455181][ C0] RAX: ffffffffffffffda RBX: 00007ffcf39ce860 RCX: 00000000004471f0
[ 74.463166][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffcf39ce830
[ 74.471399][ C0] RBP: 0000000000002538 R08: 00000000000020c6 R09: 0000555556449940
[ 74.479468][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000011fd4
[ 74.487641][ C0] R13: 0000000000409670 R14: 0000000000000000 R15: 0000000000000000
[ 74.497289][ C0] Kernel Offset: disabled
[ 74.501679][ C0] Rebooting in 86400 seconds..