[ 62.881715][ T26] audit: type=1800 audit(1561019936.797:25): pid=8877 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.916818][ T26] audit: type=1800 audit(1561019936.797:26): pid=8877 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.966820][ T26] audit: type=1800 audit(1561019936.797:27): pid=8877 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[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 72.738338][ T9054] 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 [ 76.227751][ T9180] WARNING: CPU: 0 PID: 9180 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0 [ 76.237497][ T9180] Kernel panic - not syncing: panic_on_warn set ... [ 76.244076][ T9180] CPU: 0 PID: 9180 Comm: syz-executor192 Not tainted 5.2.0-rc5+ #26 [ 76.252051][ T9180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.262104][ T9180] Call Trace: [ 76.265435][ T9180] dump_stack+0x172/0x1f0 [ 76.269990][ T9180] ? perf_group_attach+0x3b0/0x4d0 [ 76.275285][ T9180] panic+0x2cb/0x744 [ 76.279183][ T9180] ? __warn_printk+0xf3/0xf3 [ 76.283765][ T9180] ? perf_group_attach+0x3fd/0x4d0 [ 76.288879][ T9180] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.295372][ T9180] ? __warn.cold+0x5/0x4d [ 76.299701][ T9180] ? __warn+0xe8/0x1d0 [ 76.303775][ T9180] ? perf_group_attach+0x3fd/0x4d0 [ 76.308969][ T9180] __warn.cold+0x20/0x4d [ 76.313212][ T9180] ? perf_group_attach+0x3fd/0x4d0 [ 76.318321][ T9180] report_bug+0x263/0x2b0 [ 76.322670][ T9180] do_error_trap+0x11b/0x200 [ 76.327358][ T9180] do_invalid_op+0x37/0x50 [ 76.331770][ T9180] ? perf_group_attach+0x3fd/0x4d0 [ 76.336888][ T9180] invalid_op+0x14/0x20 [ 76.341137][ T9180] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 76.346862][ T9180] 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 33 a7 ea ff <0f> 0b e9 55 fd ff ff 48 c7 c7 b4 13 a1 89 e8 00 e6 23 00 e9 5b fc [ 76.366815][ T9180] RSP: 0018:ffff8880a571fa90 EFLAGS: 00010093 [ 76.372913][ T9180] RAX: ffff888089502240 RBX: ffff88809f285540 RCX: ffffffff81861828 [ 76.380884][ T9180] RDX: 0000000000000000 RSI: ffffffff81861b4d RDI: ffff88809f285758 [ 76.388861][ T9180] RBP: ffff8880a571fac0 R08: ffff888089502240 R09: ffffed1014ae3f48 [ 76.396919][ T9180] R10: ffffed1014ae3f47 R11: 0000000000000003 R12: ffff8880a7e483c0 [ 76.404897][ T9180] R13: ffffe8ffffc15010 R14: 0000000000000000 R15: ffff8880ae83a5c8 [ 76.412910][ T9180] ? perf_group_attach+0xd8/0x4d0 [ 76.417949][ T9180] ? perf_group_attach+0x3fd/0x4d0 [ 76.423084][ T9180] __perf_install_in_context+0x4b5/0x960 [ 76.428724][ T9180] ? __perf_event_enable+0x910/0x910 [ 76.434013][ T9180] ? perf_duration_warn+0x40/0x40 [ 76.439040][ T9180] remote_function+0x129/0x1a0 [ 76.443899][ T9180] generic_exec_single+0x27c/0x4a0 [ 76.449015][ T9180] smp_call_function_single+0x12d/0x420 [ 76.454564][ T9180] ? _raw_spin_unlock+0x2d/0x50 [ 76.459414][ T9180] ? perf_duration_warn+0x40/0x40 [ 76.464439][ T9180] ? generic_exec_single+0x4a0/0x4a0 [ 76.469727][ T9180] ? __do_sys_perf_event_open+0x1a41/0x24d0 [ 76.475638][ T9180] perf_install_in_context+0x369/0x3d0 [ 76.481100][ T9180] ? list_add_event+0xec0/0xec0 [ 76.485948][ T9180] ? __perf_event_enable+0x910/0x910 [ 76.491247][ T9180] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.497492][ T9180] __do_sys_perf_event_open+0x183e/0x24d0 [ 76.503221][ T9180] ? perf_event_set_output+0x4e0/0x4e0 [ 76.508718][ T9180] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.514263][ T9180] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.519725][ T9180] ? do_syscall_64+0x26/0x680 [ 76.524504][ T9180] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.530568][ T9180] ? do_syscall_64+0x26/0x680 [ 76.535276][ T9180] __x64_sys_perf_event_open+0xbe/0x150 [ 76.540855][ T9180] do_syscall_64+0xfd/0x680 [ 76.545541][ T9180] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.551439][ T9180] RIP: 0033:0x447399 [ 76.555334][ T9180] Code: e8 4c bb 02 00 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 76.575031][ T9180] RSP: 002b:00007f95a5ef7db8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 76.583607][ T9180] RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 0000000000447399 [ 76.591583][ T9180] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 76.599560][ T9180] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 [ 76.607533][ T9180] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dcc2c [ 76.615507][ T9180] R13: 00007ffc4ab62fbf R14: 00007f95a5ef89c0 R15: 20c49ba5e353f7cf [ 76.624836][ T9180] Kernel Offset: disabled [ 76.629281][ T9180] Rebooting in 86400 seconds..