[ 39.786204][ T26] audit: type=1800 audit(1555079503.959:26): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.826652][ T26] audit: type=1800 audit(1555079503.959:27): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.853399][ T26] audit: type=1800 audit(1555079503.959:28): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 40.703477][ T26] audit: type=1800 audit(1555079504.899:29): pid=7813 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 49.356464][ T7984] WARNING: CPU: 0 PID: 7984 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0 [ 49.366316][ T7984] Kernel panic - not syncing: panic_on_warn set ... [ 49.372933][ T7984] CPU: 0 PID: 7984 Comm: syz-executor863 Not tainted 5.1.0-rc4-next-20190412 #24 [ 49.382132][ T7984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.392208][ T7984] Call Trace: [ 49.395516][ T7984] dump_stack+0x172/0x1f0 [ 49.399847][ T7984] ? perf_group_attach+0x340/0x4d0 [ 49.405052][ T7984] panic+0x2cb/0x72b [ 49.408946][ T7984] ? __warn_printk+0xf3/0xf3 [ 49.413536][ T7984] ? perf_group_attach+0x3fd/0x4d0 [ 49.418643][ T7984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.424889][ T7984] ? __warn.cold+0x5/0x46 [ 49.429238][ T7984] ? __warn+0xe8/0x1d0 [ 49.433315][ T7984] ? perf_group_attach+0x3fd/0x4d0 [ 49.438466][ T7984] __warn.cold+0x20/0x46 [ 49.442740][ T7984] ? perf_group_attach+0x3fd/0x4d0 [ 49.447856][ T7984] report_bug+0x263/0x2b0 [ 49.452198][ T7984] do_error_trap+0x11b/0x200 [ 49.456793][ T7984] do_invalid_op+0x37/0x50 [ 49.461205][ T7984] ? perf_group_attach+0x3fd/0x4d0 [ 49.466492][ T7984] invalid_op+0x14/0x20 [ 49.470644][ T7984] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 49.476373][ T7984] 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 5a eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 18 9d 5f 89 e8 a0 63 24 00 e9 5b fc [ 49.496002][ T7984] RSP: 0018:ffff88809f467a90 EFLAGS: 00010093 [ 49.502072][ T7984] RAX: ffff8880a4c90240 RBX: ffff88808c43c300 RCX: ffffffff81852b98 [ 49.510039][ T7984] RDX: 0000000000000000 RSI: ffffffff81852ebd RDI: ffff88808c43c518 [ 49.518015][ T7984] RBP: ffff88809f467ac0 R08: ffff8880a4c90240 R09: ffffffff899cf008 [ 49.525982][ T7984] R10: ffffffff899cf010 R11: 0000000000000001 R12: ffff8880a4e6d300 [ 49.533967][ T7984] R13: ffffe8ffffc13bb8 R14: 0000000000000000 R15: ffff8880ae8321c8 [ 49.542052][ T7984] ? perf_group_attach+0xd8/0x4d0 [ 49.547098][ T7984] ? perf_group_attach+0x3fd/0x4d0 [ 49.552572][ T7984] __perf_install_in_context+0x4b5/0x960 [ 49.558294][ T7984] ? __perf_event_enable+0x920/0x920 [ 49.563580][ T7984] ? perf_duration_warn+0x40/0x40 [ 49.570124][ T7984] remote_function+0x12b/0x1a0 [ 49.574888][ T7984] generic_exec_single+0x284/0x4b0 [ 49.580006][ T7984] smp_call_function_single+0x12d/0x420 [ 49.585562][ T7984] ? _raw_spin_unlock+0x2d/0x50 [ 49.590435][ T7984] ? perf_duration_warn+0x40/0x40 [ 49.595467][ T7984] ? generic_exec_single+0x4b0/0x4b0 [ 49.600758][ T7984] ? __do_sys_perf_event_open+0x1a5b/0x24e0 [ 49.606685][ T7984] perf_install_in_context+0x369/0x3d0 [ 49.612157][ T7984] ? list_add_event+0xcd0/0xcd0 [ 49.617006][ T7984] ? __perf_event_enable+0x920/0x920 [ 49.622297][ T7984] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.628551][ T7984] __do_sys_perf_event_open+0x1858/0x24e0 [ 49.634297][ T7984] ? perf_event_set_output+0x4e0/0x4e0 [ 49.639815][ T7984] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.645273][ T7984] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.650743][ T7984] ? do_syscall_64+0x26/0x610 [ 49.655426][ T7984] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.661507][ T7984] ? do_syscall_64+0x26/0x610 [ 49.666292][ T7984] __x64_sys_perf_event_open+0xbe/0x150 [ 49.671928][ T7984] do_syscall_64+0x103/0x610 [ 49.676523][ T7984] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.682422][ T7984] RIP: 0033:0x446a69 [ 49.686327][ T7984] 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.705941][ T7984] RSP: 002b:00007f7548a6cdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 49.714364][ T7984] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446a69 [ 49.722462][ T7984] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 49.730434][ T7984] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 49.738425][ T7984] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dbc3c [ 49.746408][ T7984] R13: 00007ffeac7520ff R14: 00007f7548a6d9c0 R15: 0000000000000000 [ 49.755497][ T7984] Kernel Offset: disabled [ 49.759901][ T7984] Rebooting in 86400 seconds..