[ 37.201953][ T26] audit: type=1800 audit(1552300553.353:27): pid=7559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 37.230930][ T26] audit: type=1800 audit(1552300553.353:28): pid=7559 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 37.804470][ T26] audit: type=1800 audit(1552300554.013:29): pid=7559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.824119][ T26] audit: type=1800 audit(1552300554.013:30): pid=7559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.113' (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 syzkaller login: [ 53.072331][ C0] WARNING: CPU: 0 PID: 7757 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0 [ 53.082314][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 53.088885][ C0] CPU: 0 PID: 7757 Comm: syz-executor840 Not tainted 5.0.0+ #17 [ 53.096608][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.106641][ C0] Call Trace: [ 53.109901][ C0] [ 53.112766][ C0] dump_stack+0x172/0x1f0 [ 53.117083][ C0] ? perf_group_attach+0x360/0x4d0 [ 53.122319][ C0] panic+0x2cb/0x65c [ 53.126207][ C0] ? __warn_printk+0xf3/0xf3 [ 53.130774][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.135868][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.142089][ C0] ? __warn.cold+0x5/0x45 [ 53.146401][ C0] ? __warn+0xe8/0x1d0 [ 53.150452][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.155541][ C0] __warn.cold+0x20/0x45 [ 53.159784][ C0] ? __lock_acquire+0x548/0x3fb0 [ 53.164695][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.169787][ C0] report_bug+0x263/0x2b0 [ 53.174139][ C0] do_error_trap+0x11b/0x200 [ 53.178713][ C0] do_invalid_op+0x37/0x50 [ 53.183108][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.188215][ C0] invalid_op+0x14/0x20 [ 53.192352][ C0] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 53.198053][ 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 53 ba eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 58 69 5d 89 e8 30 b3 23 00 e9 5b fc [ 53.217639][ C0] RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006 [ 53.223697][ C0] RAX: ffff888098e00480 RBX: ffff888094d42b00 RCX: ffffffff8184a078 [ 53.231676][ C0] RDX: 0000000000010000 RSI: ffffffff8184a39d RDI: ffff888094d42d18 [ 53.239638][ C0] RBP: ffff8880ae807ed8 R08: ffff888098e00480 R09: ffffffff899a7008 [ 53.247595][ C0] R10: ffffffff899a7010 R11: 0000000000000001 R12: ffff88808517ca80 [ 53.255549][ C0] R13: ffffe8ffffc13ed0 R14: 0000000000000000 R15: ffff8880ae832048 [ 53.263502][ C0] ? perf_group_attach+0xd8/0x4d0 [ 53.268499][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.273702][ C0] ? perf_group_attach+0x3fd/0x4d0 [ 53.278798][ C0] __perf_install_in_context+0x4b5/0x960 [ 53.284416][ C0] ? kvm_clock_read+0x18/0x30 [ 53.289075][ C0] ? __perf_event_enable+0x920/0x920 [ 53.294413][ C0] remote_function+0x12b/0x1a0 [ 53.299165][ C0] ? debug_smp_processor_id+0x3c/0x280 [ 53.304609][ C0] flush_smp_call_function_queue+0x14a/0x500 [ 53.310639][ C0] ? perf_duration_warn+0x40/0x40 [ 53.315655][ C0] generic_smp_call_function_single_interrupt+0x13/0x2b [ 53.322571][ C0] smp_call_function_single_interrupt+0xa3/0x460 [ 53.328872][ C0] call_function_single_interrupt+0xf/0x20 [ 53.334853][ C0] [ 53.337782][ C0] RIP: 0010:do_syscall_64+0x5b/0x610 [ 53.343048][ C0] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 1d 05 00 00 48 83 3d 47 f4 91 07 00 0f 84 32 04 00 00 e8 ec bd 6f 00 fb 66 0f 1f 44 00 00 <65> 4c 8b 34 25 00 ee 01 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 [ 53.362821][ C0] RSP: 0018:ffff8880857a7f20 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff04 [ 53.371286][ C0] RAX: ffff888098e00480 RBX: 00000000000000ca RCX: 0000000000000000 [ 53.379247][ C0] RDX: 0000000000000000 RSI: ffffffff8100a004 RDI: ffff888098e00cfc [ 53.387197][ C0] RBP: ffff8880857a7f48 R08: ffff888098e00480 R09: 0000000000000000 [ 53.395270][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880857a7f58 [ 53.403244][ C0] R13: ffffffff88929440 R14: 0000000000000000 R15: 0000000000000000 [ 53.411200][ C0] ? do_syscall_64+0x54/0x610 [ 53.415903][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.421800][ C0] RIP: 0033:0x446919 [ 53.425732][ C0] 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 [ 53.445321][ C0] RSP: 002b:00007fa5e6b83db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.453738][ C0] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446919 [ 53.461686][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 53.469742][ C0] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 53.477696][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 53.485643][ C0] R13: 00007ffe250c888f R14: 00007fa5e6b849c0 R15: 000000000000002d [ 53.494428][ C0] Kernel Offset: disabled [ 53.498816][ C0] Rebooting in 86400 seconds..