[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.902401][ T26] audit: type=1800 audit(1562011897.365:25): pid=7930 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.945228][ T26] audit: type=1800 audit(1562011897.365:26): pid=7930 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.982043][ T26] audit: type=1800 audit(1562011897.365:27): pid=7930 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.214' (ECDSA) to the list of known hosts. syzkaller login: [ 63.071825][ T8095] IPVS: ftp: loaded support on port[0] = 21 [ 63.071829][ T8096] IPVS: ftp: loaded support on port[0] = 21 [ 63.084694][ T8093] IPVS: ftp: loaded support on port[0] = 21 [ 63.090375][ T8094] IPVS: ftp: loaded support on port[0] = 21 [ 63.094285][ T8098] IPVS: ftp: loaded support on port[0] = 21 [ 63.101389][ T8097] 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 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 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 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 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 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 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 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 [ 79.085771][ C0] WARNING: CPU: 0 PID: 9457 at kernel/events/core.c:1835 add_event_to_ctx+0x1351/0x1630 [ 79.095714][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 79.102374][ C0] CPU: 0 PID: 9457 Comm: syz-executor071 Not tainted 5.2.0-rc7 #12 [ 79.110445][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.121700][ C0] Call Trace: [ 79.125619][ C0] [ 79.128548][ C0] dump_stack+0x1d8/0x2f8 [ 79.133120][ C0] panic+0x28a/0x7c9 [ 79.137305][ C0] ? __warn+0x126/0x220 [ 79.141442][ C0] ? nmi_panic+0x97/0x97 [ 79.145753][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.151223][ C0] ? is_valid_bugaddr+0x81/0x100 [ 79.156331][ C0] __warn+0x216/0x220 [ 79.160725][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.166594][ C0] report_bug+0x190/0x290 [ 79.171335][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.176953][ C0] do_error_trap+0xd7/0x450 [ 79.181882][ C0] do_invalid_op+0x36/0x40 [ 79.186626][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.191891][ C0] invalid_op+0x14/0x20 [ 79.196217][ C0] RIP: 0010:add_event_to_ctx+0x1351/0x1630 [ 79.202703][ C0] Code: ff e8 c3 18 e6 ff 0f 0b e9 88 ed ff ff e8 b7 18 e6 ff 0f 0b e9 42 ed ff ff e8 ab 18 e6 ff 0f 0b e9 4f f8 ff ff e8 9f 18 e6 ff <0f> 0b e9 d5 f8 ff ff 48 c7 c1 a0 32 dd 88 80 e1 07 80 c1 03 38 c1 [ 79.224248][ C0] RSP: 0018:ffff8880aea09e48 EFLAGS: 00010006 [ 79.230537][ C0] RAX: ffffffff818f9941 RBX: ffff88809ef81518 RCX: ffff888099870540 [ 79.238597][ C0] RDX: 0000000080010003 RSI: 0000000000000000 RDI: 0000000000000000 [ 79.246723][ C0] RBP: ffff8880aea09ed0 R08: ffffffff818f91aa R09: ffffffff891b1018 [ 79.255108][ C0] R10: ffffffff891b1010 R11: ffffffff891b1003 R12: dffffc0000000000 [ 79.263614][ C0] R13: ffff88809ef81300 R14: ffffe8ffffc15758 R15: ffff88808904e140 [ 79.272808][ C0] ? add_event_to_ctx+0xbba/0x1630 [ 79.279062][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.284514][ C0] ? add_event_to_ctx+0x1351/0x1630 [ 79.290147][ C0] __perf_install_in_context+0x54a/0x7e0 [ 79.295945][ C0] ? alloc_perf_context+0x280/0x280 [ 79.301583][ C0] remote_function+0xeb/0x170 [ 79.307638][ C0] ? event_function+0x3e0/0x3e0 [ 79.312729][ C0] flush_smp_call_function_queue+0x2c6/0x4f0 [ 79.318778][ C0] generic_smp_call_function_single_interrupt+0x13/0x20 [ 79.326129][ C0] smp_call_function_single_interrupt+0x7f/0x90 [ 79.333190][ C0] call_function_single_interrupt+0xf/0x20 [ 79.339317][ C0] [ 79.342440][ C0] RIP: 0010:_raw_spin_unlock_irq+0x5f/0x80 [ 79.349098][ C0] Code: 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 a0 63 aa 88 e8 82 86 16 fa 48 83 3d fa 0e 12 01 00 74 26 fb 66 0f 1f 44 00 00 01 00 00 00 e8 c7 ca b9 f9 65 8b 05 8c a8 69 78 85 c0 74 03 5b [ 79.369743][ C0] RSP: 0018:ffff888089b2f450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 79.378401][ C0] RAX: 1ffffffff1154c74 RBX: ffff8880aea35100 RCX: dffffc0000000000 [ 79.386465][ C0] RDX: 0000000040000000 RSI: ffffffff81535dd1 RDI: ffff888099870d68 [ 79.394679][ C0] RBP: ffff888089b2f458 R08: ffff888099870d80 R09: ffffed1015d46a21 [ 79.403068][ C0] R10: ffffed1015d46a21 R11: 1ffff11015d46a20 R12: ffff8880aea35100 [ 79.412199][ C0] R13: ffff888099870540 R14: dffffc0000000000 R15: ffff88809b2dc5c0 [ 79.420547][ C0] ? finish_lock_switch+0x31/0x40 [ 79.425726][ C0] finish_lock_switch+0x31/0x40 [ 79.430815][ C0] finish_task_switch+0x251/0x560 [ 79.435820][ C0] __schedule+0x660/0x9e0 [ 79.440221][ C0] ? is_mmconf_reserved+0x410/0x410 [ 79.445419][ C0] ? hrtimer_start_range_ns+0x565/0x690 [ 79.451222][ C0] schedule+0x131/0x1d0 [ 79.455535][ C0] futex_wait_queue_me+0x344/0x570 [ 79.460712][ C0] ? futex_wait_setup+0x710/0x710 [ 79.465825][ C0] futex_wait+0x2dd/0x7c0 [ 79.470503][ C0] ? arc4_set_key+0x290/0x4c0 [ 79.476644][ C0] ? do_futex+0x3f40/0x3f40 [ 79.481318][ C0] ? hrtimer_init_sleeper+0x70/0x70 [ 79.486871][ C0] ? __lock_acquire+0xcf7/0x1a40 [ 79.491981][ C0] do_futex+0x557/0x3f40 [ 79.496637][ C0] ? __bfs+0x550/0x550 [ 79.501340][ C0] ? __bfs+0x550/0x550 [ 79.505644][ C0] ? __lock_acquire+0xcf7/0x1a40 [ 79.510687][ C0] ? __bfs+0x550/0x550 [ 79.514788][ C0] ? handle_futex_death+0x3f0/0x3f0 [ 79.519993][ C0] ? __lock_acquire+0xcf7/0x1a40 [ 79.525002][ C0] ? __lock_acquire+0xcf7/0x1a40 [ 79.530103][ C0] ? trace_lock_acquire+0x190/0x190 [ 79.535434][ C0] ? __might_fault+0xf9/0x160 [ 79.540181][ C0] ? read_seqcount_begin+0x12a/0x1c0 [ 79.545734][ C0] ? trace_hardirqs_on+0x74/0x80 [ 79.551011][ C0] ? ktime_get+0x4a/0x110 [ 79.555320][ C0] ? read_seqcount_begin+0x17f/0x1c0 [ 79.560759][ C0] ? ktime_get+0xe0/0x110 [ 79.565155][ C0] __se_sys_futex+0x31d/0x440 [ 79.569920][ C0] ? __x64_sys_futex+0x100/0x100 [ 79.574940][ C0] ? fpregs_assert_state_consistent+0xaa/0xe0 [ 79.581436][ C0] ? prepare_exit_to_usermode+0x1e1/0x4f0 [ 79.587428][ C0] ? __x64_sys_clock_gettime+0x1c5/0x220 [ 79.593265][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 79.598813][ C0] ? trace_irq_disable_rcuidle+0x23/0x1c0 [ 79.604715][ C0] __x64_sys_futex+0xe5/0x100 [ 79.610311][ C0] do_syscall_64+0xfe/0x140 [ 79.615026][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.621047][ C0] RIP: 0033:0x447489 [ 79.625319][ C0] Code: e8 3c e6 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 ab 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 79.647576][ C0] RSP: 002b:00007ffd2d456de8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 79.656803][ C0] RAX: ffffffffffffffda RBX: 00000000000134a5 RCX: 0000000000447489 [ 79.665200][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dcc3c [ 79.674136][ C0] RBP: 00000000006dcc3c R08: 0000000000000000 R09: 0000000000000000 [ 79.683729][ C0] R10: 00007ffd2d456e00 R11: 0000000000000246 R12: 00000000006dcc30 [ 79.698264][ C0] R13: 0000000000000001 R14: 000000000000002d R15: 20c49ba5e353f7cf [ 79.711019][ C0] Kernel Offset: disabled [ 79.715802][ C0] Rebooting in 86400 seconds..