INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] 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 'ci-upstream-mmots-kasan-gce-4,10.128.0.47' (ECDSA) to the list of known hosts.
2017/12/04 14:29:38 fuzzer started
2017/12/04 14:29:38 dialing manager at 10.128.0.26:36183
syzkaller login: [   34.148898] WARNING: CPU: 1 PID: 3087 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   34.150145] Kernel panic - not syncing: panic_on_warn set ...
[   34.150145] 
[   34.151112] CPU: 1 PID: 3087 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   34.152063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.153336] Call Trace:
[   34.153694]  dump_stack+0x194/0x257
[   34.154185]  ? arch_local_irq_restore+0x53/0x53
[   34.154811]  ? vsnprintf+0x1ed/0x1900
[   34.155325]  panic+0x1e4/0x41c
[   34.155774]  ? refcount_error_report+0x214/0x214
[   34.156406]  ? show_regs_print_info+0x65/0x65
[   34.157013]  ? __warn+0x1c1/0x200
[   34.157483]  ? __wake_up_common+0x433/0x770
[   34.158060]  __warn+0x1dc/0x200
[   34.158518]  ? __wake_up_common+0x433/0x770
[   34.159096]  report_bug+0x211/0x2d0
[   34.159589]  fixup_bug.part.11+0x37/0x80
[   34.160135]  do_error_trap+0x2d7/0x3e0
[   34.160661]  ? math_error+0x400/0x400
[   34.161172]  ? check_noncircular+0x20/0x20
[   34.161741]  ? find_held_lock+0x39/0x1d0
[   34.162291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   34.162939]  do_invalid_op+0x1b/0x20
[   34.163437]  invalid_op+0x22/0x40
[   34.163901] RIP: 0010:__wake_up_common+0x433/0x770
[   34.164585] RSP: 0018:ffff8801cc7bf4b0 EFLAGS: 00010046
[   34.165308] RAX: 0000000000000000 RBX: ffff8801cd66e150 RCX: 0000000000000004
[   34.166258] RDX: 1ffffffff0bd9741 RSI: ffff8801cd66e168 RDI: 0000000000000082
[   34.167227] RBP: ffff8801cc7bf5b0 R08: 0000000000000000 R09: 0000000000000000
[   34.168221] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   34.170432] R13: ffff8801cd66e190 R14: 0000000000000001 R15: ffff8801cd66e1f0
[   34.177685]  ? __lock_is_held+0xbc/0x140
[   34.181715]  ? lock_release+0xda0/0xda0
[   34.185657]  ? do_wait_intr+0x3e0/0x3e0
[   34.189601]  ? __lock_is_held+0xbc/0x140
[   34.193637]  __wake_up_locked+0x11/0x20
[   34.197578]  ep_insert+0x15d0/0x1b10
[   34.201272]  ? ep_poll+0x1190/0x1190
[   34.204957]  ? lock_release+0xda0/0xda0
[   34.208899]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   34.214747]  ? lock_downgrade+0x980/0x980
[   34.218863]  ? rcu_note_context_switch+0x710/0x710
[   34.223764]  ? __might_sleep+0x95/0x190
[   34.227705]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.231820]  ? __mutex_lock+0x16f/0x1a80
[   34.235845]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.239961]  ? lock_downgrade+0x980/0x980
[   34.244076]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.248199]  ? lock_release+0xda0/0xda0
[   34.252143]  ? __lock_is_held+0xbc/0x140
[   34.256182]  ? __fget+0x362/0x580
[   34.259607]  ? iterate_fd+0x3f0/0x3f0
[   34.263380]  ? find_held_lock+0x39/0x1d0
[   34.267419]  ? lock_downgrade+0x980/0x980
[   34.271536]  ? __might_fault+0xe0/0x1d0
[   34.275480]  ? __fget_light+0x29d/0x390
[   34.279425]  ? fget_raw+0x20/0x20
[   34.282855]  ? is_bpf_text_address+0xa4/0x120
[   34.287319]  ? kernel_text_address+0x102/0x140
[   34.291877]  ? __might_sleep+0x95/0x190
[   34.295818]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   34.301248]  SyS_epoll_ctl+0x12e4/0x1ab0
[   34.305279]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   34.309481]  ? save_stack+0xa3/0xd0
[   34.313081]  ? SyS_epoll_create+0x240/0x240
[   34.317370]  ? __lock_is_held+0xbc/0x140
[   34.321410]  ? __fd_install+0x288/0x740
[   34.325356]  ? get_unused_fd_flags+0x190/0x190
[   34.329902]  ? may_open_dev+0xe0/0xe0
[   34.333675]  ? rcu_pm_notify+0xc0/0xc0
[   34.337529]  ? putname+0xee/0x130
[   34.340950]  ? putname+0xee/0x130
[   34.344368]  ? rcu_read_lock_sched_held+0x108/0x120
[   34.349357]  ? kmem_cache_free+0x249/0x280
[   34.353562]  ? putname+0xf3/0x130
[   34.356985]  ? do_sys_open+0x320/0x6d0
[   34.361022]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   34.365831]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   34.370814]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   34.375542]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   34.380262] RIP: 0033:0x45f7d8
[   34.383425] RSP: 002b:000000c4200454b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   34.391101] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   34.398337] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   34.405572] RBP: 000000c420045720 R08: 0000000000000000 R09: 0000000000000000
[   34.412814] R10: 000000c4200454e4 R11: 0000000000000246 R12: 000000c421a299b9
[   34.420048] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   34.427489] Dumping ftrace buffer:
[   34.431054]    (ftrace buffer empty)
[   34.434729] Kernel Offset: disabled
[   34.438326] Rebooting in 86400 seconds..