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-test-0,10.128.0.52' (ECDSA) to the list of known hosts.
2017/12/01 13:03:14 fuzzer started
2017/12/01 13:03:14 connecting to host at 10.128.0.26:38831
2017/12/01 13:03:14 checking config...
2017/12/01 13:03:16 enabled syscalls: 1411
2017/12/01 13:03:16 testing simple program...
syzkaller login: [   32.535733] WARNING: CPU: 1 PID: 3084 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   32.537046] Kernel panic - not syncing: panic_on_warn set ...
[   32.537046] 
[   32.538030] CPU: 1 PID: 3084 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #32
[   32.538983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.540204] Call Trace:
[   32.540567]  dump_stack+0x194/0x257
[   32.541077]  ? arch_local_irq_restore+0x53/0x53
[   32.541708]  ? vsnprintf+0x1ed/0x1900
[   32.542262]  panic+0x1e4/0x41c
[   32.542712]  ? refcount_error_report+0x214/0x214
[   32.543348]  ? show_regs_print_info+0x65/0x65
[   32.543955]  ? __warn+0x1c1/0x200
[   32.544426]  ? __wake_up_common+0x433/0x770
[   32.545003]  __warn+0x1dc/0x200
[   32.545450]  ? __wake_up_common+0x433/0x770
[   32.546032]  report_bug+0x211/0x2d0
[   32.546532]  fixup_bug.part.11+0x37/0x80
[   32.547091]  do_error_trap+0x2d7/0x3e0
[   32.547623]  ? math_error+0x400/0x400
[   32.548136]  ? check_noncircular+0x20/0x20
[   32.548722]  ? mark_held_locks+0xb2/0x100
[   32.549283]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   32.549969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   32.550705]  do_invalid_op+0x1b/0x20
[   32.551207]  invalid_op+0x22/0x40
[   32.551674] RIP: 0010:__wake_up_common+0x433/0x770
[   32.552329] RSP: 0018:ffff8801cb6874b0 EFLAGS: 00010046
[   32.553076] RAX: 0000000000000000 RBX: ffff8801cc87e8d0 RCX: 0000000000000004
[   32.554030] RDX: 1ffffffff0bd9741 RSI: ffff8801cc87e8e8 RDI: 0000000000000082
[   32.554984] RBP: ffff8801cb6875b0 R08: 0000000000000000 R09: 0000000000000000
[   32.555973] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   32.563211] R13: ffff8801cc87e910 R14: 0000000000000001 R15: ffff8801cc87e970
[   32.570473]  ? lock_release+0xda0/0xda0
[   32.574424]  ? do_wait_intr+0x3e0/0x3e0
[   32.578374]  ? __lock_is_held+0xbc/0x140
[   32.582411]  __wake_up_locked+0x11/0x20
[   32.586356]  ep_insert+0x15d0/0x1b10
[   32.590052]  ? ep_poll+0x1190/0x1190
[   32.593746]  ? lock_release+0xda0/0xda0
[   32.597690]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   32.603546]  ? rcu_note_context_switch+0x710/0x710
[   32.608447]  ? __might_sleep+0x95/0x190
[   32.612390]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.616509]  ? __mutex_lock+0x16f/0x1a80
[   32.620538]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.624658]  ? lock_downgrade+0x980/0x980
[   32.628775]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.632912]  ? lock_release+0xda0/0xda0
[   32.636857]  ? __lock_is_held+0xbc/0x140
[   32.640900]  ? __fget+0x362/0x580
[   32.644318]  ? debug_check_no_locks_freed+0x3d0/0x3d0
[   32.649494]  ? iterate_fd+0x3f0/0x3f0
[   32.653263]  ? find_held_lock+0x39/0x1d0
[   32.657302]  ? lock_downgrade+0x980/0x980
[   32.661419]  ? __might_fault+0xe0/0x1d0
[   32.665366]  ? __fget_light+0x29d/0x390
[   32.669309]  ? fget_raw+0x20/0x20
[   32.672733]  ? find_held_lock+0x39/0x1d0
[   32.676778]  ? __might_sleep+0x95/0x190
[   32.680741]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   32.686169]  SyS_epoll_ctl+0x12e4/0x1ab0
[   32.690206]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   32.694420]  ? SyS_epoll_create+0x240/0x240
[   32.698712]  ? lock_downgrade+0x980/0x980
[   32.702832]  ? do_fcntl+0xae4/0x1160
[   32.706532]  ? lock_release+0xda0/0xda0
[   32.710483]  ? iterate_fd+0x3f0/0x3f0
[   32.714261]  ? __fd_install+0x288/0x740
[   32.718210]  ? do_raw_spin_trylock+0x190/0x190
[   32.722769]  ? lock_release+0xda0/0xda0
[   32.726719]  ? _raw_spin_unlock+0x22/0x30
[   32.730837]  ? do_fcntl+0x10d/0x1160
[   32.734521]  ? f_getown+0xb0/0xb0
[   32.737950]  ? bpf_fd_pass+0x280/0x280
[   32.741810]  ? fd_install+0x4d/0x60
[   32.745412]  ? selinux_file_fcntl+0xf2/0x150
[   32.749791]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   32.754606]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.759597]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   32.764328]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   32.769063] RIP: 0033:0x45f7d8
[   32.772220] RSP: 002b:000000c4203e5300 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   32.779897] RAX: ffffffffffffffda RBX: 000000c42008c140 RCX: 000000000045f7d8
[   32.787134] RDX: 0000000000000007 RSI: 0000000000000001 RDI: 0000000000000004
[   32.794371] RBP: 000000c4203e56b8 R08: 0000000000000000 R09: 0000000000000000
[   32.801610] R10: 000000c4203e532c R11: 0000000000000246 R12: 0000000000000000
[   32.808857] R13: 00000000000000f2 R14: 0000000000000032 R15: 000000000000000f
[   32.816345] Dumping ftrace buffer:
[   32.819943]    (ftrace buffer empty)
[   32.823634] Kernel Offset: disabled
[   32.827236] Rebooting in 86400 seconds..