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-5,10.128.15.206' (ECDSA) to the list of known hosts.
2017/12/04 14:30:33 fuzzer started
2017/12/04 14:30:33 dialing manager at 10.128.0.26:36183
syzkaller login: [   26.837788] WARNING: CPU: 0 PID: 3085 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   26.839005] Kernel panic - not syncing: panic_on_warn set ...
[   26.839005] 
[   26.839973] CPU: 0 PID: 3085 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   26.840924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.842143] Call Trace:
[   26.842501]  dump_stack+0x194/0x257
[   26.843002]  ? arch_local_irq_restore+0x53/0x53
[   26.843631]  ? vsnprintf+0x1ed/0x1900
[   26.844159]  panic+0x1e4/0x41c
[   26.844590]  ? refcount_error_report+0x214/0x214
[   26.845221]  ? show_regs_print_info+0x65/0x65
[   26.845830]  ? __warn+0x1c1/0x200
[   26.846299]  ? __wake_up_common+0x433/0x770
[   26.846876]  __warn+0x1dc/0x200
[   26.847318]  ? __wake_up_common+0x433/0x770
[   26.847898]  report_bug+0x211/0x2d0
[   26.848394]  fixup_bug.part.11+0x37/0x80
[   26.848938]  do_error_trap+0x2d7/0x3e0
[   26.849463]  ? math_error+0x400/0x400
[   26.849978]  ? check_noncircular+0x20/0x20
[   26.850548]  ? find_held_lock+0x39/0x1d0
[   26.851110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   26.851759]  do_invalid_op+0x1b/0x20
[   26.852257]  invalid_op+0x22/0x40
[   26.852739] RIP: 0010:__wake_up_common+0x433/0x770
[   26.853393] RSP: 0018:ffff8801ccabf4b0 EFLAGS: 00010046
[   26.854103] RAX: 0000000000000000 RBX: ffff8801cc1f18d0 RCX: 0000000000000004
[   26.855053] RDX: 1ffffffff0bd9741 RSI: ffff8801cc1f18e8 RDI: 0000000000000082
[   26.856038] RBP: ffff8801ccabf5b0 R08: 0000000000000000 R09: 0000000000000000
[   26.856989] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   26.857955] R13: ffff8801cc1f1910 R14: 0000000000000001 R15: ffff8801cc1f1970
[   26.865210]  ? __lock_is_held+0xbc/0x140
[   26.869240]  ? lock_release+0xda0/0xda0
[   26.873181]  ? do_wait_intr+0x3e0/0x3e0
[   26.877127]  ? __lock_is_held+0xbc/0x140
[   26.881162]  __wake_up_locked+0x11/0x20
[   26.885104]  ep_insert+0x15d0/0x1b10
[   26.888797]  ? ep_poll+0x1190/0x1190
[   26.892500]  ? lock_release+0xda0/0xda0
[   26.896441]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   26.902289]  ? lock_downgrade+0x980/0x980
[   26.906410]  ? rcu_note_context_switch+0x710/0x710
[   26.911310]  ? __might_sleep+0x95/0x190
[   26.915251]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.919375]  ? __mutex_lock+0x16f/0x1a80
[   26.923399]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.927515]  ? lock_downgrade+0x980/0x980
[   26.931628]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.935751]  ? lock_release+0xda0/0xda0
[   26.939699]  ? __lock_is_held+0xbc/0x140
[   26.943741]  ? __fget+0x362/0x580
[   26.947169]  ? iterate_fd+0x3f0/0x3f0
[   26.950937]  ? find_held_lock+0x39/0x1d0
[   26.954975]  ? lock_downgrade+0x980/0x980
[   26.959090]  ? __might_fault+0xe0/0x1d0
[   26.963036]  ? __fget_light+0x29d/0x390
[   26.966979]  ? fget_raw+0x20/0x20
[   26.970402]  ? is_bpf_text_address+0xa4/0x120
[   26.974865]  ? kernel_text_address+0x102/0x140
[   26.979416]  ? __might_sleep+0x95/0x190
[   26.983359]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   26.988786]  SyS_epoll_ctl+0x12e4/0x1ab0
[   26.992817]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   26.997020]  ? save_stack+0xa3/0xd0
[   27.000621]  ? SyS_epoll_create+0x240/0x240
[   27.004908]  ? __lock_is_held+0xbc/0x140
[   27.008947]  ? __fd_install+0x288/0x740
[   27.012892]  ? get_unused_fd_flags+0x190/0x190
[   27.017442]  ? may_open_dev+0xe0/0xe0
[   27.021218]  ? rcu_pm_notify+0xc0/0xc0
[   27.025571]  ? putname+0xee/0x130
[   27.028996]  ? putname+0xee/0x130
[   27.032413]  ? rcu_read_lock_sched_held+0x108/0x120
[   27.037397]  ? kmem_cache_free+0x249/0x280
[   27.041603]  ? putname+0xf3/0x130
[   27.045039]  ? do_sys_open+0x320/0x6d0
[   27.048927]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   27.053742]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.058732]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.063460]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   27.068180] RIP: 0033:0x45f7d8
[   27.071336] RSP: 002b:000000c4201bf4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   27.079008] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   27.086243] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   27.093478] RBP: 000000c4201bf720 R08: 0000000000000000 R09: 0000000000000000
[   27.100715] R10: 000000c4201bf4e4 R11: 0000000000000246 R12: 000000c4219ff439
[   27.107954] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   27.115389] Dumping ftrace buffer:
[   27.118976]    (ftrace buffer empty)
[   27.122656] Kernel Offset: disabled
[   27.126256] Rebooting in 86400 seconds..