2017/11/14 14:19:41 parsed 1 programs
2017/11/14 14:19:41 executed programs: 0
syzkaller login: [   27.549391] WARNING: CPU: 3 PID: 1 at kernel/signal.c:340 task_participate_group_stop+0x1ce/0x230
[   27.550294] Kernel panic - not syncing: panic_on_warn set ...
[   27.550294] 
[   27.551066] CPU: 3 PID: 1 Comm: init Not tainted 4.14.0-next-20171114+ #14
[   27.551731] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   27.552649] Call Trace:
[   27.552903]  dump_stack+0x194/0x257
[   27.553276]  ? arch_local_irq_restore+0x53/0x53
[   27.553729]  ? vsnprintf+0x1ed/0x1900
[   27.554102]  panic+0x1e4/0x41c
[   27.554413]  ? refcount_error_report+0x214/0x214
[   27.554867]  ? show_regs_print_info+0x65/0x65
[   27.555304]  ? __warn+0x1c1/0x200
[   27.555640]  ? task_participate_group_stop+0x1ce/0x230
[   27.556142]  __warn+0x1dc/0x200
[   27.556459]  ? task_participate_group_stop+0x1ce/0x230
[   27.556964]  report_bug+0x211/0x2d0
[   27.561488]  fixup_bug.part.11+0x37/0x80
[   27.561883]  do_error_trap+0x2d7/0x3e0
[   27.562261]  ? find_held_lock+0x39/0x1d0
[   27.569671]  ? math_error+0x400/0x400
[   27.570058]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   27.570528]  do_invalid_op+0x1b/0x20
[   27.570886]  invalid_op+0x18/0x20
[   27.571219] RIP: 0010:task_participate_group_stop+0x1ce/0x230
[   27.572139] RSP: 0018:ffff88002df8f8c8 EFLAGS: 00010093
[   27.572652] RAX: ffff88002df86040 RBX: ffff88002df86040 RCX: ffffffff8144169e
[   27.573356] RDX: 0000000000000000 RSI: 0000000000060013 RDI: ffff88002df864c0
[   27.574045] RBP: ffff88002df8f8e0 R08: 0000000000000000 R09: 000000000000000c
[   27.574731] R10: 0000000000000000 R11: ffffffff8744dce0 R12: ffff88007faa6040
[   27.575609] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88002df865b8
[   27.576310]  ? task_participate_group_stop+0x1ce/0x230
[   27.576817]  ? task_participate_group_stop+0x1ce/0x230
[   27.577335]  ? do_signal_stop+0x489/0x910
[   27.577733]  do_signal_stop+0x217/0x910
[   27.578120]  ? ptrace_do_notify+0x310/0x310
[   27.578536]  ? __lock_is_held+0xbc/0x140
[   27.578937]  get_signal+0x55a/0x16c0
[   27.579307]  ? ptrace_notify+0x130/0x130
[   27.579698]  ? lock_downgrade+0x980/0x980
[   27.580098]  ? find_held_lock+0x39/0x1d0
[   27.580497]  ? lock_downgrade+0x980/0x980
[   27.580901]  do_signal+0x94/0x1ee0
[   27.593410]  ? lock_release+0xd80/0xd80
[   27.593797]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   27.594362]  ? setup_sigcontext+0x7d0/0x7d0
[   27.594782]  ? __might_sleep+0x95/0x190
[   27.595181]  ? poll_select_copy_remaining+0x38f/0x620
[   27.595680]  ? poll_schedule_timeout+0x1f0/0x1f0
[   27.596136]  ? exit_to_usermode_loop+0x8c/0x310
[   27.596592]  exit_to_usermode_loop+0x214/0x310
[   27.608211]  ? do_restart_poll+0x2a0/0x2a0
[   27.608626]  ? trace_event_raw_event_sys_exit+0x260/0x260
[   27.613568]  ? kasan_check_write+0x14/0x20
[   27.614050]  syscall_return_slowpath+0x490/0x550
[   27.614566]  ? prepare_exit_to_usermode+0x340/0x340
[   27.615117]  ? entry_SYSCALL_64_fastpath+0x69/0x96
[   27.615653]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.616205]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.616735]  entry_SYSCALL_64_fastpath+0x94/0x96
[   27.625345] RIP: 0033:0x7f7dd5e7ddd3
[   27.629473] RSP: 002b:00007ffd230cecf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017
[   27.630311] RAX: fffffffffffffdfe RBX: 00007ffd230ceea0 RCX: 00007f7dd5e7ddd3
[   27.631113] RDX: 0000000000000000 RSI: 00007ffd230cf050 RDI: 000000000000000b
[   27.631969] RBP: 00007ffd230cf050 R08: 00007ffd230cf0d0 R09: 0000000000000001
[   27.632814] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[   27.639654] R13: 00007ffd230cf430 R14: 0000000000000000 R15: 0000000000000000
[   27.657062] Dumping ftrace buffer:
[   27.657598]    (ftrace buffer empty)
[   27.658008] Kernel Offset: disabled
[   27.658411] Rebooting in 86400 seconds..