------------[ cut here ]------------
WARNING: CPU: 1 PID: 4119 at kernel/signal.c:2086 do_jobctl_trap kernel/signal.c:2086 [inline]()
WARNING: CPU: 1 PID: 4119 at kernel/signal.c:2086 get_signal+0x11de/0x1550 kernel/signal.c:2205()
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 4119 Comm: syz-executor5 Not tainted 4.4.113-g962d1f3 #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 56a3c8b056f2520a ffff8801d1b07b68 ffffffff81d028ed
 ffffffff838439a0 ffff8801d1b07c40 ffffffff838495e0 0000000000000009
 0000000000000826 ffff8801d1b07c30 ffffffff81419cda 0000000041b58ab3
Call Trace:
 [<ffffffff81d028ed>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d028ed>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81419cda>] panic+0x1aa/0x388 kernel/panic.c:112
 [<ffffffff8112d8d5>] warn_slowpath_common+0x125/0x140 kernel/panic.c:455
 [<ffffffff8112db39>] warn_slowpath_null+0x29/0x30 kernel/panic.c:492
 [<ffffffff8115d55e>] do_jobctl_trap kernel/signal.c:2086 [inline]
 [<ffffffff8115d55e>] get_signal+0x11de/0x1550 kernel/signal.c:2205
 [<ffffffff8100e7fb>] do_signal+0x8b/0x1d40 arch/x86/kernel/signal.c:712
 [<ffffffff810035fa>] exit_to_usermode_loop+0x11a/0x160 arch/x86/entry/common.c:247
 [<ffffffff81006535>] prepare_exit_to_usermode arch/x86/entry/common.c:282 [inline]
 [<ffffffff81006535>] syscall_return_slowpath+0x1b5/0x1f0 arch/x86/entry/common.c:347
 [<ffffffff83771e29>] int_ret_from_sys_call+0x25/0xa3
Shutting down cpus with NMI
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..