------------[ cut here ]------------
WARNING: CPU: 0 PID: 7828 at kernel/signal.c:2090 do_jobctl_trap kernel/signal.c:2090 [inline]()
WARNING: CPU: 0 PID: 7828 at kernel/signal.c:2090 get_signal+0x11d5/0x14a0 kernel/signal.c:2209()
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7828 Comm: syz-executor2 Not tainted 4.4.166+ #5
 0000000000000000 127ab36b2b7392af ffff8801aea2fb20 ffffffff81aa62ad
 ffffffff828353a0 ffff8800a6f82f80 ffffffff8283b080 0000000000000009
 000000000000082a ffff8801aea2fbe0 ffffffff813a2274 0000000041b58ab3
Call Trace:
 [<ffffffff81aa62ad>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81aa62ad>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff813a2274>] panic+0x19e/0x359 kernel/panic.c:112
 [<ffffffff813a2464>] warn_slowpath_common.cold.6+0x20/0x20 kernel/panic.c:455
 [<ffffffff810d4489>] warn_slowpath_null+0x29/0x30 kernel/panic.c:492
 [<ffffffff81102075>] do_jobctl_trap kernel/signal.c:2090 [inline]
 [<ffffffff81102075>] get_signal+0x11d5/0x14a0 kernel/signal.c:2209
 [<ffffffff8100bdc5>] do_signal+0x95/0x1840 arch/x86/kernel/signal.c:712
 [<ffffffff81003eba>] exit_to_usermode_loop+0x11a/0x160 arch/x86/entry/common.c:184
 [<ffffffff81005784>] prepare_exit_to_usermode arch/x86/entry/common.c:221 [inline]
 [<ffffffff81005784>] syscall_return_slowpath+0x254/0x2d0 arch/x86/entry/common.c:286
 [<ffffffff82715e21>] int_ret_from_sys_call+0x25/0xa3
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..